Lumsing 10400mAh Power Bank External Battery: Slim, Powerful, & Cheap

Do you need a way to keep your phone or tablet powered when you are out and about? Then you should look no further than the Lumsing 10400mAh Power Bank External Battery. Able to charge your mobile phone or tablet repeatedly without being plugged in again, the Harmonica Style Power Bank is slim, powerful, and at $21, it’s amazingly CHEAP.

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For just a smidgen over $20, you might expect some cheaply made hulk of plastic that weighs a ton and is, well, ugly. But the Lumsing 10400mAh Power Bank is actually a very well made and classy looking tool. The battery’s packaging is surprisingly nice, and it includes a velvety carrying pouch, a microUSB cable, a user manual, and an invitation to join the Lumsing power user program.

Lumsing 10400mAh Power Bank Specifications
  • Capacity: 10400mAh
  • Battery Type: High quality Samsung battery Cell
  • Input: Micro USB 5V 1.5A
  • Output: USB 5V 1A&5v 2.1A
  • Size: 5.43x 2.32 x 0.82 inches
  • Weight: 12.5 oz
  • Product Warranty: One Full Year

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There are two versions of the Power Bank available, champagne gold and brushed silver or shiny black and brushed silver, The Power Bank absolutely resembles a harmonica, and on the side where you would ordinarily put your mouth, you’ll find a 1amp USB port, a 2amp USB port (great for tablets!), four LED lights that indicate the battery level when charging or when being used. The button next to the LEDs will start the charger.

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There’s a microUSB charging port on the left side of the external battery. Lumsing says that it takes about 6 hours to fully charge from empty if you are doing it from a laptop’s USB port, and that seems about right, but you can make the process go more quickly by plugging it into a (not included) 5 V 2.1amp wall charger.

If you have a device that uses a MicroUSB charger, you can use the same cable that charges the battery to charge your phone. If you use an iOS product, then you’ll need to supply your own 30-pin or Lightning cable.

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The Lumsing 10400mAh Power Bank feels really good in hand, and it is slim enough that it can slip into almost any pocket. It’s one of those things that you’ll want to keep charged and in your gear bag, because when you need it, it will be extremely handy.

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I’m blown away by the Power Banks good looks, high-capacity, and cheap price. If you are looking for an external battery pack, you can’t go wrong with this one.

The Lumsing 10400mAh Power Bank External Battery retails for $22.99, and it is available on Amazon [affiliate link]. You’ll get an additional $2 off if you use the code ILUMSING.

Source: Manufacturer supplied review sample

What I Like: 10400mAh is enough to charge most phones at least three times — maybe more; Sleek, slim, good-looking design; So inexpensive that it makes a great back to school gift idea or stocking stuffer

What Needs Improvement: Nothing — it works well, and the price is right!

Lumsing asked that I tell you that they are giving away Eight 6000mAh external batteries on Facebook. You can enter to win one by going here.

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We were sent two Lumsing 10400mAh Power Bank External Battery, so we will be giving away the unopened and unused battery. Good luck!

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About the Author

Judie Lipsett Stanford
I've had a fascination with all types of gadgets and gizmos since I was a child, beginning with the toy robot that my grandmother gave my brother - which I promptly "relieved him of" in 1973. I'm a self-professed gadget magpie. I can't tell you how everything works, but I'm known world-wide for using a product until I have a full understanding of what it does, what its limitations are, and if it excels in any given area — or not.