Powerbank lipo 3s 4000mAh

For assembly follow the format included
https://youtu.be/eXzP2sUb6Sg
Powerbank lipo battery 3s 11.1 v 4000 mAh car adapter
In house there is provided a digital voltmeter The bars for the negative in the cigarette lighter hole must be separated, to a battery and the other to the voltmeter while the positive will go direct to the central pole and a cigarette lighter to the voltmeter in this way the negative adapter usb will by switch

Nell'alloggio è previsto un voltmetro digitale Le barrett