not to scale.
Name.
Diameter × Thickness.
Contacts:
Case and flat base Positive.
Raised area Negative
Contacts:
Case and flat base Positive.
Raised area Negative
Silver Oxide (Ag2O).
1.55 volts(Ag2O).
This 201 battery has been discontinued a close match is the LR54. Details of both are shown below with the difference highlighted.
| Image not to scale. | Common Name. | Dimensions. Diameter × Thickness. | Chemical Composition. | Nominal Voltage. |
|---|---|---|---|---|
|
| 201. | 11.6 mm × 3.3 mm Contacts: | Silver Oxide (Ag2O). | 1.55 volts(Ag2O). |
|
| LR54. | 11.6 mm × 3.1 mm Contacts: | Alkaline, Silver Oxide (Ag2O). | 1.5 volts. 1.55 volts(Ag2O). |