3pcs Lithium Battery Power Expansion Board for Raspberry/Mobile Phone

Feature It is suitable for lithium battery 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 1V ± 0 1VStandard charging current voltage 1 0A 5 0VLithium battery full cut off voltage 4 18V 4 2V CHG 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 3 x Power Expansion Board