Best 20000mAh Power Banks in 2020 Reviews

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A 20000mah power bank will recharge mobile devices, but not all power banks are the same. Here are the top 10 20000mah power banks you should choose from.

Lots of people can suffer from smartphone separation anxiety, but do you also experience “low bat anxiety”? This is when your smartphone runs low on battery power and there’s no convenient electrical outlet nearby that can recharge your mobile device. You can solve this problem easily enough with a power bank, and a 20000mah power bank certainly has enough power to assuage your fears. You may even be able to power your smartphone 10 times over before you’ll need to recharge the power bank.

But just because your power bank has 20000mah available doesn’t mean it’s always the best for your mobile device. There are other factors to consider other than power capacity, and these factors lead to our list of the top 10 best 20000 power banks for 2020. Any of these power banks may suffice for your needs, but we’ve listed them from the good to the best.

List of  Top 10 Best 20000mah Power Banks in 2020

#10 iMuto Taurus X4 20000mAh Portable Charger

 iMuto 20000mAh Portable Charger Compact Power Bank External Battery Pack

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This has 2 USB ports that can charge 2 devices at once, and it can smartly detect your devices so that it charges these devices at the fastest possible speed. As it charges these devices, you have a handy digital display at the front to indicate what percentage of power you have left on your portable charger.

This has numerous safety features, so you can stop worrying about how to go about recharging your devices. This has protection against short-circuit, overcurrent, overvoltage, and overcharging.

This is also easy enough to carry, as it only weighs 14.5 ounces. It’s also comparatively tiny, as it only measures 5.1 by 3 inches, and it’s a little over an inch thick. You can carry it in your pocket easily, though you can take it out to use its built-in flashlight.

#9 GEARONIC TM 20000mah

 20000mah Double USB Ultra Thin Portable External Battery Charger Power Bank Compatible with Mobile Cell Phone

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Even at first glance, you can tell that this GEARONIC TM 20000mah is a terrific option. Aside from the power capacity, it offers a port for smartphones and a 2A port for bigger devices like your tablet. You can recharge this power bank fully in 8 hours, which isn’t a problem as you can do it overnight at home.

A series of lights at the top will indicate when it’s fully charged, and these lights can tell you how much power your power bank has left to offer. This also comes with a nice handy flashlight. It comes with a charging cable, but the seller may not offer a user’s manual.

This is small to fit a large pocket, as it measures 6 by 3 inches and is only 0.4 of an inch thick. You can also just take it out without embarrassment, as the aluminum casing comes in 4 attractive colors. Aside from the more sedate black and silver color options, you can also go with blue, gold, rose gold, or even hot pink.

#8 Tinkon 20000mAh Portable Power Bank Quick Charge 3.0

 Tinkon 20000mAh Portable Power Bank Quick Charge 3.0

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This may come only in either black or white color. But that’s not really a big deal, is it? At least you also get a micro USB cable, an actual user’s manual, a 12-month warranty, and 24/7 email support. This comes with 20000mah of portable power for your mobile devices, which is certainly more important.

In addition, this comes with a couple of Type-C USB ports capable of quick charge input and output. The power bank can correctly identify the devices you’re connecting, and then regulate the output current. This can charge 2 devices simultaneously, and it can find the shortest time for the recharging.

In fact, it’s able to recharge devices using safety measures that you may not find in other power banks. It’s protected from short circuit, over-current, over-voltage, and over-discharge. If a short circuit or overload happens when you’re charging, it will shut down automatically.

Other features include an LED power indicator and an emergency flashlight.

This is portable enough, as it measures 6.6 by 3.3 inches. However, it is 0.9 inches thick and it weighs 17 ounces. That makes it a bit heavy. Still, you can just place it in your pocket and you’re also allowed to carry this when you’re in an airplane.

#7 VINSIC 20000mAh Power Bank, Big Size

 VINSIC 20000mAh Power Bank, Big Size Dual USB Port External Battery Pack for iPhone

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Just how big is this? While it is thin enough at 0.55 of an inch, it measures 6.42 inches by 4.65 inches so it’s a bit on the bulky side. It also weighs 17.5 ounces (more than a pound, or almost half a kilo).

It does look stylish and appealing with its elegant curves, and you have cool colors such as golden, red, dark grey, and silver. It uses a premium aluminum alloy with hard plastic, and it feels smooth when you touch it.

This power bank comes with 2 USB ports that can recharge relatively quickly, and it works with almost all phones and other devices. However, the Samsung S5 is a notable exception. This comes with a USB charging cable, but there’s no iPhone cable.

You also get various safety measures in place. These include protection from short circuit, over-current, over-discharge, over-voltage, and over-charge. There’s also a numerical LED indicator for how much power you have left in your power bank.

#6 ZizoCharge Power Bank 20,000 MAH

 ZizoCharge Power Bank 20,000 MAH Fast Charge Portable Charger External Battery Pack

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This is the largest of the ZizoCharge lineup of power banks, with smaller options for 6000mah and 12000mah. With the 20000mah, it’s not really all that big. It measures 6.3 by 3.2 inches, though it is admittedly a bit thick at 0.9 of an inch. It does weigh 1.15 pounds.

This comes with 2 amps for fast charging, with 2 USB charging ports you can use at the same time. It also has the Shock IQ Technology, which is the set of safety features that include protection against short circuit, over-current, over-voltage, over-discharge, and over-charge. It’s also been tested and found to adequately withstand vibration and impact, as it has a durable polycarbonate shell.

There’s a built-in flashlight too, while you also enjoy a 12-month warranty and 24/7 support.

#5 NexGadget Solar Charger 20000mAh

 Solar Charger 20000mAh, Qi Wireless Portable Solar Power Bank

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If you’re going camping for a few days, you may be worried that your power bank may also run out of juice. Now with this power bank, you have a solar panel that can at least add to the power to extend your ability to recharge your other mobile devices so you can make emergency calls.

Before you go camping, you better recharge this fully first. That doesn’t really take long, as it can fully recharge itself quickly in just 6 to 8 hours.

Once that’s done, you’ll have plenty of power to recharge your mobile devices. This features 2 USB ports and a type-C output, and it can even wirelessly recharge Qi-enabled phones. This means that if you want, you can recharge up to 4 different mobile devices at the same time.

All these features add up to the bulk of the power bank, although it’s not really a problem to carry around. This measures 8.8 by 3.5 inches, and 0.9 of an inch thick. It also weighs 14.9 ounces, but you also have a carabiner attached that lets you clip it to your backpack.

This is tough enough for camping, as the casing makes it shockproof. It is also IP54 rainproof and UP6 dustproof. The power bank also features a flashlight, in case you need it in the dark.

#4 Rolisa Power Bank Portable Charger 24000mAh

 Power Bank Portable Charger 24000mAh High Capacity External Battery Pack with LCD Display

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Okay, so this is not strictly a mere 20000mah power bank, so let’s rename the list as power banks with at least 20000mah. But then with this kind of power available, you’re less likely to worry about running out of juice even if you go camping in the woods for a few days. You also have a micro USB charging cable included, along with the user’s manual.

You need this kind of power if you’re traveling with a group, such as your family. To prevent any arguments about who goes first to recharge, this offers 3 USB ports for recharging. You also have a digital display so you know just how much power you have left.

This also offers various protections to keep everything safe. You have protection against short circuit, over-charge, over-discharge, over-voltage, and high temperature. This also features high-quality ABS shell casing so it doesn’t automatically mean it’s broken if you ever drop it. It’s actually quite tough, which explains why it has an unusually long 24-month warranty.

This isn’t all that big, considering you have an extra 4000mah to work with. It measures 7 by 3.3 inches, and it’s only half an inch thick. The weight isn’t bad either at 347 grams or about 12.2 ounces.

#3 Taoxiwave Solar Charger Solar Power Bank 20000mAh

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

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Now, this looks like an imposingly impressive bit of hardware, whether you get the all-black version or the black with orange highlights on the sides. It’s not really big at all since it measures just 5.47 by 3.11 inches, and 0.83 of an inch thick. It also weighs ¼ of a kilo or just 8.8 ounces.

This also seems to be specially designed for camping trips, as this package includes the solar panel that lets you recharge the power bank even when you’re in the woods. This isn’t the main way to recharge this, of course, but at least you have this option.

Bring this along, and the dual ports can recharge your smartphones and iPad. This is made from various eco-friendly materials, and it’s designed to be waterproof, dustproof, and shockproof. It also has a dangling hook in the corner so you can hang it on your belt or backpack.

There’s a green light here that will tell you if the power bank is getting light and charging. If you put this in the dark, that light goes off. When you’re charging the normal way, you have a solid-state lamp telling you the charging ratio. When it reaches 100%, the light goes pure blue.

What’s more, it even has a compass at the back so you can find your way back to your camp. This also doesn’t just have a simple flashlight, as but dual LED lights that offer SOS and strobe modes.

#2 MetecSmart Power Bank 20000mah

Power Bank 20000mah Portable Charger - Quick Charge 3.0 USB C Fast Charging Type C Backup Mobile External Battery Pack Powerbank Cell Phone Compatible

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The 20000mah MetecSmart power bank is available in black or white, but its simple looks can’t hide its rather impressive features. This comes with the fantastic Quick Charge 3.0 that accelerates recharging to an absurd degree. Now you won’t have to wait long to be able to use your smartphones again when you’re recharging with this power bank.

If you recharge a smartphone with this, the power level of your smartphone goes from zero to 80% in just 35 minutes. That’s 75% faster than what you get with a conventional charger. This can also recharge your iPhone 8 from zero to 50% in just 30 minutes. With other “fast” battery chargers, charging for half an hour will only get your iPhone battery level to 18%.

Even charging this power bank itself doesn’t take long with your 2 input options. While it can take fully 12 hours to recharge this using a 5V/1A charger, with the QC3.0 you can get this done in just 4.5 to 6 hours.

This is actually not big at all, since it only measures 6.3 by 3 inches, while it is only 0.87 of an inch thick. It also weighs 355 g or 12.5 ounces.

Your purchase comes with a user’s manual and a USB cable, along with a 12-month warranty.

#1 Anker PowerCore Lite 20000mAh

 Anker PowerCore Lite 20000mAh Portable Charger, Ultra-High Capacity 4.8A Output Power Bank

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At first glance, this doesn’t really look all that impressive. It’s actually a bit small at 6.1 by 2.8 inches, though it’s an inch thick. It can charge 2 devices at once, but a lot of other power banks can do that. So what’s so special about it?

Firstly, you can power the PowerCore Lite using the USB-C and Micro USB charging ports. This can also this can fully recharge an iPhone 8 in just 2 hours, and for a Galaxy 9, it only takes an hour and 50 minutes. It also is able to go into the trickle-charging mode to charge Bluetooth devices like your wireless earphones without risking an overcharge.

Finally, this actually has a very long list of safety features. These include protection against input overvoltage, input undervoltage, input short circuit, output overcharge, output overcurrent, output short circuit, cell over-discharge, cell overcharge, and cell temperature issues.

All these explain the 18-month warranty, and why it’s so highly regarded. You can really rely on this, and that’s what you need when you go outdoors without any other handy ways to charge your mobile devices.


Having a 20000mah power bank offers a lot of reassurance when you’re traveling and you’re unsure if you can recharge along the way. Pick any of these models, and you’re all set. Whether you’re camping or on the road, a power bank makes sure that your mobile devices don’t become useless too quickly!

Old Version of This Article

Presently, you can find smartphones having more than 5000mAh battery which could power up for two days. Usually, the battery life is not a major concern on smartphones. But what to do if you want to go out for three days for travelling or trekking and fail to get a power input? You may become helpless if you are on a trip and suddenly your smartphone discharges with no option left to charge. In this digital world, there is always the need of power supply. The power bank behaves as a lifesaver in such types of situations. A power bank is a portable charger for the smartphone which could provide USB power with the help of stored energy within its built-in batteries. Let’s look at the list of  the best 20000mAh power banks in 2020:

List of The Best 20000mah Power Banks in 2020 Reviews

18. Portable Charger, Mi Power Bank 20000mAh:

The 20000mAh power bank model from Mi works at 3.7V and delivers efficient charging mechanism. One of the unique traits of this Mi power bank is it adjusts the output power automatically to fulfil different devices’ charging requirements. Moreover, it does not consume extra power and delivers all the output to your device to make sure there is no energy loss. The battery type used is Li-polymer battery which is well-known for years to deliver effective power output.


  • Output from this portable power bank charger is 2 x DC 5.1V / 2.0A, 12V /2.4A, 9V / 1.5A, MAX 18W.
  • The range of the service temperature is extensive i.e. 0℃ to 40℃.
  • It just weighs 358g, so it is lightweight to carry for outdoor use.
  • It supports DC 5V / 2A, 9V / 2A, 12V / 1.5A quick recharging Moreover, it just requires 7 hours to deliver full charging.
  • There is the availability of the four bright LED indicator lights to depict the battery level.
  • To guarantee safe operation, it comes with the 9S circuit protection from Texas Instruments.

17. 20000mAh 3A Type C Power Bank by DYW Portable Power Banks:

Presented in a reasonable size, the DYW Power Banks took enough care to simplify the portability related hassles. It is extremely simple to carry and use on the go. Its overall appearance resembles a well-designed unit with the simplicity of use.


  • This Type C power bank comes with the 2.4A fast charging in order to fully charge your device in less time.
  • High efficient output is presented through the inclusion of the 18650 lithium battery.

16. VINSIC 20000mAh Power Bank, Dual USB Port External Battery Pack:

Another efficient power bank from Vinsic in this list, this 20000mAh power bank device presents 10 times charging for iPhone. Due to the inclusion of the high capacity battery, this portable charger offers powerful and balanced power supply for every port. To save time while outdoors, users can quickly charge two digital devices simultaneously through the use of the dual USB ports.


  • This 5V 4.8A portable charger comes with the universal fits for iPhone 6 5S/5/4S/4, iPod, iPad, Samsung devices (excluding Samsung S5), tablet PCs, HTC phones, game consoles, digital cameras, and MP3/MP4 players, etc.
  • It provides many different types of protection like over-charged, over-discharged, over-current, over-voltage, and short circuit protection.

15. ZizoCharge Power Bank 20,000 MAH Fast Charge Portable Charger:

To fulfill the charging needs for your phone, ZizoCharge presented this portable charger equipped with excellent charging efficiency. This 20000mAh easy-to-use portable charger offers approximately 7.5 times the charging speed than that of the iPhone X charges or 6 Galaxy Note 8 charges.


  • In order to provide the charging speed up to 2.0 Amps, there is the implementation of the ZizoBoost technology in this portable charger.
  • Use of the ShockIQ technology avoids issues of over-charging, over-discharging, over-current and short circuit.

14. Youtiankai Xiaomi Mi Power Bank 20000mAh:

With a view to enhancing the durability, the Mi 20000mAh power bank unit comes with the award-winning aluminum alloy based unibody surface. Beautiful and creative style is conveyed to present a unique look. The metal band and the silver gloss finish uniquely compliment the appearance of your iPhone or several other devices. It comes with the improved conversion efficiency which suggests that it completely justifies your investment.


  • This Youtiankai Xiaomi power bank comes with excellent compatibility to allow it to function with all the leading smartphones and tab- Works with all major smartphone and tablet models.
  • For maintaining the sleek look, there is a total of four invisible LED status indicator lights.
  • Its input interface is micro USB whereas the output interface is dual USB.
  • To guarantee safe use, the construction utilizes Samsung original Grade A 10400mAh high capacity cells as well as superior quality microchips.

13. XT Power XT-20000 Power Bank 75Wh 20000mAh:

The 20000mAh rechargeable capacity of this 75Wh power bank makes sure there are no concerns of a dead battery or low charging. This XTPower device delivers the required power to all your mobile devices. For the purpose of charging, there is the inclusion of USB ports and a rechargeable battery. Generally, it is found that the XTPower XT-20000 conveniently fits into your pocket, bag or purse.


  • Facility of a quick charge USB port (5v / 2a) and a USB-c port provide simultaneous charging of devices like Android, iPhone, iPad, and other compatible devices.
  • The included LED lights inform the residual battery power.
  • Its compact design is extremely portable and convenient to hold.
  • To present excellent safety, the battery pack would automatically shut down once a short circuit or the overload output takes place during charging.
  • The built-in premium Lithium-ion battery comes with more than 500 battery charge cycles

12. 20000mah Double USB Ultra Thin Portable External Battery Charger:

You would be surprised to know how your smartphone charges up to 10 times through the use of this portable battery charger.  In addition to being efficient and equipped with a high capacity of 20000mAh, this portable charger is convenient for travel. It can effortlessly slip inside your pocket and so it is easy to carry along with you.


  • Use of aluminum casing presents high durability.
  • Inclusion of the dual USB ports enables the user to charge two devices simultaneously.
  • During an emergency or nighttime use, the built-in flashlight helps a lot.
  • One of its ports come with an output of 2A allowing the user to charge huge devices like the tablet. On the other hand, the remaining port is perfect for smartphones.

11. Taoxiwave Solar Charger Solar Power Bank 20000mAh:

What makes this Taoxiwave power bank device special is its water-proof functionality. Basically, this high capacity power charger is solar powered, so there are no doubts regarding its efficiency.  For different activities like camping, hiking, or other outdoor activities, this solar charger is just perfect.


  • It is quite simple to charge two smartphones simultaneously with the assistance of dual USB ports.
  • Its powerful LED flashlight precisely indicates the charging status.
  • There is a total of five pilot indicators to display the status of the battery This solar power bank’s green light is activated while charging by solar, whereas the blue light is activated on while charging is through USB.

10. Power Bank 20000mah Portable Charger by Easy Style:

This device supplies a perfect portable charger for your smartphones and tablets, plenty of power required for charging your devices. The brand Easy Style made this 20000mAh portable charger keeping in mind ultra-high capacity and portability. For high-speed, optimum charging, there is the facility of the dual USB output. Generally, this Easy Style portable charger is found compatible with iPhone, iPad, iPad Mini, Samsung Galaxy S8, S7, Google Nexus 7, Android, LG, and Sony devices.


  • The included LED status lights inform the residual capacity.
  • Included two USB ports facilitate easy charging of two devices in a simultaneous manner.
  • Built-in flashlight is helpful for use in dark environments or during an emergency.

9. LQM 20000mAh Battery Backup Power Bank

This 20000mAh capacity power bank from LQM is capable to swiftly charge smartphones from iPhone and Google Nexus in order to keep the devices running all the time. Different smartphones from most of the leading brands can be easily charged with this device.


  • This high capacity power bank can charges two devices simultaneously.
  • It comes with excellent charging capacity for majority of smartphone models from Apple, Samsung, Google Nexus, LG, Motorola, etc.
  • The power bank’s slim and ergonomic design makes it easily portable.
  • The device is easy to hold in the hands and can be conveniently placed anywhere.
  • A Micro Usb cable provides convenient charging facilities.

8. Anker PowerCore II 20000

The leading technology from Anker is incorporated in this power bank that comes with the ultra-high capacity portable charger along with upgraded compatibility.


  • Quick and safe charging is implemented with the advanced technology
  • The 20000mAh pure power is sufficient to let an iPhone 8 running for around a week. This is because it can power the iPhone 8 by more than 6.5 times.
  • You can do rapid recharge because you can top up the battery in as low as 5 hours with the help of its quick charge charger.

7. Tinkon 20000mAh Power Bank with Flashlight

Equipped with a flashlight, this power bank from Tinkon is capable to support over-discharged, over-charged, over-current, over-voltage, and short circuit protection.


  • It comes with a feature of automatic shutdown whenever a short circuit or overload output happens when the unit is charging.
  • The power bank is ultra-portable because of the slick design suits seamlessly in your hand.
  • It has a built-in LED flashlight with excellent brightness to assist you in emergency situations.
  • The device is safe to charge because it has a built-in intelligent power manage IC that protects your devices against the extreme current, overcharging, and overheating.

6. AUKEY 20000mAh Power Bank

The power bank from AUKEY can be recharged with the help of micro USB cable or lightning cable. You can suitably use the same cable for charging your phone as well as external battery.


  • You can keep your smartphones charged on the go using the dual USB charging ports.
  • It can seamlessly work with every leading USB powered devices, ranging from iPhones to Android smartphones, photography gear, tablets, headphones, Bluetooth speakers, and more.
  • There are built-in safeguards that secure your devices against the extreme current, overcharging, and overheating.

5. Tundras 20,000mAh high speed Power Bank

The use of high capacity durable Lithium battery in these power banks from Tundras offers twelve hours of charging. Its dual USB Port design supports 3.4A output and 5V input.


  • There is a digital LED display that depicts the percentage of available charging capacity.
  • It comes with a micro USB cable which can be utilized to charge the battery as well as the micro USB devices
  • The appealing feature is the built-in intelligent chip design which detects the finest charging mode feasible for your device. Based on that, it provides the appropriate charge.
  • The use of precise electronic board works to avoid leaks, overcharging, and short circuits. Moreover, it provides high-temperature resistance.

4. EMIGVELA 20000mAh Fast Portable Charger

You can find the power bank to be extensively used in a laptop and cell phone portable charger while The convenience of USB ports makes this power bank a unique one among the competitors.


  • Not only cell phones, but this portable power bank is capable to charge the high voltage devices like camera, laptops, and more.
  • It comes with a USB A port and a USB Type C port. Therefore, it can support every USB A to micro USB cord, USB A to USB C cord, apple lightning cord, USB C to USB C cord and many more.
  • When compared with other common power banks, this device can save 25% to 60% charging time to charge your devices at the full capacity.

3. KUPPET 20000mAh Power Bank

If you are looking to get the swift charge speed then this power bank from KUPPET is the best one that make you no need to concern about power dies when you are traveling. Also, there is no worry regarding power off during hurricane days.


  • The power bank is comparatively lighter than other similar models.
  • It makes use of the Polymer Battery which is 30% the weight and 20% the size of a typical lithium battery.
  • You gain access to efficient, safe, and high-quality portable charger.
  • When used, you can check the available capacity with the help of an LED display.

2. POWERADD Pilot X7 20000mAh Power Bank

Recognized as the latest version of POWERADD i.e., Pilot X7 is made up from Li-polymer, which is safe and light in weight.


  • The device is capable to automatically discover the relevant output current of the devices you wish to charge.
  • There is flexibility to charge two devices simultaneously.
  • You can conveniently charge your devices at their full speed.
  • Your device stays protected against the extreme current, overcharging, overheating, and more.

1. F.DORLA Solar Charger 20000mAh Power Bank

Whenever you are looking for a portable charger packed with super powerful function then this one is for you. You can directly charge it under sunlight.


  • It comes with built-in lithium polymer battery cells, so you are assured about the overcurrent and short-circuit protection.
  • The power bank comes with great durability because it is made up of ABS+PC+Silicone type of material. Moreover, it also comes with a solar powered bank along with compass and carabiner.
  • Its design is done keeping in mind shock-resistant, water-resistant, as well as dust features.

Concluding Note:

Power banks are the perfect companions while you are away from your house for many hours. You can conveniently charge your devices with full charging capacity using these discussed power bank devices.

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