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.

Features:
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