How to Make a 36,000 Mah Powerbank. Power bank 36000mah

How to Make a 36,000 Mah Powerbank ?

I am waqar In this video I will show how you can Make your own 36,000 mah power bank from dead laptop batteries in just 7 without using any specialized equipments or Knowledge. Cells used in this Project are called lithium ion battery specifically 18650 cells.

1:Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB Module Board https://www.banggood.com/Dual-USB-5V-1A-2_1A-Mobi.

2:Old Laptop Batteries buy those from your local retailer shop or You can Buy new cells from amazon or ebay. about :: 5 (for 10 dead laptop batteries)

Step 1:

The Best way to get lithium ion cells is to harvest them from old dead laptop batteries.

the lipo batteries used in laptops are called 18650 lithium ion cells.

There are 2 way you can get batteries

1:: from your local retailer shop

2:: from online (new cells) beware many seller sell the fake lithium ion cells.

Step 2:

Please make sure that You cut all the 3 series connection.

don’t cut parallel connection (you can cut but i don’t recommend this because it is difficult to solder or spot weld).

Step 3: Identify Good Cells(high Capacity)

This process is very important as it will determine the total capacity of your DIY power bank.

Generally the 3 volt cells are the good ones (This is the simplest way but not the best)

You can use the specialized device like Imax b6 ac to charge and discharge each lithium ion cell and know the accurate capacity.

so. far in this tutorial i will use the Method 1

if you want to know more about Method 2 you can comment below

Step 4:

I think this is the most easy just joint all the harvested 18650 cells in parallel connection.

In simple means all the positive terminal of battery are connected to each other all the Negative terminal are connected to each other,

In the end you will get one positive terminal one Negative terminal.

You can join as many as you want to increase the capacity of your power bank.

Step 5:

and fit the battery pack inside the box.

and leave the Both positive negative Terminal outside the box

Step 6: Buy Dual USB Power Bank Circuit

Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB Module Board

I Purchased this from above You can buy this from anywhere else.

Step 7:

Make Sure the correct polarity while joining the positive negative wires coming from the battery pack.

You can also use some tape or hot glue to fix the circuit on top of the box.

like i use tape to fix it.

Step 8:

Now we are all done just connect your mobile to circuit by USB cable and your mobile is charging.

You have 2 modes of charging in this circuit 1 is normal mode and other one is Fast charging mode.

You Charge this power bank by just any mobile charger

the only thing is that it will take time to charge the whole power bank but ones it is full you are ready for more then week. shown in image 2 of this step.

:: Warning::Please Take Appropriate care while using Lithium ion batteries.

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Комментарии и мнения владельцев

Why did you remove the inductor?

Nice but you could use a BMS to manage each of your cells eventually if one dies it may destroy all of them.

Nice work man and thank you for your trouble.But something is bothering me in your calculations!They don’t seems to be correct.This is not a 36.000mAh powerbank in my point of view, and that is why.

You have 12 cells from DEAD laptop batteries.That means that not all of those batteries is working, some maybe dangerous as well, etc.

But lets say that all are in PERFECT condition.That gives us max of 2600mAh in each battery, since this is the larger batteries out there.So in case that ALL of the batteries was in PERFECT condition, and you have 2600mAh models in there (which is not easy, since most batteries are lower than 2600) you will have 2600mAh 12 batteries = 31.200mAh (far from 36.000mAh)

But lets be kind of. realistic for a moment.Your cells, since they are harvested from dead laptop batteries (lets assume that are in mid condition), they can hold max around 1000-1500mAh in the best case scenario.So you will have around lets say 1200mAh 12 batteries = 14400mAh (really far from 36.000mAh)

And lets be absolutely realistic for a moment!

Your batteries are a mix of mid conditioned and damaged cells, which translates to some damaged batteries having around 100-500mAh and some in mid condition around 1000-1200 mAh.If half of those are damaged we are looking at lets say 250mAh 6 batteries = 1500mAh and 1100mAh 6 batteries = 6600mAh.That gives us approximately a total of 8.100mAh (2 planets away from that 36.000mAh statement).

So. are those batteries indeed 36.000mAh. or not?Am i calculating something wrong?

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Taoxiwave Solar Charger Solar Power Bank 20000mAh Waterproof Portable External Backup Outdoor Cell Phone Battery Charger

  • 32800mAh large-capacity power bank with solar panel helps charge multiple devices simultaneously
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RS Recommends: These Durable Power Banks Keep Your Devices Charged in All Conditions

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Popular on Rolling Stone

With something like a phone case, durability might matter more since you’re often prone to dropping it, or it can take a hit or accidental tumble. And while that stuff still counts with power banks, durability can go a lot deeper, like preventing a power overload, overheating, and risking damage to all your devices.

What Are the Most Durable Power Banks?

Here’s what to know when looking for the most durable power banks to buy online. A durable power should be able to not only charge up multiple devices, but should also be designed for the long run and frequent refueling.

Durability: Waterproof power banks are often the most durable, just by virtue of having to withstand splashes and rain. And while many waterproof power banks are available, they are often more expensive. Think about how much water your battery is likely to be exposed to – if you’ll be kayaking and boating, or even sitting poolside, it’s worth considering anything that meets IP65 requirements on the Ingress Protection scale.

A bank that can hold strong against being crushed (sometimes against a literal ton of weight) or dropped from high up is a more common occurrence, and all of our durable power bank picks are shockproof and drop-proof. Layers of silicone or rubber act as a shock absorber too, allowing your battery pack to survive hard falls on concrete and pavement.

Ports and Recharging: Depending on the number of devices you’re carrying, or other people relying on you and your power bank, the amount of ports is pretty crucial. Two USB outputs is a common standard, but there are plenty of durable power banks available with more, and a little planning now can be beneficial when you need it most.

Power banks also often have a wireless charging feature on top too, just like a charging pad, and though it isn’t as fast as wired, it’ll still charge up a phone when all the other ports are in use. As for recharging the bank itself, this varies, with the smaller ones taking a couple hours, and the heavier duty units taking anywhere from four to 12 hours.

Milliamp Hours (mAh): This is what the energy storage capacity of power banks is measured in, and is calculated from the amount of time a battery lasts when having power drawn from it. The number measures the amount of current, not charge, but a higher mAh will generally be able to charge up your gear more often, though it can also be more weighty and bulky.

Extras: If you’ll be taking this along on some rough activities, consider ones that have helpful extras. A built-in solar charger can be a huge boost when you’ll be away from a power source, as well as a compass, and a bright LED flashlight with an SOS mode. A carabiner clip also securely latches on to anything, making it easy to grab when needed.

Goal Zero Sherpa Power Bank

GoalZero’s products were designed to shine in difficult situations. The company started off with LED lighting and solar paneling, eventually evolving to power sources that can stand up to the most remote and inhospitable places.

And there’s a ton of power packed into this two-pound bank: 110 volts, 100 watts, and a huge 26500mAh battery – the max allowable amount for air travel.

Charging up a laptop is no problem, along with other devices simultaneously. The two USB-C ports can be readily switched to input and output, along with two USB-As, a wireless Qi charger, and AC port. It also works with GZ’s solar paneling as well, and has an interactive OLED screen so you can always view the stats of where you’re at.

Powkey Portable Power Bank

Get hours of power in a tough and rugged unit. Having two 120V AC plugs built right in is a huge convenience here, along with four USB ports, so you’ll never have to go searching for a wall outlet ever again. There’s also a 12V output and 15V spot for solar panel hookup, with easily readable lights that tell you the battery status.

Despite its big and boxy body, it only weighs just around three pounds, and depending on the connected devices, this can last 8-10 hours. Users reported it’s perfect for overnight necessities like a CPAP machine when there’s no other power supply available, or as backup in an emergency when power gets knocked out.

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GoodAaa Solar Power Bank

If you’re heading into the wilderness, say on a hike or camping trip, you’ll want a durable power bank that can withstand the elements. But what about a power bank that can re-fuel from the elements too?

We like this durable power bank, which is able to recharge itself via sunlight thanks to the solar panel (there’s an option to plug it into a wall outlet as well). An emergency flashlight is included too, with dual LEDs to see in the dark.

Clear blue lights tell you how much power remains in this unit, and charging multiple devices at once is no problem. This unit also has a built-in wireless charging pad up top, for all your Qi-enabled devices.

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NOVOO Waterproof Portable Charger

This bank gives you the extra boost of battery needed when you’re outdoors away from a power source, along with being built rugged and ready for drops in mud and water.

The extra-bright flashlight that’s built-in is especially great for camping, and the unit also charges speedily too, filling an iPhone Pro Max to 100% in just over an hour.

Eggtronic Laptop Power Bank

A 45W USB-C port on this power bank is enough to refuel a MacBook Air, and still have enough output for an 18W Quick Charge and a regular 5W USB charge, all simultaneously.

This has an impressive 20,000mAh battery, as well as a really handy LED display that lets you know how fully charged it is.

As always, Einova’s Italian design is sleek, modern, and smooth. The texture on the linen canvas is super-soft, as well as waterproof, and still small enough to fit into a

What’s the Best Capacity for a Power Bank?

So you notice that you use your phone a lot, and the truth is that you need your phone nearly all the time to complete either your professional or personal goals daily. Too many people think that we need to limit ourselves from phones, but the reality is that we rely on them to make life easier. Since the use of them rises, the battery life decreases, and at this point, you may want to consider getting a Power Bank to optimize better the way you function daily.

A Power bank is simply a device that holds energy, and it’s used to charge devices like your smartphone while on the go. You can learn more about power banks here.

Getting a power bank should be well thought out because the power bank you get should match your needs. Are you looking for a power bank to take to the office throughout the week and want to be known as the charging king at work? Or maybe you want a personal power bank that you only use.

Whatever the circumstance, getting the power bank that serves your needs will greatly impact you by serving you. One of the most vital things about a power bank is the capacity of the power bank. Do you want to spend money on a 20,000mAh power bank? Or perhaps just a 3,000mAh power bank?

What are the Best Lowest Capacity Power Banks?

Let’s think small first. Mini power banks were the beginning of portable chargers, and they’re what made the charging solution so popular as you take this charging device wherever you go. As mini power banks would be able to fit into your. and some in form factors that made it easier to place into your Of course, the equivalent exchange with mini power banks is the low power capacity they would have, with mini portable chargers having 3,000mAh to 5,000mAh power capacities.

Today, there are much fewer mini power banks on the market than there were a few years ago, and that’s because the portable devices that we use now have larger batteries and require more charging power than what mini power banks have to offer. That said, portable chargers with 3,000mAh or 5,000mAh capacities still have their place for charging certain devices, albeit a slim category.

We did pick out a few mini power banks to show what they feature and what charging is like for them. There are mainly two types of mini power banks you’ll find, though, and what would be standard ones that only make use of slower charging because they only use standard USB-A ports; on the other hand, you’ll find mini chargers that have slightly higher capacities and use fast charging.

PowerAdd 5,000mAh Mini Power Bank

This PowerAdd portable charger is a perfect example of a modern-day standard mini power bank done right. The charger has a 5,000mAh power capacity that can charge some phones to full power at least once; however, if we’re talking about modern smartphones such as the Samsung Galaxy S21 Ultra that has a 5,000mAh battery, you can get close to charging the phone. This close to full power charging will be common with most phones these days as many of them are using much larger batteries than a few years ago. As a result, you can’t expect to use this power bank for a few days, and it’s almost always going to require recharging after being used for a single day.

This power bank is simple on the charging side because it only has a single USB-A port with a 5V/2.4A (12W) charge rate, so this power bank does not use fast charging such as Quick Charge, and that can be another downside of mini power banks. Recharging from this power bank is done via a Micro-USB input port with a 5V/2.0A (10W) speed.

Of course, one of the main reasons to get a mini power bank is its size, and the size of this PowerAdd portable charger is tiny with a length of 4 inches and a thickness of 1.1 inches. It has a cylindrical shape that makes it easy to hold or to place into your

PowerAdd 5,000mAh Mini Power Bank Specs

Mini power banks, in general, don’t use fast charging as they’re too small and meant to be a more budget type of power bank. This Xcentz power bank can fast charge most phones on the market because of its use of Power Delivery and Quick Charge, two of the most used fast charging technologies. You can even recharge this power bank at 18W via a PD wall charger.

The other great part is that this power bank comes with a USB-C to USB-C and a USB-C to USB-A cable included in the box. Most mini power banks use a Micro-USB input port for charging and include a Micro-USB cable; however, that tech is obsolete and slow charging, so we’re glad that this Xcentz power bank takes the more modern approach.

Xcentz 5,000mAh Power Bank with PD and Quick Charge Specs

CHOETECH 10,000mAh Power Bank with Built-in USB-C and Lightning Cable

As we mentioned before, mid-range power banks are more reliable, and this CHOETECH portable charger has clear proof of that because it uses two built-in cables. The power bank has a USB-C and a Lightning built-in cable; these are the two most used cables for charging, with the USB-C cable being used for charging Android smartphones, and many other devices such as tablets, earbud cases that use USB-C ports to recharge from or basically any other portable device that can charge via the USB-C. The Lightning cable is for charging iPhones that are still using Apple’s Lightning port.

On top of always having ready-to-use cables with this power bank, both the cables use an 18W Power Delivery charging speed. So you can fast charge most Android smartphones, and you can fast charge iPhones that are also Power Delivery compatible; being able to fast charge with a power bank is great because you can stop relying on the power bank faster. Design-wise, once you’re done charging with the cables, they fit directly into the power bank and are fully concealed. The slim form factor of the power bank enables you to place it into your easily.

This CHOETECH power bank has a USB-C PD port that can only recharge the power bank.

CHOETECH 10,000 B688 Power Delivery USB-C / Lightning Built-in Cable Power Bank Specs

The power capacity of Excitrus portable charger is 9,600mAh, and as we mentioned, most power banks with this capacity don’t feature such high PD charging. With a 45W Power Delivery port, you’re able to charge most USB-C chargeable laptops, and in our case, we were able to charge a Lenovo Flex 5 laptop with the power bank, as well as charge a Microsoft Surface Go tablet at its max charging speed. You may also use this power bank to charge a USB-C MacBook.

Along with the USB-C PD port, the power bank has two USB-A ports, with one featuring Quick Charge 3.0 and the other port has a standard 12W charging speed. The power bank can be recharged via the USB-C PD port, and included in the box is a USB-C to USB-C and USB-C to USB-A cable that lets you start using the power bank right out of the box.

Design-wise, this portable charger is straightforward to take anywhere thanks to its low capacity, as it has a 4-inch length and only a 0.9-inch thickness. Instead of having LED power lights, the charger has an LCD screen that shows the remaining power capacity.

Excitrus 9,600mAh 45W Power Delivery Power Bank Specs

You may think that the wireless charging speed from a power bank is rather weak. Still, surprisingly, the wireless changing rate ranges from 10W for Samsung smartphones to 7.5W for iPhones and 5W for any other wireless charging compatible phones. Additionally, the Aukey power bank has an 18W Power Delivery port and a USB-A Quick Charge 3.0 port. The power bank also has two input ports that you can recharge from, with a Micro-USB port or a USB-C PD port.

Quick Charge Port5V/3A | 9V/2A | 12V/1.5A (18W)

In addition to the built-in cable, this UGREEN portable charger also has two ports, which basically lets you charge three devices simultaneously with the power bank if you want. It has an 18W USB-C Power Delivery port and a USB-A Quick Charge 3.0 port, so you’re getting fast charging no matter what port you’re using. So with mid-range power banks, you get to have built-in cables and fast charging ports, and it all comes into a small form factor that can fit point your as this UGREEN portable charger is nearly the same size as a mini power bank such as the Xcentz mini portable charger that we recommended.

UGREEN PB172 10,000mAh PD Power Bank with Built-in USB-C Cable Specs

What are the Best High Capacity Power Banks?

High-capacity power banks are the most useful types of portable chargers because they feature the best charging experience that portable chargers have to offer. High-capacity power banks are exactly what it sounds like. These chargers have 20,000mAh power capacities or higher; these higher capacities enable you to charge devices to full power multiple times before needing to recharge the power bank.

In addition to having a power capacity that you can use for days, high-capacity power banks also use some very powerful charging that lets you charge most USB-C laptops. Some use AC outlets; However, that gets into portable power station territory.

The trade-off with having more charging power and a larger-sized power bank is worth it in most cases because even a high-capacity power bank is not too large or heavy.

RAVPower 20,000mAh 18W Power Delivery Tri Output and Tri Input Power Bank

This RAVPower portable charger is a great example of why high-capacity power banks are one of the best to own. The charger has a 20,000mAh power capacity that can charge most phones to full power about two times or more. A high capacity such as this can also be useful for charging tablets to full power at least once.

The power bank also does a great job with its charging power because it has three output ports and input ports. There are two USB-A ports and one USB-C Power Delivery port; one of the USB-A ports features Quick Charge, while the other one has a standard 12W charging rate USB-C Power Delivery port has an 18W charging speed.

You also have three ways to recharge this power bank, with one being the USB-C PD port that is the fastest way to recharge the power bank. You also get the choice of using the Lightning or Micro-USB input port for recharging, but those are slower than the USB-C PD port. With all this charging power, you also get an LCD that shows that the remaining power capacity and if you’re using fast charging from the Quick Charge 3.0 port.

RAVPower 20,000mAh USB-C PD. Quick Charge Lightning Tri Input Power Bank Specs

Instead, this JIGA power bank has three USB-A ports and three input ports. Each of the USB-A output ports has a 5V/2.0A (10W) charging speed. Recharging the power bank is impressive because you can use one of the three input ports for recharging; one of the input ports is a USB-C port, and the other two are a Micro-USB and Lightning input port.

Overall, this JIGA power bank is reliable for Android and iPhone smartphone users because of its various input ports to recharge the power bank.

JIGA 30,000mAh 3 Output. 3 Input Power Bank Specs

On top of the PD port, if you’re charging from the Power Delivery port and the USB-A Quick Charge port at the same time, then the USB-C PD port lowers its power output to 65W. A 65W PD charge rate is still tons of power, and in our tests, we were still able to charge a Lenovo Flex 5 laptop at its max charging speed even when we were charging two devices simultaneously.

One of the main setbacks for a high-capacity power bank is recharging them, as you always want to make sure that you’re recharging it at its max speed. If you’re not, then it can take a long time to recharge the power bank; thankfully, this one recharges at 60W, but you have to provide your own PD wall charger to recharge it at 60W. This power bank does come with a USB-C to USB-C cable, though.

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RAVPower 30,000mAh 90W Power Delivery Power Bank PB232 Specs

One of the PD ports has a 60W output, and the other one has an 18W output. The 60W port is more useful for charging laptops, and the 18W port is best for charging fast charging smartphones. This power bank also comes with a 45W PD wall charger and a USB-C to USB-C cable that you can use to recharge the power bank at its max speed.

You get tons of power with this Crave power bank, but it’s huge and heavy, you can still take it anywhere you want, but it’s definitely not going to fit into your

Crave Powerpack 50,000mAh 60W Power Delivery Quick Charge Power Bank Specs

That said, plugging in another charger may not be necessary as this MAXOAK portable charger has two USB-A Quick Charge 3.0 ports and a single 45W USB-C Power Delivery port.

Included in the box is a USB-C to USB-C cable and a 30W PD wall charger that you can use to recharge teh power bank at its max charging speed.

MAXOAK 99Wh 100W AC10 Portable Power Bank Specs

It’s gonna depend on which one you get.

Small capacity Power Bank: Focus on sizes in the 3,000mAh to 5,000mAh range because these kinds of power banks are small, powerful, feature a good capacity of power, and are extremely portable to be taken nearly everywhere.

Medium capacity Power Bank: Capacities about 6,000mAh to 15,000mAh are good because they can provide sufficient power to charge your device a few times over. They may also have two ports or maybe more to charge more devices at the same. This is where specialized tech comes in to take advantage of technology like Quick Charge and Power Delivery.

Large Power Bank: Large power banks are in the 20,000mAh or larger range. These power banks can last on one charge for quite a long time, and the anxiety of your power bank running out of a charge is nearly nonexistent because of the absurd large capacity of the power bank. Power banks of this capacity are bigger, and because of that, they will most likely feature 2 or more charging ports and maybe even more than 1 port to recharge the power bank itself. These power banks can charge many devices at the same time and are great for sharing. They will feature the latest in charging tech because the size of the power bank will allow for more innovation.

Conclusion: Power bank capacity will ultimately depend on what you need.

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