Highfields Amateur Radio Club
Glossary Appendix.
copyright date

Battery Details.

Was commonly used in small hand lanterns and bicycle headlights from 1950s to 1970s.

Equivalents:

2R25?, 800, 900, No. 800, V800,

Image
not to scale. 		Common
Name. 		Dimensions.
Length × Width × Height. 		Chemical Composition. Nominal Voltage.
battery
Click for larger image
800 70 mm × 35 mm × 100 mm

Contacts:
Top Brass Strip Positive.
Lower Brass Strip (between Cells) Negative.

Zinc Chloride 3.0 volts.

Can be replaced by 2 F cells (see below) or a suitably modified 2 × C or 2 × D cell holder (depending on room in battery compartment).

If you are feeling really adventurous and you can find a brand of Lantern battery that is packed with 4 R25 cells or a couple of "F" cells, you could make an 800 by using a couple of cardboard tubes (the cells need to be insulated from each other) a couple of brass strips and a short piece of wire.

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