Barnes & noble

3.7 V | 4000 mAh | 14.8 Wh

3.7 V | 6000 mAh | 22.2 Wh

3.7 V | 2600 mAh | 9.62 Wh

3.8 V | 6300 mAh | 23.94 Wh

3.7 V | 1500 mAh | 5.55 Wh