Coin Battery type: SR621SW (Silver Oxide (Zn/Ag2O));
Battery price: 7$ [average Amazon price. We may earn a commission on qualifying purchases from our links to Amazon]
Chemical System: Silver Oxide (Zn/Ag2O)
Nominal Voltage: 1.55 Volts
Typical Capacity: 23 mAh* (to 1.2 volts)
Capacity Test: 68K ohm continuous drain at 21°C
Typical Weight: 0.37 grams
Typical Volume: 0.08 cubic centimeters
Impedance (40 Hz): 5 to 15 ohms
WARNING ABOUT SR621SW / Casio Watch Coin Battery:
- Forbid short-circuit, charge between”+” and”-“.
- Forbid over-discharge, fire, damage.
- Finish sealing less more 5 seconds at 200 C~250 C;
- Take out the battery when discharging to
cut-off voltage, and embedding it under the
ground or jump in the deep water.
Will be useful: Watch Repair Kits