not to scale.
Name.
Length × Diameter.
Contacts:
Small snaps, 1 either end.
Silver Oxide (Ag2O),
(Mercury, now banned).
(Mercury were 9.45 volts).
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. |
|---|---|---|---|---|
|
| A177. | 48.5 mm × 13.9 mm Contacts: | Alkaline, Silver Oxide (Ag2O), (Mercury, now banned). | 10.5 volts. (Mercury were 9.45 volts). |