16 Best Power Banks – Recommended Buyers’ Guide, Tests, FAQs, Customer Feedback, More

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Check out product summary table of best power banks in 2021 or the table of contents below to pick out the best power bank in the market.

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Simple Question!
What power bank to buy?

We understand that making a perfect choice based on your needs can be overwhelming when it comes to the best power banks in the market. So to make things simpler, we have handpicked the best one for you.

Power Banks – Table of Contents

For a summary of reviewed power banks, check out the product summary table.

Manufacturers of smartphones, tablets, and media players are constantly trying to make better products with extended battery life. But, no matter how hard they endeavor, our ever-increasing use of these gadgets will continue to outstrip their battery life. That’s where power banks come to the rescue!

Power banks are special portable batteries designed to take up and store electrical energy. At a later time, this electrical energy can be used to charge smartphones, media players, and even tablets.

However, there can be unnecessary obstacles and disappointments in this rather simple process if you haven’t invested in a high-quality portable charger.

To save you the hassle of what power bank to buy, we have rounded up the 16 best power banks available on Amazon and explained in detail the pros and cons of each.

But, before we jump into the specific details of each one of the power banks, let’s have a summary of our roundup.

Product Summary

Power BankBattery (mAh)PortabilityUSB PortsCheck Price
Anker PowerCore 20100 - Editor's Choice20100Low2
RAVPower Luster Mini3350High1
Anker Astro E726800Low3
Jackery Mini Premium3350High1
Anker Astro E1 - Editor's Choice5200High1
Anker PowerCore 1000010000Medium1
EasyAcc Monster 20000 - Editor's Choice20000Medium4
Aibocn Power Bank 1000010000Medium2
DULLA M5000012000Medium2
Vinsic 2000020000Low2
RAVPower 16750 mAh16750Medium2
KMASHI 1000010000Medium2
Unifun 1040010400Low2
Anker PowerCore+ Mini 3350High1
Portable Charger RAVPower 2200022000Low3
iXCC 3400 Power Bank3400High1

What Power Bank to Buy? – Best Reviews

Let’s review each power bank in detail.

1. Anker PowerCore 20100 

Ultra High Capacity Power Bank with 4.8A Output, PowerIQ Technology for iPhone, iPad, and Samsung Galaxy, and More (Black)

Anker has answered all your wishes for a lightweight power bank for mobile that is equipped with massive battery capacity in this brand-new unit. We do not exaggerate when we say this conveniently portable power bank will last longer than you expect.

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Features of Anker PowerCore 20100

  • Can hold an enormous amount of 20100mAh
  • When recharged to 100%, the power bank can revive 7-8 devices from 30% to 100% battery and still be left with almost 20% battery juice of its own
  • Integrated with the smart-charging Power IQ technology which monitors the connected devices and delivers the maximum amount of power that can be safely consented to them
  • A surge protector and a short-circuit protector keep the device from over-heating and other hazards
  • Lightweight and concise in design; weighs 350 grams and is 220 mm in length
  • Comes in matte black and a subtle white color with four status LEDs
  • Two USB ports, each rated at 2.4 amps, can charge two devices simultaneously
  • On the side is a micro USB input to charge the power bank itself, which takes 8-10 hours to fully charge with a 2A wall charger
  • Compatible with Apple, Android, and almost all other devices charged via USB

The unit is supported by 18 months warranty and responsive customer service by Anker. This is a highly recommended mobile power bank for all those struggling to keep their phones alive throughout the day.

Things we liked
  • Massive 20,100mAh battery capacity with a 70% efficiency
  • Durability with double-layer inner metal & outer polycarbonate shell
  • Two fast charging 2.4 amps USB ports
  • Power bank battery comes pre-charged to 75%
  • Light weight
  • Rounded edges
  • Reasonable price
  • Safety technologies
  • Travel pouch that comes with the power bank
Things we did not like
  • Attracts a few too many finger prints
  • Takes long to fully charge
  • Can’t charge the power bank and mobile devices simultaneously
  • When charging two devices together, one charges slower than the other

PowerCore 20100 is a lifesaver for times when you’re out on an excursion and can’t be in the vicinity of a wall power outlet. Once sufficiently recharged, leave it to PowerCore 20100 to keep your mobile devices up and running smoothly for a couple of days or even more!

2. RAVPower Luster Mini 3350mAh

Smallest but Powerful Enough Portable Charger External Battery Pack and Power Bank and iSmart for iPhone, iPad, Android, and Other Smart Devices (Black)

RAVPower keeps its word when they say ‘smallest but powerful’. Luster Mini 3350 is quite handy because of its lightweight and compact, cylindrical design.

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Features of RAVPower Luster Mini 3350mAh

Here are some of the features of this incredible power bank.

  • Stores and delivers the ample amount of 3350mAh of battery juice
  • 1 amp output port for charging mobile devices
  • 1 amp micro USB port to charge the power bank
  • LED indicator which illuminates depending on the range over which the bank power is charged; green light indicates 100% battery juice, blue indicates 50-79 percent, and red indicates 20-49 percent charge     
  • The battery bank comes secured in an anodized aluminum case
  • A smart, clip-inspired design available in bright, flashy colors
  • Comes with a flat micro USB cable
  • The power bank can provide a full rating of 1A at 5V to an iPhone, exactly what the phone requires
  • When charging an Android phone, the power bank delivers 0.82 A at 5V, which is more than what wall outlets can provide. So, the Luster Mini may charge your Android phones faster than you can charge them off wall power outlets
  • The circuit design fitted inside this pocketable power bank for mobiles efficiently controls amperage and power control in accordance with the device’s requirements
  • There is a small power button on the same side as the USB ports

All in all, it is a great power bank for smartphones; light in weight, compact in design, yet high-performing in battery capacity.

Things we liked
  • Delivers the rated battery capacity of 3350mAh
  • Provides the expected and slightly excess power rating
  • Fast charging
  • Compact design
  • The flat micro cable
Things we did not like
  • The power button is hard to push when USB is connected
  • When device is connected, the USB covers most of the LED indicator

Luster Mini is a power-packed battery bank that takes up only a minimal amount of space among other mobile accessories but serves greatly. It can very well make your smartphones last a couple of days longer without a wall charger.

3. Anker Astro E7 26800mAh

Ultra-High Capacity 3-Port 4A Compact Portable Charger External Battery Power Bank with PowerIQ Technology for iPhone, iPad, Samsung, and More

Powerful and portable, unfortunately not pocket-sized, this battery bank for mobile devices happens to be a useful item to carry to your travels for charging three smartphones and/or tablets at a time.

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Features of Anker Astro E7 26800mAh

  • The external power bank has a battery capacity of 26800mAh
  • Anker has generously added 3 USB ports to this unit
  • Lasts two to three days, or even more, in one full charge
  • With 100% battery juice, it can charge an iPhone 9 times  
  • Total combined output of 4A, with a maximum single output of 3A
  • Safety features include output voltage surge protection, output current stabilizer, and short-circuit protection
  • Power IQ technology detects the connected devices and delivers the safest maximum amount of charge the devices can bear
  • Four LED indicator lights displaying the percentage range of battery juice left in the power bank
  • Micro USB port for charging the power bank, which takes around 12-14 hours to fully charge with a 2A wall charger
  • Additional flashlight feature
  • Six and a half inches long by three inch wide and an inch in thickness.
  • Weighs 485 grams
  • Compatible with all Apple, Android, and Windows devices as well as any other device that charges via USB
  • The power bank supplies 60%-70% power to the connected devices

Even with the slightly heavier weight, it makes for a pragmatic addition to your backpack because of the high battery capacity.

Things we liked
  • Empowering battery capacity
  • Fast charge speed of 4 amps
  • 3 USB ports
  • Flashlight
  • Safety features
  • Glossy plastic finish
Things we did not like
  • Can’t be carried in pocket because of heavy weight and large size
  • The power bank takes 16-18 hours to charge to 100%
  • Does not support Quick Charge technology
  • Takes  very long to full charge the power bank

This is a slightly heavier and larger alternative to the average wall charger, but certainly more powerful and convenient when you have to suffice without wall power outlets for 3-4 days. The power bank is absolutely safe to carry in a bag.  

4. Jackery Mini Premium 3350mAh Portable Charger

External Battery Pack, Power Bank, & Portable iPhone Charger for iPhone 7, 7 Plus, 6s, 6s Plus, iPad, Samsung Galaxy S7, Samsung Galaxy S6 (Black)

Jackery Mini Premium is designed to live up to your expectations with a powerful and compact portable power bank. It is one of the best power banks. Jackery has manufactured and is sure to extend your phone’s battery life while you’re on the go.

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Features of Jackery Mini Premium 3350mAh Portable Charger

  • The battery bank delivers an exact amount of 3350mAh
  • The charger uses a Panasonic Grade A Li-ion cell and premium microchips that deliver top-notch performance
  • Power turns off automatically after 30 seconds if no device has been connected
  • Lightweight, compact, and pocket-sized
  • Charges mobile devices very fast
  • Compatible with various Apple and Android devices
  • 4-LED battery status indicator lights
  • Smooth and sturdy build with a polished aluminum casing
  • Does not auto-start when connected to a USB. You have to push the power button to start charging the device
  • The blue status indicator lights up when the power is turned on but goes off in 10 seconds to conserve as much power as possible
  • The battery bank charges rather fast, in just 3.5 hours, to full 100%

This is a handy power bank to carry around in your pocket; one that will serve you hard and fast.

Things we liked
  • Powerful yet ‘lipstick’ sized
  • Highly compatible with a spectrum of devices
  • Four layers of smart safety protection
  • Turns off automatically when USB not connected
  • Fast charging and recharging
Things we did not like
  • The power button has to be pressed  again and again to check the battery status while device is being charged
  • Energy efficiency of 65%-70%
  • Unclear and confusing instruction manual

This premium quality small powerhouse is as handy to carry around as lipstick! And while it is compact in size, it is mighty in battery capacity and use.


5. Anker Astro E1 5200 mAh

Candy bar-Sized Ultra Compact Portable Charger (External Battery Power Bank) with High-Speed Charging PowerIQ Technology (Black)

This is one powerfully and beautifully built power bank highly adequate for carrying on a trip and keeping your smartphone(s) charged and working.  

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Features of Anker Astro E1 5200 mAh

  • The battery has a capacity of 5200mAh
  • Charges an Apple or Android phone to 100% one to two times and iPad mini to 80% while on the go
  • Only 119 g in weight and 3.82 inches in length; extremely compact in design
  • One USB port rated at 5 V
  • Charges a device at the speed of 2.1 amps
  • The charging stops automatically when the device has been charged to a full
  • 4 blue LEDs to indicate battery status
  • The lithium power bank battery can be recharged over 500 times during its lifetime
  • The power bank takes 5 hours to recharge to 100%
  • It comes with a 27-inches long micro USB cable
  • Power efficiency of 60%-70%


There’s little more to be asked for from a power bank this compact in size. In my opinion, the size of the power bank serves its purpose quite well.

Things we liked
  • Sleek and solid design
  • Candy-bar size
  • The power button fits well in the unit and cannot be accidently pressed on
  • Power IQ technology
  • 18 month warranty
Things we did not like
  • Slightly overheats
  • The glossy casing catches fingerprints easily

Astro E1 fares just as well as advertised. It’s another Anker power bank that won’t disappoint you and juice up your smartphones a good many times on your travels.

6. Anker PowerCore 10000

Portable Charger, One of the Smallest and Lightest 10000mAh External Battery, 10000mAh Ultra-Compact High-speed-Charging-Technology Power Bank for iPhone, Samsung Galaxy, and More

Anker’s PowerCore 10000 is by far the most popular and among the best power banks available on Amazon. It is one solid, concise, and super powerful answer to the question of what power bank to buy.

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Features of Anker PowerCore 10000

  • A small and light body housing a powerful 10000mAh charger
  • With 100% battery juice, it can charge an Apple and Android phone four times from 0 to 100%
  • One USB port for mobile devices
  • Only 181 grams in weight and 3.62 inches in length; light and pocketable
  • Power IQ and Voltage Boost technologies combined to deliver the fastest, safest, and maximum possible charging to the connected device
  • Although variable, the USB power bank charges devices with the super fast speed of 2.4 amps
  • Integrated with Anker’s MultiProtect technology which monitors and prevents output voltage surge, short circuit, overheating, and other operational hazards
  • The power bank refills at 2A (10W)
  • The power bank automatically begins charging when device is plugged on
  • Four LEDs indicating battery status
  • The portable power bank comes with a Micro USB cable, travel pouch, welcome guide, instruction manual, and an 18-month warranty.
Things we liked
  • 27% smaller than comparable power banks
  • Achieves insanely fast-charging with Quick Charge-compatible phones
  • 75% power efficiency
  • Auto-on
  • Reasonably priced
Things we did not like
  • Cannot simultaneously charge the powerbank and the device from a single mains outlet
  • Lacks the basic flashlight feature
  • Not waterproof

Anker PowerCore 10000 is one the best power banks, most highly rated by Amazon users, and rightly so! The battery capacity, efficiency, and size of this battery bank do justice to its price and qualify well to be carried along your mobile devices.


7. EasyAcc Monster 20000 mAh

Power Bank (4A Dual-Input Fastest Charge 4.8A Smart Output) External Battery Pack Charger Portable Charger for Android iPhone Samsung HTC – Black and Orange

As the name suggests, this is one heavy-duty, heavy-built battery power bank with hefty battery capacity and device compatibility that surpasses all.

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Features of EasyAcc Monster 20000 mAh

  • The power bank has a whooping battery capacity of 20000 mAh
  • The battery capacity of 20000 mAh is enough to charge an iPhone 6s 8 times and an iPad twice to a full 100%
  • Four USB charging ports with a maximum output of 4.8 A
  • Built in Smart Technology that delivers only the safest maximum amount of amperage to your devices
  • Two input micro USB ports to charge the power bank faster, which usually takes around 11-12 hours with a 2 amp wall charger
  • Four white LEDs indicating the power bank’s battery status
  • A big bright flashlight which was added purposefully and not as a mere afterthought
  • Compatible with all Apple, Android, Windows devices and almost about anything that charges via USB
  • Weighs 454 grams
  • 6.75 inches in length and 3.15 inches wide
  • Comes with two micro USB cables

Easy Acc Monster 20000 may not be as handy as other portable power banks but it certainly makes up for its weight and size in terms of battery capacity and charge speed.

Things we liked
  • Massive battery capacity
  • Great compatibility with USB devices
  • Sufficiently bright and effective flashlight
  • 4 charging ports
  • 2 micro USB cables that come packed with the power bank
  • Plastic matte finish of the battery
Things we did not like
  • Heavy weight
  • Cannot be carried in pocket
  • Takes long to fully recharge

This power bank is ideally made to be taken along on camping and long road trips and airplane flights. Once fully recharged, it can last as long as a week all the while rejuvenating your mobile USB devices, including cameras, iPads, and tablets.

8. Aibocn Power Bank 10,000 mAh

External Battery Charger with Flashlight for Apple Phones iPad Samsung Galaxy Smartphones Tablet

Taking in view its size, price, and battery capacity, Aibocn Power Bank 10,000 performs considerably well. In addition to that, there are several other useful features of this battery unit as well.

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Features of Aibocn Power Bank 10,000 mAh

  • Great battery capacity of 10,000 mAh
  • With full battery juice, it can easily charge iPhone to a full 100% 3 to 4 times
  • Sleek and stylish design that does not catch many finger prints
  • Quick and simultaneous charging of two devices with double USB ports, one with 2.1 amps output and the other with 1.0 amp output
  • Charges connected devices best when provided with 1.5 A at 5 V
  • Safety protection mechanisms control and make the unit immune to over-charging, over-discharging, surge voltage, short circuit, and other hazards
  • Backup flashlight which provides a bright, wide beam of light
  • Four battery status indicator LEDs
  • Multi-function power button; one press shows power bank battery status, two presses turn on the flashlight, and further two presses turn the flashlight off
  • Comes with a micro USB 2.0 cable
  • 5.5 inches long and 3 inches wide
  • It has 30-days money-back and an yearlong limited warranty
Things we liked
  • Two USB ports
  • Slim design
  • Safety protection mechanisms
  • Quality of the backup flashlight
  • 30-day money-back warranty
Things we did not like
  • Not as power efficient as advertised
  • The right side of the battery is slightly heavier than its left

Apart from a few ignorable downsides, Aibocn Power Bank 10,000 is largely very useful. It can bring your phone and other devices that charge via USB to life within a matter of minutes and keep you well-connected to the world while out on the roll.


9. DULLA M50000

Portable Power Bank 12000mAh External Battery Charger, Ultra Slim Design with 2 USB Ports for iPhone7 Plus 6s 6 Plus, iPad, Samsung Galaxy, and More (gold)

Relatively new to the power bank game, Dulla has done an exceptional job with the M50000 portable power bank. The size, weight, and battery capacity are really competitive at the given price for anyone looking for easy portability and excellent performance from a power bank.

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Features of DULLA M50000

  • Rated at 12000mAh, this offers sufficient amount of battery juice on the go
  • Easily fully charges an iPhone 6s 4.3 times
  • Takes about 7 hours to recharge to full, not the fastest recharge speed available on the market but holds the charge for a considerable long time period
  • Dual USB ports, each rated at 1.5A allow for simultaneous charging of two devices
  • Intelligent power manage IC takes care of safe charging of the connected devices; provides over-charged, over-discharged, over-voltage, over-current, and short circuit protection
  • Slim and stylishly designed with a subtly sparkly casing
  • Available in four elegant colors
  • Bright and efficient flashlight
  • Light weight; 250 grams
  • Comes with a micro USB cable
Things we liked
  • Heavy battery capacity of 12000 mAH
  • Look and feel of the unit
  • Ultra-slim design
  • Safe charge technologies
  • Light weight
Things we did not like
  • Charge speed not as fast as advertised
  • Confusing user manual
  • Few reported cases of defective USB cables being shipped

All these amazing features justify why this power bank is particularly popular among Amazon users. Dulla M50000 is an ideally useful companion for your smartphones and will come in real handy when you’re running low on phone battery.


10. Vinsic 20000 mAh

Ultra Slim Power Bank, 10 Times for iPhone 5/5S, Dual USB Portable External Battery Charger for iPhone, iPad, Samsung, Cell Phones

Vinsic is the go-to brand if you’re looking for a power bank top-notch in style, form, and function. The power bank offers great battery capacity, portability, a sleek design, and high performance, all at a very competitive price.

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Features of Vinsic 20000 mAh

  • Amazing storage of 20000 mAh
  • Charges an iPhone 7-10 times with full battery capacity
  • Dual USB ports, one rated at 5W and the other at 10.5W, allow for fast charging of two devices at the same time
  • Highly compatible with all Apple and Android devices. Additionally, works well with digital cameras, gaming consoles, MP3/MP4 players, etc.
  • Well-equipped with safe charge technologies
  • Built-in figure LED indicator which displays the exact percentage readout of the remaining battery juice
  • Weighs 537 grams
  • Comes with a micro USB cable
  • Auto on/off saving you the hassle of pressing buttons to start or stop charging

Things we liked
  • Massive battery capacity of 20000mAh
  • Auto on/off
  • Comes pre-charged to 95% from the factory
  • Digital battery percentage readout
  • Slim stature
Things we did not like
  • No built-in flashlight
  • Charges to 100% over the span of an entire night
  • Not supplied with a soft carry case

In terms of capacity-to-price ratio, Vinsic is an excellent-value power bank that has been mindfully designed. It’s an ideal companion for smartphones and tablet owners who won’t be in close vicinity of a mains power for quite some days.

11. RAVPower 16750 mAh

4.5A Dual USB Output Portable Charger External Battery Power Bank (iSmart Technology) – Black

Powerful, stabilized, and stylish! This is precisely what you will have to say about RAV Power 16750 after you’ve used it a couple of times on your travels or days away from home. You have our word.

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Features of RAVPower 16750 mAh

  • Sufficient battery capacity of 16750mAh
  • With 100% battery juice, capable of charging a Galaxy S6 4 times, iPhone 6 or 6s 6 times, and iPad Air once
  • Provides the connected device(s) with an output of 4.5A, the highest so far in the power banks market
  • Dual USB ports, one rated at 2.4A and the other at 2.1A, charges a smartphone and a tablet simultaneously
  • Integrated with iSmart technology which delivers the maximum safest possible charge to connected devices
  • Safety protection measures make sure the power bank turns off automatically in case of voltage surge or short-circuit
  • 4 LED lights indicate power bank battery status
  • Built-in bright flashlight
  • An anti-scratch casing which doesn’t attract many fingerprints
  • The unit holds over 500 lifetime charging cycles which means it will last you a good long time before the top-notch lithium ion battery begins to degenerate
Things we liked
  • Large battery capacity
  • Simultaneous fast charging of two devices
  • Long life
  • Safe charge technology
  • Anti-scratch casing
  • Slim and smart build
Things we did not like
  • USB ports are easily damaged because of lack of stress isolation of the board from the USB ports
  • Light weight but quite large in size

This powerful unit from RAVPower works as well as advertised apart from the minor USB ports design flaw. That, however, won’t come in the way while you are out on an excursion and need to recharge your smartphones and tablets on the roll!  

12. KMASHI 10000 mAh

External Battery Power Bank, Portable Charger Backup Pack For iPhone 6s 6 Plus, and more

Kmashi has produced a rather amazing unit with the most advanced tech and portable design power banks have to offer. This sturdy external battery is able to hold the advertised potential and deliver it efficiently whenever required.

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Features of KMASHI 10000 mAh

  • Large 10000 mAh battery capacity
  • Comfortably charges iPhone 6 5 times and iPad 2nd Generation about 1.3 times
  • Dual USB charging ports, one is labeled Output 1 and the other Output 2
  • Output 1, more fitting for charging smartphones, charges at 5V/1.1A
  • Output 2, preferably for charging tablets and iPads, charges at 5V/2.1A
  • The micro USB port functions best at recharging the power bank when connected with 5V/2.0A mains supply
  • Takes 5 hours to recharge fully
  • Basically designed, 5.47 in length, 2.52 in width, and weighing only 277 grams
Things we liked
  • Massive battery capacity
  • The power button on the battery pack needs to be pressed for just a split second to work
  • Sturdy, scratch-free casing
  • Recharges fast provided the required amperage
  • Light weight
Things we did not like
  • No built-in  flashlight
  • Although light in weight, it’s quite large in length
  • Incapable of pass-through charging; cannot charge the powerbank and connected devices simultaneously

If you’re in the search of a power bank that’s heavy-duty both build and performance-wise, KMASHI 10000 is just the power bank for you!


13. Unifun 10400 mAh

Waterproof External Battery Power Bank Charger with Strong LED Flashlight and Strap Hole for Tablets, Smartphones, and 5V Devices

Unifun 10400 may not be the slimmest power bank there is out there, but it certainly offers a great deal in terms of battery capacity and fast charging. This solid-built power bank works great with Go-Pro, digital cameras, smartphones, tablets, and almost anything that charges via USB.

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Features of Unifun 10400 mAh

  • 10400 mAh battery capacity
  • Fully charges an iPhone 4-6 times
  • Dual USB ports, one with an output of 5V/1.0A and another with an output of 5V/2.1A
  • A micro USB input labeled 5V/2A
  • Takes about 7 hours to recharge to full when connected to 2A mains power
  • Lithium polymer core can sustain up to 1000 lifetime charge cycles
  • Heavy duty flashlight which casts a strong beam lighting up as much as 12 feet ahead
  • Comes with a 2 feet long micro USB cable
  • 6 inches long, 3 inches wide, and weighs 300 grams
  • The water proof and shock resistant plastic casing is designed to be function in harsh environments
Things we liked
  • Water proof
  • Shock resistant
  • Charges Go-Pro
  • The bright, useful flashlight
  • Rugged but creative construction
Things we did not like
  • Quite large and heavy when compared to other power banks in the market
  • Battery capacity not as high-performing as advertised

This portable alternative to a wall power outlet can definitely take a hit and continue to deliver in rugged environments and harsh weather conditions. The waterproof and shock-resistant outer casing is what sets this unit apart from others in the market.

14. Anker PowerCore+ Mini 3350 mAh

Lipstick-Sized Portable Charger (3rd Generation, Premium Aluminum Power Bank) One of the Most Compact External Batteries, Uses Panasonic Cells

Anker is a trusted and reliable producer of power banks. Hence, goes without saying, PowerCore+ is a high-performing, battery bank encased in a comfortably small and elegantly portable body.

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Features of Anker PowerCore+ Mini 3350 mAh

  • Power capacity of 3350mAh or 12.06Wh
  • Fully charges an iPhone once with 100% battery juice
  • Single USB port rated at 5V/1A, same as the micro USB input
  • Contains a high quality Panasonic-Sanyo NCR18650BF Lithium Ion cell, the finest and safest cell available in the market
  • Anker exclusive Power IQ amp adjustment technology ensures super-fast and safe charging of connected devices with a charge speed of up to 1 amp
  • Lipstick sized; 3.7 inches in length and weighs only 80 grams
  • Comes along with the battery bank a micro USB cable, travel pouch, and an 18 months warranty
Things we liked
  • Sturdy, handsome industrial design
  • The use of the finest cell
  • Intuitive use of the compact space in the unit
  • High capacity given the small size
  • Safe and fast charging
Things we did not like
  • Overheats
  • The DC Boost converter between batteries is reported to work variably, lowering the output current and battery capacity in some units

Anker’s lipstick-sized PowerCore+ has to be the most powerful mini power bank available in the market. The elegant build and high performance of the battery make it quintessential for regular outdoor use and raise the bar for the power bank industry.

15. Portable Charger RAVPower 22000 mAh

5.8A Output 3-Port Power Bank USB Battery Pack (2.4A Input, Triple iSmart 2.0 USB Ports, Li-polymer Battery) External Battery For Smartphones Tablets more- Black

RAV Power has quite outdone itself with this particular portable charger. High performing, chic in design, and pocketable solid build, this unit lives up to all the expectations of users and RAV Power associated with it.

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Features of Portable Charger RAVPower 22000 mAh

  • Massive battery capacity of 22000 mAh
  • Charges iPhone 6 up to 9 times, Galaxy S7 up to 5 times, and iPad Mini over 3 times
  • Three fast charging USB ports each rated at 5V/2.4A
  • Takes 10 hours to recharge completely
  • Four LED battery status indicators that light up only when the power button is pressed
  • High density Lithium-polymer battery retains 70%-80% of the battery juice
  • iSmart 2.0 technology adjusts voltage and current and supplies the maximum charge the connected device(s) can accommodate
  • Panasonic Smart IC frequency technology takes care of short-circuit, surge voltage and other hazards within the battery
  • Outer casing made up of a UL94 V-0 fire-resistant shell
  • Comes with 2 micro USB cables, a travel pouch, and a lifetime warranty card
Things we liked
  • Three 2.4 amps fast charging ports
  • Excellent power efficiency
  • Battery protection technologies
  • Accessories that come along with the battery bank
  • The slick protective casing
Things we did not like
  • Takes a long time to charge
  • No flashlight feature

RAV Power’s 22000 mAh portable charge is highly recommended for its consistency, quality performance, and durability. Take it along while on the go and you keep your smartphones and other mobile devices up and running at all times.

16. iXCC 3400 mAH Power Bank

Mini Portable External Battery Charger for Apple iPhone, iPod, Samsung, HTC One, Fire Phone, Google Nexus, and More – Pink

This portable power bank has some great features packed inside a mini slick body.

Best Mini Portable Power Bank for smartphones (Girls) what power bank to buy

Features of iXCC 3400 mAH Power Bank

  • Premium grade 3400 mAh battery
  • Can comfortably provide one full charge to Samsung S6 and slightly more to iPhone 6
  • Over 500 recharge cycles possible in battery’s lifetime
  • Standard size single USB port
  • ChargeWise ™ Technology detects the connected device and provides optimal amount of charge
  • 4 LED battery level indicators
  • Compatible with almost all smartphones, MP3/MP4 players, and even digital cameras
  • Comes with a micro USB cable and 2-year warranty
Things we liked
  • The fine, compact designing of the battery bank
  • Power efficiency of the unit
  • ChargeWise ™ Technology
  • 2-year warranty
Things we did not like
  • The on/off button is quite protruding and gets pressed on  when being carried in a bag
  • Doesn’t support pass-through charging

iXCC has produced this unit as a smart and compact solution to all your smartphones’ battery life issues. This power bank can certainly be relied upon for long travels and outdoor trips when you can’t get hold of a wall power outlet.

How to Choose a Power Bank?

When faced with so many brilliant options, deciding what power bank to buy can be quite an ordeal. However, the power bank market has a lot to offer if you know what you’re looking at and what you’re looking for.

Here’s what you must consider to make an informed choice and purchase only the best power banks for your mobile devices.


Not even the best power banks are 100% efficient. The standard power efficiency for battery banks is about 60%-70%. However, some do deliver up to 90% of the battery juice. Look or test for power efficiency before making the purchase.

Latest Technology

It’s better to invest in the more advanced power banks that support Quick Charge 3.0 and USB-C standards if your smartphones too are acquainted with the aforementioned tech.

Power IQ or other similar technologies ensure safety as well as fast charging simultaneously.

Auto-on and auto-off is other extremely valuable feature of power banks.

Pass-through charging is a sought-after feature in power banks, which usually works by prioritizing the connected device and directing only the spare power to the battery bank.

Design of the Unit

Design and a sturdy, compact build is a major players when purchasing a power bank. Always opt for the smallest unit at the same capacity.

There are power banks that come with waterproof, shock-resistant, and matte finish outer casings. These are more durable and heavy-duty options than others in the market.

Typically, nearly all power banks come with 4 LED battery status indicators. However, if you wish to get the exact readout of the remaining battery, pick one with a built-in LCD screen.

Additional Features

LED torch/flashlight is increasingly being added to power banks. It can come in handy in certain situations, such as camping.

Input and Output Power Rating

The input rating on the power bank determines how fast it charges therefore you’d want one with higher Amps.

If a power bank has multiple outputs then the maximum total output determines how fast and efficiently each USB port delivers.

We all want to extend our smartphones’ battery life to the maximum possible and power banks are as close as it gets to this rather unreal aspiration. Before heading out shopping for power banks, ask yourself what you need most of all the features mentioned above and make the choice accordingly.

Editor’s Choice

The products reviewed in this article are the cream of the crop, however still you may find one power bank more fitting than another depending on your preferences and requirements.
If you’re looking for a battery bank with massive battery capacity and multiple Output USB ports, EasyAcc Monster 20000 mAh Power Bank is undoubtedly the perfect fit for you.
If you value portability above all, the candy-bar sized Anker Astro E1 offers the highest battery capacity among other power banks with comparable sizes.
However, we find ourselves increasingly inclined towards Anker PowerCore 20100. It stands out among all others for its amazing battery capacity, portability, unit design, integration of the latest technologies, and competitive price.
It is one of the best power banks out there and also among the highest rated ones on Amazon; Anker PowerCore 20100 keeps your smartphones and all other devices that charge via USB very well-functioning for an ample time period.

What do you think about our power banks review? Do let us know in the comments.


  • Victor Marquez

    Victor is the Editor in Chief at Techtyche. He tests the performance and quality of new VR boxes, headsets, pedals, etc. He got promoted to the Senior Game Tester position in 2021. His past experience makes him very qualified to review gadgets, speakers, VR, games, Xbox, laptops, and more. Feel free to check out his posts.

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