How to Build a Power Bank Sharing App: Must-Have Features and Cost. Power bank cost

Power Bank Market Size, Share Trends Analysis Report By Battery Type (Li-polymer, Li-ion), By Distribution Channel (E-commerce, Brick Mortar), By Energy Source (Electric, Solar), By Capacity Range, By Region, And Segment Forecasts, 2023. 2030

The global power bank market size was valued at USD 13.48 billion in 2022 and is anticipated to grow at a compound annual growth rate (CAGR) of 8.3% from 2023 to 2030. The growth of this market can be attributed to the increase in the adoption of smartphones and other electronic devices, the growing power consumption of mobile devices due to technological advancements, the increasing affordability of power banks, and the extension in the reach of online retail platforms for end-users. One of the prominent drivers of the market is the growing use of smartphones and tablets. The number of smartphones in emerging markets, such as China, Brazil, and India, has increased owing to the reduced costs of mobile technologies.

The increase in the number of smartphones can be attributed to the changing lifestyle of consumers. This is likely to remain an important driving factor for the global market. In addition, power banks allow users to recharge their devices like tablets, smartphones, and other media devices with USB capability. Although the technology is developing rapidly for tablets and smartphones, their batteries are still left out with a limited capacity, which has augmented a high demand for power banks. The number of applications on smartphones is increasing, from shopping sites to ordering food online, however, their low-capacity batteries prove insufficient.

The limited capacity of smartphone batteries requires high battery power sources, which is expected to boost the market growth. With the development and innovation of more electronic devices, the demand for power banks is also increasing. Significant companies are introducing triple port-designed power banks to charge multiple devices. For instance, in July 2021, Xiaomi India introduced the Mi HyperSonic power bank. The new Xiaomi device has three USB Type-A and one USB Type-C connector, making it a triple port design. The power bank can fast-charge any device, including laptops or smartphones.

In addition to fast charging, it has a low-power charging mode for gadgets like fitness bands, Bluetooth headsets, smartwatches, and other low-power output devices. The increase in power consumption of electronic devices can be attributed to technological advancements and the Rapid growth of online retail platforms. The growing use of the internet and inadequate battery capacity of smartphones and other portable consumer electronic products are anticipated to continue to be the driving factors for power bank market growth. The increasing adoption and use of smartphones over the past years, due to changing lifestyles, has further led to a surge in product sales and will remain a key growth-driving factor.

over, as people become more aware of the importance of renewable energy, there has been a growing interest in portable power banks that use renewable energy sources, such as solar power. This trend is likely to continue as more consumers seek out eco-friendly power solutions. The popularity of outdoor activities and travel has also contributed to the growth of the market. As more people spend time outdoors, they need portable power sources to keep their devices charged. Overall, the market is expected to continue to grow in the coming years as more consumers rely on portable devices and seek out convenient and efficient power solutions.

The affordable product have further driven the market growth. The increasing domestic production assembly of power banks and the entry of new vendors have decreased prices. over, high competition among the manufacturers is leading to competitive product pricing. Power banks demand a lower capital investment for setting up a manufacturing facility and are fast-moving consumer electronics. The competition among manufacturers is anticipated to intensify over the forecast period. The global market is dominated by several players operating in international as well as national-level markets.

Capacity Range Insights

The 8,001 mAh-20,000 mAh segment accounted for a market share of 35.0% in 2022 and is expected to generate the highest revenue over the forecast period. The 8,001 mAh-20,000 mAh capacity range segment is known as High-capacity power banks. The demand for these high-capacity power banks is increasing as more consumers seek to charge their devices multiple times without having to recharge the power bank itself. Extensive digitization is the major factor driving segment growth. Due to the heavy usage of the internet, insufficient battery capacity of smartphones and other mobile consumer electronic products would remain a key driving factor for the growth market.

The penetration of smartphones has led to an increase in data consumption. Smartphones have transformed into high energy-consuming devices, which constantly drain the power of a battery owing to the usage of multiple apps for internet browsing, sending emails, personal entertainment, messaging, gaming, and other activities. As the current battery technologies failed to match up with the increasingly capable smartphones, handset manufacturers got back to the drawing boards and made the mobile consumer electronics economical to energy hence downsizing the hardware, so that there remains more space for a big battery. The 8,001 mAh-20,000 mAh segment is expected to witness significant growth over the forecast period owing to the ability of these power banks to charge a device multiple times.

Energy Source Insights

The electric segment accounted for the largest revenue share of 72.8% in 2022. They offer benefits, such as easy availability, low cost weight, and compactness, and are suitable for charging moveable electronic devices. These features are contributing to the growth in demand. The solar segment is expected to grow at a CAGR of 9.3% from 2023 to 2030. With the increasing popularity of solar panels and other renewable energy sources, there is a growing trend toward power banks that can be charged using renewable energy. Some power banks are designed to be charged using a built-in solar panel, while others can be charged using a separate solar panel or wind turbine. over, the growing popularity of solar energy as an environmentally friendly alternative is projected to boost the market during the forecast years.

Most of the users possess multiple electronic devices, hence they need a portable energy source, which simultaneously can recharge multiple devices. This is attributed to creating sustainable demand for the industrial power bank. Industrial power banks are designed as a portable energy storage system that allows companies to seamlessly continue operations using “instant-on” backup power for their industrial devices.

Battery Type Insights

The Lithium-ion (Li-ion) battery segment held the largest revenue share of 80.4% in 2022. Li-ion batteries offer numerous advantages, such as relatively low self-discharging, high energy density, and low maintenance. The energy density of lithium-ion batteries has been steadily increasing over the years, allowing for smaller and lighter power banks with higher capacities. over, as charging time is a key consideration for many consumers, fast-charging technology has become increasingly popular in the market. Some power banks now support fast charging protocols, such as Qualcomm Quick Charge or USB Power Delivery, which can significantly reduce charging times.

However, Li-ion batteries are expensive to produce, due to the high material costs and complex preparation processes involved in it. The Lithium polymer (Li-polymer) battery segment is expected to grow at a CAGR of10.3% from 2023 to 2030. Li-polymer batteries are flat-shaped, lightweight, and moldable. These features enable electronic device producers to manufacture compact and sleek electronic products. Li-polymer batteries are widely preferred, have a flexible form factor, and are safe as compared to other batteries. Low-cost smartphone manufacturers (such as Xiaomi) are also manufacturing power banks, which is estimated to be one of the major factors supporting the market growth.

Distribution Channel Insights

The e-commerce segment dominated the market with a revenue share of 52.9% in 2022. The e-commerce channel segment is also expected to witness substantial growth over the forecast period owing to the growing penetration of the internet. The segment is expected to witness the highest growth in the Asia Pacific region over the forecast periodowing to growing urbanization. India, China, and other Southeast Asian countries are witnessing robust industrial development and widespread urbanization. High internet penetration and digitization in different verticals are further expected to further propel market growth in these countries.

Companies, such as Alibaba and Flipkart, offered retail platforms for users to gain access to a wide range of products.The physical stores provide benefits, such as personalized customer service, offers, exclusive deals, and value-added services, such as device repair, and also provide engaging in-store experiences, which increases customer satisfaction. However, traditional retail stores have faced challenges in recent years due to the growth of e-commerce. The online retail channel is growing exponentially worldwide.

Regional Insights

The Asia Pacific region dominated the market with a revenue share of 50.6% in 2022. The growing population, large-scale digitization, availability of affordable power banks, and penetration of e-commerce in the electronics industry are driving their use in this region. The Asia Pacific regional market is expected to witness a significant gain in revenue share over the forecast period owing to the growing number of users of electronic devices and the high demand for e-commerce across various industries. The Covid-19 pandemic had an adverse impact on the market in the Asia Pacific region. Due to the pandemic, China’s output of consumer electronics is dropping. However, regular product introductions by major companies could accelerate sales.

For instance, in June 2020, despite the Covid-19 scenario, Xiaomi released a 30K mAh power bank with fast charge technology. Furthermore, a significant market share in the North American and European regions, the Asia Pacific, and Middle Eastern African regions are yet to experience a proliferation in online retailing and depend mostly on hypermarkets and direct selling. The Asia Pacific regional market is expected to witness the fastest growth rate over the forecast period owing to extensive urbanization and a rapidly growing industrial sector. The developing economies of the APAC region, such as China, India, South Korea, and other Southeast Asian countries, are turning into major global manufacturing hubs.

Key Companies Market Share Insights

The key players, such as Beijing Xiaomi Technology Co., Ltd.; Microsoft Corporation; and Sony Corporation, are concentrating on undertaking strategies, such as new product launches, to deliver improved devices to their customers and extend their business worldwide. For instance, in May 2022, Zendure, a U.S.-based power bank manufacturing company introduced SuperMini GO, a wireless power bank with magnetic docking that is compatible with MagSafe. The gadget provides up to 15W of wireless power while wirelessly charging Qi-compatible mobile devices, such as phones and tablets. It also magnetically attaches to MagSafe items for a secure connection. Some of the prominent players in the global power bank market include:

  • Ambrane India Private Ltd.
  • Anker Technology Co. Ltd.
  • ASUSTeK Computer Inc.
  • Beijing Xiaomi Technology Co., Ltd.
  • Intex Technologies
  • Lenovo Group Ltd.
  • Microsoft Corporation
  • Panasonic Corporation
  • Samsung SDI Co., Ltd.
  • Sony Corporation

Power Bank Market Report Scope

Report Attribute

Market size value in 2023

USD 17.78 billion

Revenue forecast in 2030

USD 31.06 billion

Growth rate

CAGR of 8.3% from 2023 to 2030

Base year for estimation

How to Build a Power Bank Sharing App: Must-Have Features and Cost

A low battery has become a nightmare along with a weak Wi-Fi signal and a “No internet connection” notification. Power bank sharing startups are appearing all over the world to solve this problem. It’s relatively easy to launch a power bank sharing service and get a return on investment

If you’re interested in launching your own power bank sharing startup, visit our webinar. You’ll learn how to choose reliable suppliers, create a business plan and build a mobile application for your future business.

Power bank sharing market

In the modern world, where people value ownership less than they used to, the sharing economy is becoming stronger each year. People share their houses, clothes, cars, scooters, furniture, and much more. According to PwC, the sharing economy is projected to grow to 335 billion by 2025, with globalization and urbanization being the most important drivers of this growth. They’re also the biggest drivers of the popularity and growth of the power bank sharing market.

According to Chinese research company iResearch, in 2018, the power bank rental industry grew by 140%. In 2020, growth slowed due to the COVID-19 pandemic, but the industry is still expected to grow by 50% to 80% in the coming years. Power banks have become a great item for sharing: startups place stations around a city and cash in on the anxiety everyone has when their battery starts dying in the middle of the day. Power bank rental business is useful for travelers who need Google Maps and for workers who have to take care of tasks around the city and need to charge on the go.

Currently, China is the biggest power bank sharing market in the world, with over 150 million users in 2019 according to a report by Trustdata. North America also has a large market that’s expected to grow. Other countries like Indonesia, Singapore, Malaysia and countries in Europe also experience a power bank sharing boom. Large cities like Hong Kong and Dubai often have several competing power bank sharing businesses. The global power bank market was valued at 8.8 billion in 2019, and through 2027, it’s projected to grow at a CAGR of 18.4%. This type of startup is relatively easy to set up, fund, and launch: it doesn’t require as much investment as, say, a car sharing service, and it’s easier and cheaper to maintain. In this article, I’ll tell you about all the ins and outs of a power bank sharing business. You’ll find out what you need to start one, how much a custom application may cost, and how to launch your own startup.

How power bank sharing works

These charging stations have multiple power banks that are charged while they’re docked. A rental power bank station also has its own software that’s connected to the customer-facing mobile app. Through this app, a user is able to locate a station, see how many power banks are available, and check their battery charge.

When a user comes to a station and scans a QR code, the app sends a request to the station, which releases a power bank. Usually, the rental cost is hourly and is charged automatically from an in-app balance that the user needs to replenish.

After the user charges their phone, they should be able to return the battery to any station that has free spots. For this, the user will once again use an app to find the nearest charging station.

A rental power bank station has its own software that’s connected to the customer-facing mobile app

Many apps also encourage users to return lost batteries if they find them around the city. For doing so, they reward users with in-app bonuses on future rentals.

Now that I’ve described the basic user journey, let’s discuss what you need to launch a power bank rental system.

What you need for a power bank sharing business

The whole power bank sharing system consists of four basic elements that you’ll need to invest in:

  • Charging stations
  • Power banks
  • Software for the charging stations
  • Power bank sharing mobile app for users
  • Admin panel

Power bank charging stations. Most startups purchase charging stations from China, which is the largest market. One sharing power bank station costs approximately 100 to 500, though they can go up to 1,000. Stations have different numbers of slots for power banks: the average is 6 to 12. The average power bank capacity is between 4000 to 8000 mAh.

Stations often come with their own software, but it generally needs to be tweaked. You should be ready to invest in software for your charging stations, as you’ll need to customize it for your target market. Software customization includes customizing the location, language, and other nuances.

Power banks usually come in a bundle with the charging station, so you’ll likely purchase them with your stations. However, you need to consider the risks: your power banks may be stolen, lost, or damaged, so you’ll need to invest in their replacement and maintenance.

A power bank sharing app for end users is another thing you’ll need to invest in. This customer-facing app facilitates the whole user journey: finding a station, taking a power bank, paying for its rental, and returning it.

An admin panel is the part of your software’s back end that ties together all parts of your system and allows you to manage users, see statistics on your app usage, and get notified if a station or power bank needs maintenance. You can give your employees access to the admin panel so they can provide support to your users.

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How to create a power bank sharing app

A power bank sharing app gives users access to your service and provides you with a way to communicate with your customers. Let’s analyze what features you’ll need to implement in your app, then discuss the technologies you can use for power bank sharing app development.

Must-have features

Registration and onboarding

Allow your users to register in different ways. It’s a common practice to let users choose between registering via email, phone, or a social media account. Make the registration process as quick as possible: you can request additional information later.

After a user has registered, provide them with a short tutorial on how to use your app. This onboarding process will familiarize users with your app.

Personal profiles

A personal profile usually contains information about the user, payment information, and bonuses, if your app has any. To make the app interface more functional, you can also add settings, contacts and other information into a personal profile. This will save place for more important features on the app screen.

Make sure you put the most important features on the main screen for fast access: features like settings or credit cards can be placed in a personal profile

Payment gateway

Your users should be able to pay for power bank rentals from your app. For this, you need to integrate a payment gateway. We usually advise Stripe, Braintree, or PayPal, but there are dozens of payment providers to choose from. You can go with a local payment gateway that has options suitable for your audience.

Some power bank sharing apps have their own internal currencies or have an in-app balance that the user needs to replenish. This may be the best option, as a payment gateway will take a fee for each transaction, affecting your revenue.

Maps and geolocation

This is one of the most important features in your app, as it allows users to find your power bank charging stations, rent power banks, and return them. You can integrate Google Maps or Apple Maps, depending on the platform, and customize your maps according to your UI style.

It’s important to add a route feature so users can find their way to a station.

Available stations

Available stations should be displayed on the map, and tapping on a station should show information about it: for example, whether it has fully charged power banks. When a user needs to return a power bank, you should show only stations that have free slots.

QR code scanner

A QR code scanner will help your app determine which power bank station a user is at so it can send a request to it to release a power bank.

Loyalty program

To stay competitive and turn your first-time customers into regulars, it’s important to offer more than just your service. A loyalty program allows users to collect bonuses and use them for future rentals.

You can also gamify the user experience to encourage rentals and offer benefits.

Battery return feature

It’s easy to lose or forget a power bank, so make sure you have a separate budget for replacing lost batteries. However, you can reduce their number significantly by encouraging users to return lost batteries to stations in exchange for bonuses.

Technology stack

For a client-facing mobile application, we suggest Flutter as the main technology. Why Flutter? It’s a cross-platform framework that allows you to create a single app for Android and iOS while being very close performance-wise to high-quality native technologies.

This makes Flutter a perfect option for developing a power bank sharing app. Its high performance and widgets allow you to get a smoothly working application fast.

Using Flutter speeds up development by 150% compared to the time you’d spend developing separate apps for both Android and iOS.

For the back end of your power bank sharing app, we suggest these technologies:

MQTT, or Message Queueing Telemetry Transport, is a lightweight network protocol that’s widely used in IoT app development to transport messages between devices. This is a protocol that power banks use to communicate with servers and that allows you to see power bank information in an admin panel.

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Steps for creating a power bank sharing app

Now let’s talk about the steps you need to take to launch a power bank sharing app.

Step 1. Choose a software development company

If you want to outsource mobile app development to save money on marketing or hardware, you’ll need to choose a reliable vendor — and it’s important that they have experience in creating a power bank sharing platform. We advise you to interview 3 to 10 companies and choose the one you’re most comfortable communicating with.

Step 2. Create a technical specification

At this point, you don’t need anything but a vision for your startup: the rest will be taken care of by a business analyst who extracts requirements from you during an interview and finds out what features you’ll need to achieve your business goals.

After the goals are clear, your business analyst should create a technical specification with wireframes, a user experience design, and a detailed estimate. This is the main document for your project that will guarantee you get exactly what you expect.

Often, during the discovery phase, the designer also creates a concept design for your app.

Step 3. Choose a power bank sharing station supplier

There are lots of suppliers of power bank stations, and it’s important to choose one before you begin app development, as you’ll need to develop an app that’s compatible with your stations. We can help you choose the most reliable vendors that provide stations at a fair price.

Step 4. Develop and launch an app

After all that is set, it’s time to develop your app. Programmers will set up the environment and servers, create the architecture for your app, and develop your app according to the technical specifications. Quality assurance usually happens simultaneously with the development process so that it’s easier to notice any flaws and fix them right away.

If you choose Flutter for development, your programmers will need some time to adjust the app for each platform and then release it according to the app store’s policies and requirements.

Step 5. Maintain and support your app

After the release, you’ll still need to spend time and money on support, so you should include it into your power bank rental company expenses. Maintaining an app includes updating it to run on the latest operating system versions, fixing any inconsistencies, updating third-party services and libraries, and so on.

Maintenance is crucial if you want your app to stay relevant and get positive reviews on the app stores.

Wrapping up

Power bank sharing is a great business opportunity that doesn’t require massive investment, unlike other sharing economy startups like carsharing and scooter sharing. To launch a power bank startup, you’ll need to:

  • Create a power bank rental business plan
  • Choose a power bank station supplier
  • Purchase power bank stations
  • Choose an app development vendor
  • Create an application for users
  • Create or customize a station app
  • Arrange locations for stations
  • Set up customer support
  • Plan and launch a marketing campaign
  • Maintain and support your equipment

At Mobindustry, we have experience launching power bank sharing applications. You can trust us with both software development and business recommendations. If you want to learn more about our expertise, download our presentation on launching a power bank sharing business and contact us for a preliminary estimate.

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The Best Portable Chargers and Power Banks for 2023

Is your phone, tablet, or laptop typically in the battery red zone before the day’s end? These portable chargers and power banks give you the most boost when you’re out of juice.

I love portable technology—if you can put it in a or a bag, I’m probably into it. I’ve covered phones and tablets of all shapes and sizes, and reviewed everything from game consoles to laptops in my decade-plus career. Prior to joining PCMag, I wrote articles for Android Authority, How-To Geek, MUO, New Atlas, Tom’s Hardware, and plenty of other tech publications.

Apple MagSafe Battery Pack (Credit: Steven Winkelman)

Watching your phone or tablet steadily run out of power when you’re nowhere near an outlet is stressful. Fortunately, third-party portable batteries are available in many sizes and capacities. Some power banks offer fast charging, wireless charging, built-in cables, AC adapters, and LED flashlights—and even the ability to jump-start your car. Regardless of your budget, you can find a portable charger that keeps your device going when your battery icon starts to dip into the red.

But with so many options to choose from, how do you know which one is right for you? Read on for our tips, followed by the most important points to consider as you shop.

Recommended by Our Editors

Best Affordable PD Power Bank

Anker PowerCore Slim 10000 PD

Why We Picked It

Despite its reasonable price, the Anker PowerCore Slim PD 10000 offers high-end features like USB Power Delivery for fast charging, as well as both types of USB ports.

Who It’s For

This 10,000mAh charger doesn’t have the highest capacity, but it’s more than enough for people who need just a little extra power throughout the day and don’t have the patience for slow charging speeds.

Best Ultra-Portable Power Bank

Anker 321 Power Bank (PowerCore 5K)

Why We Picked It

A huge battery capacity is convenient, but sometimes you need a small device that you can carry around without a backpack. The 5,200mAh Anker 321 Power Bank fits that need perfectly, especially because it offers both a USB-A and USB-C port.

Who It’s For

This is ideal for people who care more about portability than capacity. It won’t charge your phone multiple times, but it can still get you through a long day.

Best for Charging Laptops

Anker 737 Power Bank

Why We Picked It

The Anker 737 features 140W output, which means it can charge bigger, more power-hungry devices like a laptop just as effortlessly as it can juice up a phone or tablet.

Who It’s For

If you often need to charge a laptop when you’re nowhere near an outlet, this 24,000mAh backup battery can lower your stress levels. It’s more expensive than other options on this list, so people who tend to charge smaller devices like phones or tablets are better off with the more affordable choices.

Apple MagSafe Battery Pack

Why We Picked It

True to its name, Apple’s MagSafe Battery Pack is notable for its MagSafe support. You can simply stick it to the back of your phone to charge it wirelessly.

Who It’s For

If you need to keep your iPhone running while away from home, you won’t find a more convenient solution. People with older iPhones (before the iPhone 12) need to look at other options, though, as MagSafe isn’t supported.

Best High-Capacity Power Bank

Mophie Powerstation XXL

Why We Picked It

The Mophie Powerstation XXL does it all—it has a considerable 20,000mAh capacity, 18W PD charging, and both USB-A and USB-C ports.

Who It’s For

If you’re looking to recharge a phone or tablet several times on the go (and quickly), this is a top choice. The only drawback is that it doesn’t support larger devices like laptops.

Most Durable PD Power Bank

Otterbox Fast Charger Power Bank

Why We Picked It

Many people know Otterbox for its durable phone cases, but the company is now bringing that expertise to the world of power banks. In addition to its strong build quality, the Otterbox Fast Charger Power Bank has all the key features you need, such as fast charging with PD, both types of USB ports, and several options for battery capacity.

build, power, bank, sharing, must-have

Who It’s For

If you are worried about damaging your backup battery when you travel or commute, this is one of the safest bets. It also comes with a limited lifetime warranty.

Best Solar-Powered Portable Charger

QiSa Solar Charger

Why We Picked It

The QiSa Solar Charger can use the sun to recharge itself, supports both wired and wireless charging, and even has a built-in flashlight. Best of all, it offers a massive 38,800mAh capacity.

Who It’s For

If you spend a lot of time outdoors, this is among your best choices for keeping your devices running while off of the grid. In other words, it’s camping approved.

What Size Battery Do You Need?

On the.friendly front, most smaller batteries have a capacity of around 5,000mAh, which is typically enough to top up most phones once.

Meanwhile, a 10,000mAh battery can give today’s flagships two full charges. A 20,000mAh battery can charge a flagship four times, or two phones two times. Some power banks have enough juice to power laptops. Of course, a higher capacity often translates to a heavier, larger, and more expensive battery.

Most companies advertise how many times their products can recharge popular phones, but if you want to calculate that number for yourself, RAVPower has a useful guide (Opens in a new window) that can give you an estimate.

In the end, it’s best to assess your typical needs before buying. If your phone hits the red zone by mid-afternoon and you only need enough juice to get you to the end of the workday, a 5,000mAh battery should be plenty.

What’s the Difference Between Power Input and Output?

You’ll find three types of ports on today’s portable batteries:

Generally speaking, you charge the battery itself via micro USB or USB-C (input). Some batteries charge faster than others and USB-C charges much faster than micro USB.

Nearly all batteries include a standard USB-A port (output). This is for plugging in USB-A-to-micro-USB, USB-A-to-Lightning, or USB-A-to-USB-C cables for charging your iPhone or Android device.

Some batteries include built-in output cables and these generally have micro USB, USB-C, or Lightning connectors.

The most important thing to do is to match the battery’s output to your phone’s input. For example, if you have an iPhone, be sure the battery has its own Lightning connector or supports USB-A-to-Lightning or USB-C-to-Lightning cables.

Larger batteries with higher capacities might include a multitude of ports to support input and multiple outputs at the same time. You may see two USB-A and two USB-C ports, for example, though micro USB ports are becoming less common.

If you picked up an iPhone 13 or iPhone 14 and were surprised by the lack of an included wall charger, see our article on charging your iPhone.

What Is Fast Charging?

Another factor to consider is how quickly a power bank can charge your device. Battery output is measured in voltage and amperage. Amperage (or current) is the amount of electricity that flows from the battery to the connected device, while voltage is the amount of potential energy. Multiplying volts by amps gives you wattage, the measure of total power. To make devices charge faster, most manufacturers either vary the voltage or boost the amperage.

Today’s devices support a wide range of Rapid-charging technology, such as Qualcomm QuickCharge, USB Power Delivery, or proprietary fast-charge systems.

Quick Charge works by increasing voltage rather than amperage. This standard typically allows you to charge supported phones to 50 percent capacity in 30 minutes, which is especially helpful when you need power in a pinch.

Power Delivery is a newer protocol in which two compatible devices negotiate on the fastest charging option available based on the charger, cable, and circuitry. It also allows for power to flow both ways.

The most common devices (Apple iPhones and Samsung Galaxies) support charging rates of 27W and 45W, respectively. It’s best to look for batteries that can support charging in that range.

Is Pass-Through Charging Safe and Useful?

Pass-through charging is another feature to consider; with it, you can charge devices and the portable power bank simultaneously. That’s convenient if both your phone and backup battery are running on empty. You shouldn’t encounter any safety issues if the manufacturer of the portable battery you buy advertises pass-through charging as a feature, but the power output might change in this mode.

build, power, bank, sharing, must-have

How Does Wireless Charging Work?

Wireless charging has become popular because it allows you to power up compatible devices without a cable. Qi is the dominant standard for compatible Android phones (up to 18W) while Apple iPhones rely on MagSafe charging (up to 15W). iPhones will charge wirelessly on Qi chargers, but only at 7.5W.

Some battery makers have built Qi or MagSafe-compatible wireless charging into the surfaces of their portable batteries. Such batteries mean you can leave the cables at home.

Should You Buy a Battery Case Instead of a Power Bank?

If you find that you often forget to carry your backup battery when you need it most, you should consider a dedicated battery case instead. These combine the portability and protection of a case with additional battery capacity to keep your phone topped off at all times.

There are several drawbacks. First, they have limited additional capacity on board. Second, they are limited in terms of the number of phones they support (mostly just iPhones, Galaxies, and Pixels). Third, you can’t charge much else with them.

The Best Wireless Chargers

Why fumble around for a charging cable when you can rest your phone on a wireless charging pad? Whether you’re an Android user or an iPhone fan, check out our roundups of the best wireless chargers and the best MagSafe chargers to help you cut the cord.

Steven Winkelman contributed to this story.

The best power banks 2022

Choosing a power bank can be a minefield. There are cheap ones, pricey ones, and sometimes you’re paying simply for a name – but there’s a lot more to finding the perfect portable charger than looking at price alone.

Some other things you might consider include speed, both in charging your connected device and recharging the bank when it empties. Capacity is important, too: it needs to be high enough to get your through the day with juice to spare – even share – without weighing down your or bag.

Ports and connections matter, too. What are you charging? A phone, a laptop, a watch? The number and range of ports is important, and if you want to avoid carrying multiple cables then you could look for a version with built-in cables or wireless charging.

While we care about design, it’s actually much lower on our priority list than the things we mention above – unless, of course, we have need for a particularly rugged model or something that supports solar charging because we’re going to be away from mains power for an extended period. That’s not to say we won’t appreciate added extras such as an LCD screen and waterproofing – don’t you want the coolest and most convenient power bank you can get for your money?

These days, it’s even possible to rent power banks as and when you need them (check out ChargedUp). Mind blown. To ensure you get the very best power bank for your needs, whatever that looks like, read on for more detailed buying advice below our chart.

Best power bank reviews

Zendure SuperMini X3 – Best 10000mAh Power Bank

The Zendure SuperMini X3 certainly isn’t the cheapest 10000mAh power bank around, but it makes up for that in specs.

The headline is the 45W USB-C PD charging – for both input and output. That means you can re-charge the power bank itself in just an hour or so, but also that this is fast enough to meet the max charging speeds on most Apple and Samsung phones, and can even keep many laptops running.

The same port also supports the PPS standard at up to 33W speeds.

There are also two USB-A ports, one at 18W and another at 15W, and you can use all three ports simultaneously with 15W speeds from each.

Throw in the small LCD display to report battery life and the light and compact design (in a range of four colours, no less) and it’s easy to see why you might want to spend a little extra for the SuperMini X3.

Charmast 10,400mAh Power Bank – Best Value Power Bank with LCD

There was a time when power banks with LCD displays were rather expensive, but have now come down as the screens filter through to even affordable models like this.

The power bank also has three outputs, which will come in handy if you have multiple devices to charge. There are two full-size USBs, plus a USB-C PD port that can act as both input and output, and all three support 18W Quick Charge – although only one at a time.

build, power, bank, sharing, must-have

On the side is an additional Quick Charge 2.0-compatible Micro-USB, which can also be used for charging the bank. It will charge in about 3.5 hours with a Quick Charge/PD adapter, but about 5.5 hours with a standard 10W charger.

The downside of the design is that it’s a bit bigger than many of the super-slim, similar-capacity models on the market. This Charmast is roughly the same width as a phone, but a little shorter and a fair bit chunkier. It weighs in at 228g, which you may decide is better suited to a bag than your

Charmast supplies a soft mesh carry case and a short USB-A to USB-C cable in the box, a nice touch.

Zendure SuperMini Go

  • Interesting camera-inspired design
  • Supports 15W wireless charging
  • Strong device support
  • Available only via IndieGoGo (for now)
  • LCD is a little dim and can be difficult to read

The Zendure SuperMini Go is something a little different: a power bank that tries very hard not to look like one.

Zendure’s design is inspired by classic cameras, which is if nothing else a fun way to incorporate the large ring required for wireless charging – which here sits right where a camera lens would be. Instead of a viewfinder, there’s a rear LCD display to show battery percentage – though be warned that this is quite dim and hard to read.

It’s available in silver and black finishes, along with our more out there ‘Sunset Cyan’ gradient.

The SuperMini Go isn’t all about looks though, and it has some solid specs to match. The total capacity is 10,000mAh, and in addition to 15W wireless charging (with a magnet to keep phones steady) there’s 20W USB-C charging and 22.5W USB-A charging.

Compatibility is impressive too – not only will this work with both iOS and Android devices, but the ‘X-Charge’ mode is capable of topping up lower power devices like wearables and headphones, which not all power banks support.

The SuperMini Go is available now for backers on IndieGoGo with discounted launch pricing from 44 (down from an official price of 69), but with Zendure’s track record it’s very likely this will be in stores including Amazon before long.

JIGA 30,000mAh Power Bank – Most Versatile Power Bank

JIGA is a new name to us in terms of power bank tech, but its 30,000mAh power bank is interesting for a number of reasons – and not least the huge capacity, which will be some comfort on trips away from mains power.

While it’s something of a throwback to power banks from a couple of years back, with its built-in LED flash (certainly useful for camping trips) and durable but plasticky design, it also takes us back to the days where you didn’t have to sacrifice ports for portability.

It’s surprisingly small for such a high-capacity bank, but it’s more bag- rather than.friendly.

The JIGA has USB-C, Micro-USB and Lightning inputs, allowing you to fill its battery using whatever cable you have to hand. It’s a shame that the USB-C port doesn’t also work as an output, but there are three full-size USB-A outputs, each rated at 10.5W.

This isn’t the Power Delivery speeds we’re becoming increasingly familiar with today, but it’s plenty fast for charging a phone (or multiple phones).

If all you need is a healthy stream of power to keep topped up a number of mobile devices, this JIGA power bank will be a very handy device to have around.

Anker PowerCore Essential 20,000 PD – Best 20,000mAh Power Bank

Hailing from Anker, a respected brand in the power bank market, this 20,000mAh portable charger represents very good value at this capacity.

The 345.5G Essential is a black plastic brick, though relatively compact for the amount of power it can hold. It has a textured top surface that improves grip in the hand, as well as the overall appearance.

We’re pleased to find support for Power Delivery, but do note that it’s only up to 18W, and therefore not likely to be sufficient to charge a USB-C laptop. Still, for quick-charging a phone or tablet, this is a useful device.

A full-size USB output that uses Anker’s PowerIQ smarter charging algorithm is joined by a USB-C port that is both input and output. On top is a power button with four integrated LEDs that reveal remaining capacity, and you can use this to enter a trickle-charging mode suitable for smartwatches and earbuds.

A USB-C to USB-C cable and soft mesh carry case are provided in the box, which is a nice touch.

Anker PowerCore III 10K Wireless – Best Wireless Power Bank

The Anker PowerCore III 10K Wireless is a Qi wireless charger with a special feature: you can use it as a portable power bank, too, which can be super handy.

You can use it at home or work plugged in, and carry it around with you for wired or wireless charging when you are away from a power socket. Because it’s wireless, there’s no need to carry a cable around with you.

As the name suggests, the PowerCore III 10K has a decent sized 10,000mAh battery, which should offer at least three charges from the power bank before it needs recharging itself.

The wireless charger is rated at 10W. Place your device on the centre of the circle. We didn’t find the placement too sensitive, as some wireless chargers can be. It’s not auto-start, though – as a power bank it requires you to push the button first.

You can also charge from the two USB-A ports at one end – at a total of 18W, so charging two or three (one wireless, two wired) devices will split that power output.

Anker PowerCore Magnetic 5K – Best MagSafe Power Bank

This portable wireless charger is one of the best accessories you can get for your iPhone.

In essence, it’s a 5,000mAh palm-sized power bank that will charge your compatible iPhone simply by snapping it onto the back with MagSafe.

It works through some cases, charges over USB-C, comes in a range of colours and, even if you don’t have MagSafe, can be used to charge almost anything via cable.

A handy set of LEDs indicates how much charge the PowerCore has remaining.

Moshi IonGo 5K Duo – Best Design

It’s expensive, but you’ll pay out for the IonGo 5K Duo from Moshi if style is as important to you as is functionality.

Almost identical in design to the IonGo 5K before it, but here with both USB-C and Lightning cables built-in (hence the name Duo), the Moshi is an undeniably cool-looking power bank that comes tucked away inside a vegan-friendly soft leather case with a magnetic clasp and an anodised aluminium faceplate.

The additional cable means it’s now suited to Android as well as iPhone users, although as before this is Made For iPhone-certified.

This is a truly premium device with a colossal 10-year warranty going a long way to account for its higher asking price. It’s also possibly the dinkiest 5,000mAh power bank we’ve seen, suggesting there are some serious high-tech components inside.

At this capacity, expect a full charge for any Android phone, and potentially two for iPhone. Moshi claims the bank will also retain that power for up to 27 months when left unused.

Charging is up to 15W over USB-C and 12W over Lightning. Use Lightning and USB-C together and you’ll see slightly slower charging speeds, with a max total output of 3.4A (17W).

You can also use the USB-C cable for recharging the bank, again up to 15W. Better still, the Moshi supports passthrough charging, allowing you to charge both it and a connected device at once, but given that there’s no separate input here that’s going to work only with iPhone.

The Duo is currently out of stock at Amazon, but you can still pick up the iPhone model.

Chargeasap Flash Pro / Flash Pro Plus – Fastest Charging Power Bank

  • Unbeatable recharging speed
  • High-capacity (25,000mAh)
  • Range of outputs
  • 5-year lifespan
  • Expensive
  • Bulky and heavy
  • Attracts fingerprints
  • No charger or cable supplied

These graphene-composite power banks are able to charge cooler than ordinary lithium-polymer batteries, and thus can do significantly faster: you’ll get to 80% of these 25,000mAh batteries in just 45 minutes.

In addition to this there is a healthy smattering of ports, with three USB-Cs running at 100W, 60W and 20W, a 50W USB-A that supports Quick Charge 3.0 and SVOOC, plus wireless charging. You get a 15W MagSafe pad and a 5W Apple Watch charger in the Flash Pro Plus, and a 15W Qi charger in the Flash Pro.

Down sides include an expensive price tag, and a bulky, heavy design, but for sheer performance and functionality the Chargeasap banks are among the most capable we’ve ever tested.

FAQ

What capacity power bank do I need?

Don’t fall into the trap of thinking a 3,000mAh power bank will give your 3,000mAh battery smartphone a full charge, and that a 9,000mAh power bank will charge it three times. No portable charger runs at 100% efficiency. In truth, most average between 60- and 70%, with the best-performing models able to reach 80- or 90%. Wireless charging models may be less efficient still.

To work out what capacity bank you need, first check the spec of the device you want to charge to find out its battery capacity, then decide how many times you want to be able to charge it. For a rough estimate, calculate Connected device battery capacity x Number of recharges x 1.6 = Minimum power bank capacity you should look to buy.

As a rule of thumb, a 5,000mAh bank is a single-charge device, 10,000mAh hits the sweet spot between capacity and portability, and you want to look for closer to 20,000mAh for a laptop. We’ve got some of those high-capacity power banks here – just don’t try to stuff any of them in your !

How long does it take to recharge a power bank?

The time required to recharge a power bank will depend on its capacity, what you are using to recharge its battery and whether or not it’s empty.

For the fastest charging you should look to the new breed of power banks that support graphene technology and charge over a DC input (such as the Chargeasap Flash Pro – a 25,000mAh bank that can get to 80% in 45 mins and 100% in 70 mins), but these tend to be pricey.

For mainstream power banks, the fastest you’ll find is a USB-C inout/output that supports Power Delivery. This standard now goes up to a maximum of 240W, but in portable chargers you should expect to find an 18W port. Using such a port, the average 10,000mAh power bank might recharge in 2-3 hours from empty.

The cheapest models still tend to charge over Micro-USB, usually at around 10-12W. Avoid 5W power banks like the plague unless they are very low in capacity or you’re not in a rush.

What is passthrough charging?

Passthrough charging allows you to simultaneously charge devices connected to a power bank and the power bank itself. It’s a very handy solution if you are short on mains power outlets and need to get multiple devices charged up overnight, for example. However, not all power banks support it, so be sure to check the spec of your portable charger before you buy.

How do I know how much power is left in my power bank?

Assuming you know how much capacity it had when full, you can work out how much power remains either through a series of LEDs on the casing (usually activated by plugging in a device to charge or pressing a button on the side), or via the LCD if your power bank supports one. LCDs are preferrable, because they give a more accurate readout, particularly when it comes to higher-capacity power banks.

What are GaN power banks?

GaN is short for gallium nitride. It requires fewer components than traditional silicone chargers, which means power banks that use the technology can be less bulky and more efficient. If portability is your primary concern, then as well as considering the power bank’s capacity you should also look for one that uses GaN.

What charging speed should I look for in a power bank?

The first power banks on to the market ran at 5W, which is the same speed as the original iPhone chargers (aka slllllloooooowwwww). We wouldn’t recommend anything below 10W these days. This speed is known as ‘fast charging’, and it’s still rather common in cheaper models, but it’s not really the fast charging we’ve become accustomed to today. So many of the latest smartphones now support super-fast wired charging, and it seems crazy not to buy a portable charger that supports that top speed if possible.

The standard your phone uses to achieve its top charging speeds is important here. Some have proprietary technologies that work only with accessories manufactured and sold by that company. Some offer fast charging through Quick Charge or Power Delivery. Some support neither Quick Charge nor Power Delivery, but do support protocols such as PPS (Programmable Power Supply) or SCP (Super Charge Protocol). Make sure the portable charger you buy matches the fast charging standard supported by your phone.

The term Power Delivery does not in itself denote a performance rating. It could be capable of delivering anything between 18W and 240W. This is particularly important if you’re looking to charge a USB-C laptop – anything under 30W won’t cut it, many laptops will refuse to play ball below 45W or even 60W, and some larger laptops might require 90W. You will need to check the spec of your laptop to know what speed it requires.

At the other end of the scale, if you need to charge a low-power device such as a smartwatch or a pair of wireless earbuds, look out for a power bank that is certified for low-power devices. Many of those that are not will simply cut out when you try to charge these devices, because they aren’t able to detect a significant drain on the battery.

Power bank manufacturers rarely provide the speed of their outputs in watts. Instead you’ll see a rating in amps, which you multiply by the voltage rating (usually five) to get the rating in watts. So 2A x 5V = 10W.

What is Power Delivery?

USB-C and USB PD are often confused, but the important thing to remember is that USB-C is a reversible connection type, while USB PD is a power delivery specification, overseen by the USB Implementers Forum (USB-IF) and often expressed simply as ‘PD’. With version 3.1 of the specification, Power Delivery is able to carry up to 240W of power plus data over USB-C (previously limited to 100W), but devices that support Power Delivery can range from 18W right up to 240W.

What is Quick Charge?

Quick Charge is a Qualcomm fast-charging protocol that runs on the Snapdragon processors we see inside many smartphones, hence it has become commonplace in the mobile market.

The latest version is Quick Charge 5, which operates at up to 100W and supports USB PD PPS. However, while they are often seen together, Quick Charge and Power Delivery are not the same thing.

Quick Charge 5 is a massive jump up from Quick Charge 4/4, more efficient and able to run cooler and safer, and Qualcomm says it can get a device to 50% in just 5 mins. It is backwards-compatible with earlier versions of the protocol, including 18W Quick Charge 2/3, which are still very common in power banks.

Which outputs should I look for in a power bank?

The type and number of outputs you will need on a power bank depends entirely on what device or devices you want to charge. Pretty much all power banks have a full-size USB output that you can use to plug in your own cable, but it’s not always going to be the fastest way to deliver a charge to your device. You’ll also find USB-C and Lightning outputs, magnetic wireless charging pads and AC outlets if you shop around. Some power banks even have built-in cables to stop you needing to carry around your own, though you will still need one handy to recharge the power bank itself.

Why is the maximum output of a power bank important?

Some power banks have multiple outputs for charging your connected devices, but few power banks are able to simultaneously support all of them at the top advertised speed. Watch out for those that have a lower maximum output than the sum of all ports together. Also be wary of those that have multiple outputs but a very low capacity – these aren’t really designed for plugging in multiple devices, only to be versatile.

What happens when my power bank is more powerful than my connected device?

There is no need to worry about plugging devices into ports that are capable of delivering more power than the device is able to accept, since USB devices will draw only the power they need. Many power banks include technology that is able to intelligently dole out this power among ports more appropriately, depending on what devices you are attempting to charge (often known as Power IQ or similar).

Can I take a power bank on a plane?

Yes, but it must be in your hand luggage, and if it is higher in capacity than 27,000mAh (100Wh) you will need to check with the airline before flying. Make sure you take it out your bag as you pass through security. If a power bank is damaged then it will not be allowed on the plane as it could become a safety hazard. You should also ensure the specifications are clearly printed on the side of its case, as is the norm.

We’ve put together a range of articles to help you choose the best charging tech for the mobile devices you carry everywhere. You’ll also like:

  • For charging away from home:Power banks for laptops | Travel adaptors
  • Best Wall Desktop Chargers:For phones tablets | For laptops
  • For convenience:Best wireless chargers
  • Best charging cables:Micro-USB | USB-C | Lightning

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