6 V | 2100 mAh | 12.6 Wh

6 V | 4200 mAh | 25.2 Wh

7.4 V | 2000 mAh | 14.8 Wh

7.4 V | 2900 mAh | 21.46 Wh

7.4 V | 3400 mAh | 25.16 Wh