For TSC Alpha 3R
7.4V 2500mAh/18.5WH
For TSC A3R-52048003
7.2V 3300mAh/21.6Wh
For TSC TDM-BAT30S
7.4V 3030mAh 22.422Wh
For TSC TDM-BAT20
7.4V 1130mAh 8.13Wh