Portable Dual USB 20000mAh External Battery Power Bank w/ Adapter for GALAXY S4 / i9500 + More

Pros: - It's a great device fro powering up energy hungry devices such as tablets, smart phones, etc. - It comes with a lot of adapter which allows you to connect almost any gadget. - It's has a smart ON function, when it senses a device it's turns automatically on. - The power button only shows the status of the battery and it won't keep the leds lit during operation like other models do.

Cons: - I could not fund any. Maybe someday I'll take it apart and see what cells it uses and the the exact capacity

Other: - It's useful, it charges a lot of devices and a lot of times which lead me to believe that the real capacity is over 10.000+. It has a great price.

Pros: I haven't used it, but the price is the best you can find on the internet.

Cons: I haven't used it and until now I don't have any cons. Maybe, it should hava a charger. I don't have one, I must make a new order for the charger

Other: I bought it for my Samsung Galaxy Tab 2 10.1 inch P5100. Do you recomand me to use this Portable Dual USB 20000mAh External Battery Power Bank with Galaxy Tab 2 10.1?

Pros: Big capacity and easy to see charged level display. It's usable for all purpose of charging. Might be suitable for travering and outdoor use.

Cons: Little bit big and heave to EDC(every day carry). Output voltage is little bit low for some tablets PC. Re charging this product is need for long time. It's have quick charge mode is better to this product.

Other: This product is very suitable for expand using time of tablet PC. This product is charge up 4 or 5 times to 7 inch tablet PC.

Pros: Ok, this is very useful thing, i can recharge my iphone 5 more than 10 times ( i think like that) Its very cool to have a full battery on my phone/ipad Best proce on dx.com

Cons: I got not a 20k mah battery i got only 15 (dont know why) One of 4 led indicators not work When u charge two devices at one time its start to squeak

Other: Glad pribobreteniyu goods, but can also improve the quality of

Pros: Easy to see battery level indications. Long lasting battery lives to ensure your devices have the same. easy to use and many connector to compatible any device.

Cons: Little bit big and heavy to use every day and carry. no pouch or any cover to carry.

Other: i buy two for everyday use for many device. 'big ppwer become great resp0nsbility':>

Pros: It's got 2 output ports on it so you can charge multiple devices simultaneously. Large capacity.

Cons: The plugs are not on an end, so it cannot be easily put in a pocket whilst plugged in. Doesn't appear to have the stated capacity, should in theory fully charge my phone 10 times - or give me nearly a whole days run time. Realistically, it seems to go dead after about 8 hours of use. Cord that comes with it has adapters for all the appropriate connectors. Adapter slips off easily.

Other: Could use a small redesign, but it's the best battery I've seen for the price for long haul usage of a portable device.