PowerMaster Power Bank With Flashlight 12000mAh

PowerMaster Power Bank With Flashlight 12000mAh

PowerMaster Power Bank 12000mAh at a glance

Key specs


12000 mAh

44 Wh

Dimensions (LxWxH)

4 x 3 x 0.9 in

10.16 x 7.62 x 2.29 cm


10.1 oz / 286 g

Charging technology

Charging time: 6 h

Adaptive charging

PBE metrics



341.92 mAh/$


41.96 mAh/g

1188.12 mAh/oz


USB Type A

USB Type A

Output: 5V/2.1A
USB Type A

USB Type A

Output: 5V/1A
Micro USB port

Micro USB

Input: 5V/2A

Flight status

Under 100 Wh

Status: Safe

The power bank is safe to take on board. It's under the specified TSA limit of 100 Wh. Read more about taking power banks on planes.

Other features

LED power indicator


Overheating protection

Short circuit protection

Surge protection

Overcurrent protection

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Charging capacity calculator

Use the search bar below and find out exactly how many times can the PowerMaster Power Bank 12000mAh charge your smartphone battery

PowerMaster Ultra-Compact External Battery Pack Review

The slim and powerful PowerMaster 12000mAh power bank supports a wide range of devices from the Android and Apple product lines. It has two different USB ports, which are able to output 2.1A respectively 1A of charge. LED indicators will also provide you with an accurate reading of how much juice is left in your battery pack. This PowerMaster power bank also has a very nice design with a built-in flashlight, allowing you to lit up dark areas when you’re on-the-go.

Charging technology

The PowerMaster 12000mAh external battery pack is fully compatible with Android and Apple mobile devices and tablets. It can provide 3.5  charges to an iPhone 8, 2.5 charges for an iPhone X, 2 charges for Samsung S9, and one full charge to an iPad Air.

power bank with flashlight

This device is also compatible with the iPhone XS Max/XR/XS/8/8 Plus/X, Samsung S10/ S9/@9 Plus/S8/S8 Plus/S7/S7 Edge, iPad, and Kindle.

It even has two USB ports with 3.1A total output, allowing you to power-up your connected devices at the same time. One USB port has a rating of 5V/2.1A for a fast charging experience and the other has 5V/1A, with a total of 5V/3.1A. You can refresh the PowerMaster power bank via the micro-USB input port with a rating of 5V/2A.


The PowerMaster power bank is an average-sized external battery pack, measuring 4” long x 3” wide x 0.9” thick, which can fit perfectly into the palm of your hand. It’s also very light, weighing just 10.1 ounces, allowing you to carry it around without any issues while you’re on-the-go. The wallet-like size makes it easy to store right into your pocket, bag, or just about any small space you can find.  It’s convenient for you to take while you’re traveling or using it as part of your daily routine.

PowerMaster power bank with flashlight

You won’t have any issues whatsoever taking the external battery pack with you on a flight. Since it only has 44Wh, it’s extremely safe and falls below the 100Wh restriction set by the TSA.

The PowerMaster 12000mAh portable charger is a bit similar in size and weight to BENANNA’s 10000mAh device (5.5” x 2.9” x 0.5”, 9.1 ounces). If you’re looking for something compact and lightweight, either one of these devices would be great for you.

Look and feel

The slim and stylish PowerMaster 12000mAh power bank features an outer shell with soft, curved edges that provide a comfortable grip for the user. You’ll find that the power bank contains a power button, two micro-USB ports, and one USB port on the bottom silver panel. This setup makes it easy to connect your USB cables to the device while keeping it from getting tangled up.

Meanwhile, the middle of the front face contains a black stripe that extends across the charger. On the bottom of the stripe, you’ll find the four blue LED indicator lights and on the opposite end, PowerMaster’s white logo.  The LED lights display how much power is left in the power bank. One light indicates 25% of power is remaining, two indicates 50%, three indicates 75% and finally, four indicates 100%.

Durability & build quality

There aren’t any shock-resistant and/or water-resistant ratings for the PowerMaster power bank, but it still has some built-in safety features that will give you peace of mind. Multi-layer protection helps to ensure your devices are completely safe while charging. It contains advanced circuitry and built-in safeguards to keep devices protected from overheating, overcharging, overload, short-circuit, over-voltage, over-power, and high temperatures.

PowerMaster Safety

It can also automatically identify and deliver the best charging current for the connected device while delivering the quickest charge in the safest way possible. The PowerMaster power bank also runs on a premium lithium-ion battery cell, ensuring a safe and reliable charge for the battery pack.

Unfortunately, this power bank doesn’t have any details on the manufacturer’s warranty.



Fast Charging

Compatible with Apple/Android devices

Built-in flashlight

Built-in safeguards



One port only has an output rating of 1A

Final Thoughts

Basically, this PowerMaster 12000mAh is a classic power bank with a flashlight. It’s compatible with devices from Apple and Android with a powerful output rating totaling 3.1A. The micro-USB ports will charge your smartphones and tablets rather quickly. The soft grip is a nice touch too. You can carry it around with ease while you’re traveling. Built-in safety features also give you peace of mind so it will keep your devices completely safe with a reliable charging experience. Overall, this PowerMaster power bank is perfect if you’re looking for something compact, powerful and lightweight.

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