Single-cell Li-ion/LiPo charger using TP4056 with a battery-fed MT3608 fixed 5.0 V boost output, 500 mA charge setup, status LEDs... show moreSingle-cell Li-ion/LiPo charger using TP4056 with a battery-fed MT3608 fixed 5.0 V boost output, 500 mA charge setup, status...