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This is a specialized device for a power bank of which I don't know the name brand. I have the ones I purchased as double 18650 batteries from a laptop battery still in parrellel to double the mAh capacity and are used as a DIY light in my storage shed in the back yard. Works OK and charges easily.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
Works well as long as you understand battery alignment and have the ability to solder a connector pin for easy connect/disconnect.
Verified purchase: Yes | Condition: New
gets too hot and doesnt output the rated output current, also it drains batteries faster than it should, for example, i charged my phone 2 times and the battery pack was empty, with an other charging board it can charge my phone over 10 times (3400mAh phone batt, battery pack, 17x 2600mAh samsung 18650 cells)
Verified purchase: Yes | Condition: New
Tested with single 103450 lion battery and each USB port could handle upto 1.75A before dropping below 4.75V Together could handle 2A I believe multiple batteries in parallel will make it work as advertised. Nice clear LCD and small LED torch which can be replaced easily.
Verified purchase: Yes | Condition: New