Product description UPS Board UPS Power Board Lite Supply Battery Pack Charger Accessory for Raspberry Zero Made of premium Printed Circuit Board, the UPS power board is not easy to damage, and very for long term use. Supports external power plug detection, also supports charging and discharging, has dual color charging status indicator. Theconvenient installation will save both your tiem and effoprt, and the standby time in actual test is up to 6 hours. Specification: Item Type: UPS Power Board Material: Printed Circuit Board Function: UPS power supply specially designed for Raspberry Zero. Charging Current: 400mA Output Voltage: 5.1V ±0.1V Output Current: 1.3A at 5V (no external adapter is plugged in, only battery power is used), 2A at 5V (when the external adapter is inserted). Power Measurement Accuracy: Error ±2% Battery Specification: 1 x 3.7V 1000mAh Lithium Battery(built in battery) PackageList: 1 x UPS Power Board 4 x Nut Notice: It is recommended to use a power adapter with a power of 5V2A and to the UPS Lite. Because when the lithium battery is low, the external power adapter not only needs to supply power to for Raspberry, but also needs to provide part of the current to the lithium battery. A UPS power supply specially designed for zero, which integrates a fuel chip (MAX17040G) and a 1000mAh lithium battery. UPS Lite removes the rarely used serial port function, optimizes the battery power supply circuit, and uses ultra low on MOS tube for power supply control, which improves the battery life. Theconvenient installation will save both your tiem and effoprt, and the standby time in actual test is up to 6 hours. Supports external power plug detection, also supports charging and discharging, has color charging status indicator. Made of premium Printed Circuit Board, the UPS power board is not easy to damage, and very for long term use.