Highfields Amateur Radio Club
Glossary Appendix.
copyright date

Battery Details.

Equivalents:

7LR44, 7MR9, 7MR44, 7NR44, 177A, 1606, 1606A, 1606M, A177, E177, E-177, EN177, EN177A, EN177S, H-7C, PC177A, PC177S, S177, TR-177, TR-177R, TR177R,

Image
not to scale.
Common
Name.
Dimensions.
Length × Diameter.
Chemical Composition. Nominal Voltage.
battery E177. 48.5 mm × 13.9 mm

Contacts:
Small snaps, 1 either end.

Alkaline,

Silver Oxide (Ag2O),

(Mercury, now banned).

10.5 volts.

(Mercury were 9.45 volts).

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