1W = 1V × 1A
〔mWh〕 ÷ 〔電圧(V)〕 = 〔mAh〕 〔Wh〕 ÷ 〔電圧(V)〕× 1000 = 〔mAh〕
7.6Wh ÷ 3.8V × 1000 = 2000mAh (2Ah)
2000mAh ÷ 1000 × 3.8V = 7.6Wh (7600mWh)