Button сell battery, capacity: 140mAh.
Nominal Voltage: 3.6
Good compatibility with: motherboard, C-MOS, S-RAM, RFID, electronic memory system, wristwatch, calculator, toy, electronic gift, cardpunch,
electronic cooking pot, electronic registry, electronic dictionary, blood sugar instrument, ear thermo gun,
ultra-thin remote control system, flash light products, electronic scale, toys, gifts, security doorbell lock,
medical instrument, daily electronic products such as water meter, electricity meter and gas meter. etc.