Lithium Battery Power Expansion Board for Raspberry/Mobile Phone

Feature:It is suitable for lithium battery mobile power, and can make the motherboard work offline for up to 9 hours.There are two USB-A ports on the board, one can power the Pi motherboard. If needed, another can power devices such as embedded LCD screens.Integrated an imported lithium battery charge / boost management chip. with your own battery and weigh only 80g.Parameters:Battery capacity: 3800mAHLarge discharge current: 1.8ANo-load output voltage: 5.1V0.1VStandard charging current / voltage: 1.0A@5.0VLithium battery full cut-off voltage: 4.18V-4.2VCHG LED function:On: The charger performs constant current charging.Off: The charger performs floating charging until the lithium battery is fully charged.ON LED function:On: USB-A interface outputs 5VOff: No voltage is output from the USB-A interface.Package includes:1 xPower Expansion Board