Power bank 90000mah. Power bank 90000mah

Things You Need to Know Before Buying A Power Bank

Back in 2001, the prototype of a power bank appeared in CES. Since then, the power bank market has grown phenomenally and today, you can find hundreds of different brands on the market. There are so many to choose from, with capacities ranging from 500mAh to 30,000mAh, single or multiple USB ports, with or without a flashlight, etc. Earlier this year, several mobile phone manufacturers including Xiaomi, Samsung and Nokia launched their wireless power banks, making the market even more competitive.

The choice is bewildering, and it’s not like you can just ‘fish a power bank out of the sea’. Yes ok, there are lots of tips and guides out there, but today we are going to see how the tech gurus make their choice. You might even get a fringe benefit.

What Does A Quality Power Bank Look Like?

The easiest and quickest way to judge the quality of a power bank is to check the quality of its case. What materials are used? How well is it designed? Are there any signs of damage? Is the button easy to press?

A quality power bank should have:

1) A clean and complete surface, nothing out of shape. There should be no signs of mechanical damage, no corrosion on any of the connectors.

2) Clear markings about the power ratings, avoid anything blurry that you cannot read.

3) Make sure any buttons and lights work correctly.

It Should Have These Numbers

Every power bank should have markings which clearly state what the power ratings are. That will help you to understand if it can properly charge your phone or not.

1) The basic information should be illustrated on the product or in the user manual; this usually includes the capacity, model number, product type, manufacturers’ information, etc.

2) The Rated input voltage/current and the output voltage/current information is fundamental. But what do these numbers mean? The rated input tells you the standard voltage that the power adapter can connect to so that it can charge the power bank.

If you lose the original power adapter, you could buy a third party one that matches instead of the original. The rated output has to match with the output voltage of the original power adapter for your phone. It’s not recommended to charge your phone with a power bank that has different voltages; otherwise, you may well damage your phone.

3) How many times can the full power bank charge my phone? That’s the question a lot of you will want to know. Usually, that sort of information is not written on the power bank, but with rated capacity and cell/battery rated energy, you can do the math yourself. Don’t worry. We will get to that later.

4) Last but not least, the markings about safety certification are also significant. Most electronics products will bear signs of CE, RoHs and FCC. CE and RoHs are required if the product is sold in the EU; while FCC is mandatory for US market. Safety is somehow guaranteed if you see those marks on the power bank.

You will probably find other markings too, such as environmental information. If you are passionate about these environmental factors, you might want to choose a power bank with a ‘cyclic regeneration mark’ which means that it is recyclable.

Know the Conversion Game of Power Banks

You probably know that bigger capacity is better since it can provide more energy. The thing is, there are two different types of capacity: battery capacity and rated capacity. What you usually see on power banks are the battery capacity. What’s the difference between those two numbers? Let’s read on.

1) How many times can the power bank charge your phone?

If a power bank is marked as 10,000mAh 3.8V (38Wh), that means its battery capacity is 10,000mAh, the voltage of the battery core is 3.8V, and the battery core energy is 38Wh.

power, bank

Rated capacity (mAh): Also known as nameplate capacity, is the least output capacity under the rated voltage and current.

For example, the rated capacity of a power bank is 7,000mAh (TYP5.1V 1A), that means the minimum output capacity of the power bank is 7,000mAh in the charging process with 5.1V and 1A output standard.

Conversion efficiency: This indicates the value difference between the battery core energy and rated capacity.

A power bank has a battery capacity as 10,000mAh; the battery core voltage is 3.8V which will increase to 5.1V when it’s charging a phone. So, in theory, its output capacity is:

10,000 3.8 / 5.1 = 7,450mAh

The rated capacity is 7,000mAh (TYP5.1V 1A), so the rated conversion efficiency is:

7,000 / 7,450 = 93.96%

In other words, the energy conversion efficiency is about 93.96%, with a 5.1V 1A output standard. About 6.04% of the power is lost in the conversion. If you use professional tools to test the rated output capacity, the result would not be too different. The conversion efficiency of most of the power banks on the market are between 80~90%. Therefore, a power bank with 10,000 battery capacity has about 6,000~7,000 rated output capacity.

Charging rate: 7,000mAh (rated capacity of the power bank) / 3,110mAh (capacity of the iPhone 11 battery) =2.25

Therefore, it can charge your iPhone 11 twice at best.

2) How long will the power bank last?

The lifespan of a power bank depends on two things: how well the power bank is made and how much you use it. The number of charge-discharge cycles, decided by the battery core and other vital components, varies amongst power banks. Typically, this is between 300 ~ 1,000 cycles and if you want my advice, you should definitely avoid any power bank that has less than 500 charge cycles.

Say, the power bank has 500 charge cycles, and you fully charge it once per day on average, then how long it will last? We can work that out with the following simple formula:

Power bank lifespan = Charge cycles charging rate / using rate

Where ‘Using rate’ is the number of times you charge the power bank fully in a day.

As mentioned above, for a 10,000mAh power bank, its charging rate is about 2.25. If it has 500 charging cycles, its lifespan is:

500 2.25 / 1 = 1125 days = 3.08 years

But where can these charging cycles be found, you may ask? The test of cycle life involves specific equipment, so for now, we’ll just have to skip that.

But, if you really want to know, ask the seller before you purchase. Even if you don’t get an answer, as you can see from the above example, the power bank will last longer if it has more capacity and a lower use rate. So, it makes sense to go for a big power bank and use it slowly, that way, you should be able to keep for a couple of years if not more.

3) How long does it take to charge the power bank or the phone fully?

Now comes the easy part. The charging time depends on the capacity of the powered device (PD) and its input current which equals the output current of the power sourcing device (PSD)

Charging time = battery capacity / actual input current.

Take a 10,000mAh power bank to demonstrate. Its rated input is 5V/2A, so if you use a 5V/1A power adapter to charge it, its actual input current is 1A=1,000mAh. 10,000mAh /1,000mAh=10 hours. If you use a 5V/2A power adapter, it takes 5 hours to fully charge the power bank: 10,000mAh / 2A (2,000mAh) = 5 hours.

Same for charging the phone. If your phone battery has 4,000mAh capacity, and the maximum output current of the power bank is 2.5A (input current for the phone is 2.5A) then it takes about 1.6 hours to fully charge your phone with the power bank.

How Safe is the Power Bank?

You cannot be too more careful with electronic devices, including power banks. They should have protection mechanisms to prevent any danger caused by electricity.

There are several underlying protection mechanisms: over-current protection, under-voltage protection, short-circuit protection, over-temperature protection and overvoltage protection. This information can usually be found in the user manual.

What’s the Purpose of Power Banks?

By now, you are probably a power bank expert to some extent. But can you count on all those numbers to consider a purchase? Not really. Knowing everything about a power bank can help you decide the quality, but the quality is not the only standard to define a “good” product. It also has to do what you want.

Yes, high-capacity power banks have a longer lifespan and higher charging rate, however, a high capacity also means a bigger size. Do you want to carry a bulky phone power bank in your small bag? Some of you will be shaking your head. If you want to carry an emergency power supply for your phone when you are out shopping, then a small-sized power bank is best. However, if you are a selfie addict, an extra 30% energy from the power bank may not be enough for your day out. You see, everyone has different needs.

Therefore, the first step to select a power bank is to figure out what kind of power bank you want, then compare power banks of the same type with what you’ve learned above.

If you happen to be looking for a power bank for an emergency power supply, check out this recommendation –

PITAKA MagEZ Battery Pack, a MagSafe compatible wireless charging power bank.

The MagEZ Battery Pack is a perfectly formed, small-sized, wireless power bank with 4000mAh capacity that can provide an additional 60% energy for your iPhone 14, perfect for your everyday carry and emergency use. With magnets embedded within, it matches flawlessly with MagSafe phone cases. It can auto attach and align with your iPhone 12, iPhone 13, and iPhone 14 series, safely and securely.

importantly, the MagSafe battery pack is compatible with our MagEZ Slider, a multi-device charging station that can work as a phone stand and charges your phone and Airpods. With the Slider, you can slide the power bank in the dock when it’s not used, so you won’t misplace or forget to charge the power bank anymore.

In conclusion

You don’t have to be a tech guru to select what you want but, you should know the essential tech behind a power bank if you are going to buy one. Don’t be fooled by the salesman, do your research and you have a bigger chance to get a power bank that’s worth it. Nothing could go amiss.

Review: Anker PowerHouse 120,000mAh Power Bank

There are just a few of these massive behemoths, but this Anker PowerHouse is a portable charger that offers charging capabilities that you’ve probably never heard or even experienced before.

It brings all the facets of many charging electronics together into one mega charger. It has a V12 Outlet, an AC Outlet, a DC Outlet, and 4 PowerIQ USB charging ports.

power, bank

When you lay on the 120,000mAh of power capacity, this thing is powerful, and it’s going to be useful for many charging needs, whether it’s for recreational or serious needs.

Similar Portable Power Stations:

Power Capacity:

It’s massive, just absolutely massive. The power capacity of the Anker PowerHouse starts with a power capacity of 120,000mAh, and well, that very large power capacity can change very drastically. This is because the PowerHouse has LOTS of ways to charge from, and that means that there’s a lot of power conversion happening.

So let’s take a sec to take a look at the ways to charge with this power bank:

Of course, if you’re getting the PowerHouse, then you’re most likely going to be using the more powerful charging options that aren’t the USB charging ports, and that’s going to result in the power capacity going to some changes during conversion.

We know that Anker states just how much charges you’ll be able to get from the PowerHouse with certain devices, like powering a Mini Fridge for 7 hours or get 6.5 charges for a Laptop. These are all still near possible.

than Enough Power

However, they’re not exactly real-life applicable because the PowerHouse will lose quite a lot of its power capacity during charging and powering devices. This can result in an Output power capacity of anywhere from 100,000mAh to even 80,000mAh if the PowerHouse is getting heated.

DevicesAnker PowerHouse 120,000mAh Power Bank (Output Capacity = 90,000mAh)Phone CapacityAnker PowerHouse 120,000mAh Power Bank Left Over Capacity after One Charge

What can do you with the Power?

So, for the most part, you’ll have at least 90,000mAh of Output power capacity that you’ll be able to use, and that’s still A LOT of power to use.

As a result, charging small devices like smartphones will be no problem at all as they’ll be able to charge 20 times or more. Charging smartphones like iPhones will provide the best experience since they have smaller battery capacities. From then on, the PowerHouse’s charging powers are still able to stand true.

As you’ll be able to charge laptops and tablets multiple times well. This ultimately comes down to the PowerHouse becoming the one tried and true way to provide reliable power during a power outage or to use it on your camping and hiking trips.

We don’t see much use for the PowerHouse over more traditional portable chargers because otherwise, it would be overkill.

Output Charging:

Let’s go through each of the charging and Powering options that this PowerHouse can offer.

USB Output Ports:

Let’s start with the basics of power bank charging. There are 4 charging ports, and each of the charging ports can Output 5V/2.4A. 2.4 Amps is the Max standard charging speed and will be able to charge most smartphones at their max charging speeds and charge tablets like iPads at their max charging speeds as well.

However, the USB ports don’t have Quick Charge, so Quick Charge and USB-C compatible devices won’t charge at their max charging speeds. Even so, for USB charging, this is great.

Also, the Max Output of the USB charging ports is 6 Amps. So when you’re pushing the 4 USB ports to their limits, the Max Output of each of the charging ports will be 5V/1.5A. We consider this to be pretty good, and the 4 devices that are charging when charging is at their limits will be charged at an “Okay” rate.

DC Outlet:

The DC Outlet of the PowerHouse is mostly where you’re going to be using for your Laptop charging needs. It has an Output power of 12V/10A, which is enough power to charge most Laptops at their max charging speeds.

V12 Outlet:

The PowerHouse even has a V12 outlet, which means you can either use any of your V12 compatible devices with it. With that said, we found that using a car charger is what makes the most sense to use with the V12 outlet because it gives you additional charging ports to use.

Take, for instance. You can use a car charger with 4 charging ports and have 4 more charging ports to use with the other 4 Built-In USB charging ports. As a result, you can potentially make this an 8 port power bank!

That’s lots of charging power being outputted, and the best part is even with 8 devices charging at the same time, these power banks won’t have a problem charging all of them because of their humongous power capacity.

AC Outlet:

One of the most useful parts of the PowerHouse is its AC Outlet, basically like a Wall Outlet. The AC Outlet can power devices up to 160 Watts. This means that you can power devices like Mini fridges, lamps, and any other devices that are of the same power range.

However, once the PowerHouse detects a draw greater than 160 Watts, it will then disengage.

It’s important to remember that even though the Anker PowerHouse can power lots of devices and has a VERY high power capacity, it isn’t exactly a generator. Think of it as an overly powerful power bank with the ability to power small appliances as well.

Input Charging:

It might be hard to believe, but the recharging speed of the PowerHouse is quite fast because it’s recharged through the DC port that is also used as the Input for recharging. When you use an AC Outlet in your house, the PowerHouse can recharge at speeds of 16.8V/7.5A, and this will result in a full recharge within just 6 hours.

It comes with an AC Adapter to recharge the unit.

Size and Weight:

Of course, it’s large. Very large and heavy at that too. This is what you get when you pack the equivalent of six 20,000mAh power banks into just a single pack, and there are also additional charging options that are very powerful.

Great Power with Great Size and Weight

It has a length of 7.9 inches, a width of 6.5 inches, and a thickness of 5.7 inches. We know that it’s ridiculous even to state the size of the power bank, but now you get the idea that it’s large. However, the more important aspect of its design is that it’s cumbersome at a weight of 9.3 pounds.

So yeah, basically holding this is like holding a dumbbell in your hand.

It probably goes without saying, but the PowerHouse charger will be set down and used at nearly all times. Even though it is, in a way, somewhat portable, you’re not going to want to hold this and charge even the simplest of devices like your smartphone.

power, bank

Functional Components:

Even though it might look like it’s complicated to use, this PowerHouse is effortless to use.

Difficult to Create but Very Easy to Use

All of the functional parts are on a single side. Each of the charging options has a button above them to activate that specific piece of charging, so if you want to use the AC Outlet, you will press the AC Outlet power button, and the same goes for the USB charging ports.

Once a power button is pressed, the charging indicator for that area will appear on the Blue LCD screen that the PowerHouse uses also to tell power capacity. Power capacity is told in a percentage manner and is great at giving an accurate reading of the remaining power.

To make the large portable charger more portable, there’s a handle at the top that makes it easy to carry. It even has a soft-touch underside to make sure that when you do carry this heavy power bank, that it’s made as bearable as possible.

Structure and Material:

Dropping it onto hard ground may result in damage, but what matters most is how high up it falls from because the PowerHouse can very well survive falls, bumps, and hits; it just matters more about the severity of those things.


Something this powerful and with this amount of power capacity ought to be as safe as possible, and thankfully it is. This is because the Anker PowerHouse makes use of a Battery Management System (BMS), which is probably a bit of a fancier way of saying that it uses their Multi Safe Protection System.

This allows the PowerHouse to have Voltage-Control, Temperature Control, and many other safety tech precautions that make charging with it highly safe and reliable.


There’s no doubt in our mind that this power bank is reliable. It has an initial power capacity of 120,000mAh which can charge most of the devices that you use daily, like your smartphone, tablet, and Laptop, multiple times over. We don’t even mean 4 times or more; we’re talking about being able to charge those devices into the double digits.

It can even provide power to appliances through its AC Outlet.

Then there are the unreliable pieces that are few and ones that you probably know of from reading this review. It’s really large and very heavy at the same time too. So this isn’t a portable power source that you’re going to walk around with, and that’s it.

The power is all there, so is the reliability and build quality. We’re gonna go out on a limb and say that even though this power bank is large and heavy, the fact that you’re able to take it with you nearly anywhere (Except for Airplanes) is just amazing.



It has a very large power capacity and lots of charging/powering options to choose from. You’ll be able to charge lots of devices many times over, and we don’t mean just your smartphone. It’ll be able to charge tablets and laptops multiples times.

Not only can it charge devices, but it can also power small appliances up to 160 Watts as well.


It’s really big and really heavy at 9.3 pounds. With that said, it’s at least easy to use by pressing a button at the top of each charging option; you’ll be able to start charging from that specified charging area.


Even though it’s really large, the PowerHouse is very strong, and it can withstand some situations that would otherwise damage any normal power banks. Of course, using a plethora of safety tech features makes it highly safe and reliable to use.


The PowerHouse is very reliable for nearly all of your charging needs, a few of your powering needs, and not that great for your portability needs.

Anker PowerHouse 120,000mAh Portable Power Station Specs


The Anker PowerHouse has proved itself to be a mighty portable charger that goes beyond what any other portable charger can deliver.

We honestly find it silly even to call it a “Power Bank” or “Portable Charger” because it goes beyond just that. It has the powering capabilities of a mini generator. So yeah, it’s a mini generator.

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