Electrowan
- Jan 29, 2016
- 4
- Joined
- Jan 29, 2016
- Messages
- 4
I have a Auckey 20000 mAH battery and it has 2 usb ports and im wondering if i take those 2 USB ports and plug in 2 modifies USB chargers and put them in series will it make 10 volts and will it be safe for the power bank
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