BPK5 Battery nominal 7,2V / 1600mAh / 11,52 Wh
Battery real 7,2V / 1400mAh (see Teardown)
Tests
measurement by ludwich (29-06-2023)
1350mAh @1A-to-6V (Fresh Akku on second charge)
Overcharge-Protection: todo
Deep-Discharge-Protection: 5,3V Cutoff
(Chart from MARCOS)