2400mah 7.4v battery for 7",8",9.7",10" tablets 1)Nominal voltage:7.4V 2)Nominal capacity:2400mAh 3)Size:6.4*39* ... . high safety: built-in protection, overcharge protection, guarantee safety usage.7. environmental protection requirements: not contain harmful substances like mercury. RoHS ... battery in a cool dry surrounding if its standby. 2400mah 7.4v battery for 7",8",9.7",10" tablets