Questions tagged [powerbanks]

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is it possible to get 20 volt 2a from 2 powerbank which have 5v ,2a 4x output?

is it possible to get 20 volt , 2 a from 2 power bank by connecting 4 usb port (each 5 v ,2.0a) . if can what should i use to prevent damage , short circuit , and catastrophic . i making a device ...
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How to unite three different batteries in to one powerbank [closed]

I'm absolute beginner in electrical engineering and I need help in building a powerbank using three different batteries with different characteristics. I have a sudden passion to implement this ...
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Two 5V2A powerbanks draw different current under same conditions?

I have 2 different powerbanks, both have 10000 mAh and both are rated for 5V 2A power input. I have noticed that they draw a different amount of current despite using the exact same charger (5V 3A), ...