Highfields Amateur Radio Club
Glossary Appendix.

Battery Details.

These can be difficult to find, however Westfalia, here in the UK, sell an adaptor case (Item No. 430033) that takes 3 × AA batteries, converting them to the size, shape and contacts of the 3LR12. Ideal for rechargeables too.

Equivalents:

1041, 1203, 1289, 3LR12, 3R12, 3R12G, 3R12R, 4.5 Volt, 3336, 4012, 4192, LR12, GP312, MN1203, Pocketable Battery,

Image
not to scale.
Common
Name.
Dimensions.
Length × Width × Height.
Chemical Composition. Nominal Voltage.
4.5 Volt. 67 mm × 22 mm × 62 mm

Contacts: 2 brass spring strips:
Positive contact 19 × 6 mm.
Negative contact 30 × 6 mm.

Carbon Zinc (Standard)

Zinc Chloride (Heavy Duty).

4.5 volts.

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