PiSugar S is a battery module specially designed for Raspberry Pi Zero series. It is a complete UPS that maximizes the zero portability of the Raspberry Pi. Features 5V2A output, very suitable for Raspberry Pi zero series Bottom link, does not affect GPIO expansion TypeC + Micro USB charging Support simultaneous charging and discharging. UPS function Low battery safe shutdown Physical disconnect switch Expansion through wireless charging and solar charging Electrical Specifications Input: 5V-2A Output: 5V-2Amax Battery capacity: 1200mah Battery voltage: 4.2Vmax Package contains: 1battery module 4 x screws More details can be found on Github.