PowerBank (2xUSB)
Description
Powerbank from 9x18650 (~25.000mAh) Dual-USB output with QuickCharge function. Parts: * LCD Digital capacity tester for 3s battery pack * 9x18650 lithium cells * 3S BMS (Battery charger/protection circuit) * 5.5x2.1mm power jack for charger * Power switch for turn on/off USB output * Power button for turn on/off capacity tester * Few wires
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