SR621SW / Casio Watch Coin Battery


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)
Designation: IEC-SR60
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


Is compatiable with: Casio Watches (including G-Shock, ProTrek, Edifice, Baby-G, Beside, MTP, OutGear and others models). You just need to know its name (such as SR621SW on the battery itself)

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

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