shaharsery / 5V-Power-Bank Star 6 Code Issues Pull requests This is an open source hardware 5V rechargeable power bank, intended for use with 1 Li-ion / Li-Pol 3.7V rechargeable battery cell. oshw power-bank battery-charger opensourcehardware li-ion-battery li-pol-battery 5v-recha 5v-rechargeable-power-bank Updated Aug 13, 2020