Battery capacity: 3800mAH
Maximum discharge current: 1.8A
No-load output voltage: 5.1 0.1V / 5.1 - 0.1V
Standard charging current / voltage: 1.0A/5.0V
Lithium battery saturation voltage: 4.18V-4.2V
Working time: 4 hours

Battery capacity:3800mAh Maximum; Output current:1.8A, can be charged and supplied power to raspberry pi at the same time
The power supply is stable and the power is strong, which supports the power supply of most Raspberry Pi accessories
Raspberry Pi power pack as an outdoor portable power supply
Lithium battery expansion board is easy to install,you can use provided fastening standoffs,screws and nuts(included in the package) to fasten your Raspberry pi board.
Pls note: Once the battery is exhausted, a manual restart of the power supply is required