Lithium Battery Pack Expansion Board integrates an imported lithium charge,boost management chip. It is made in strict accordance with the size of international raspberry pi HAT extended board HAT.

Battery capacity: 3800mAH Maximum
Maximum output current: 1.8A
Output voltage: 5.1V ± 0.1V
Standard charging current / voltage: 1.0A/5.0V
Cut-off voltage of fully charging: 4.18V - 4.2V

Package included:
1 x Lithium Battery Expansion board (with lithium battery)
4 x Copper standoff
4 x Screw
4 x Nut
1 x Micro USB cable