Highfields Amateur Radio Club
Glossary Appendix.
copyright date

Battery Details.

May have solder tags fitted for application.

Equivalents:

ML421

Image
not to scale.
Common
Name.
Dimensions.

Diameter × Thickness.
Chemical Composition. Nominal Voltage.
battery ML421. 4.8 mm × 2.1 mm

Contacts:

Case and flat base Positive.
Raised area Negative.

Manganese Lithium Rechargeable. 3 volts
(2.3 mAh).

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