312 specifications
Canonical code312
Formbutton
RechargeableNo
Drain markingNot specified
Typical applications
- Hearing aids
- assistive listening devices
Replacement decision
Resolve the original marking to this profile, then confirm nominal voltage, chemistry, dimensions, polarity and any drain or terminal suffix. Capacity alone does not establish interchangeability.
Same-size batteries to review carefully
These profiles share the nominal physical envelope. They are not automatically equivalent.
392
Silver oxide
1.55 V
7.9 × 3.6 mm
384
Silver oxide
1.55 V
7.9 × 3.6 mm
LR736
Alkaline
1.5 V
7.9 × 3.6 mm
Reviewed comparisons
312 vs LR736Same size · different voltage312 vs 392Same size · different voltage312 vs 384Same size · different voltage312 vs 13Same diameter · different height
Technical sources
- International Electrotechnical Commission — IEC 60086-1:2026 — Primary batteries, general requirements
Primary-battery nomenclature, form, fit, function, terminal and electrochemical-system framework.
- Energizer — Battery Replacement Guide
Cross-reference codes and manufacturer guidance to replace the same size and type together.
- Duracell — Battery Cross Reference Chart
Independent manufacturer cross-reference families and corresponding product numbers.
- Duracell — Battery chemistry technical bulletins
Alkaline, lithium-manganese-dioxide, zinc-air and silver-oxide chemistry behavior.
- U.S. Consumer Product Safety Commission — Button Cell and Coin Battery Safety
Coin-cell ingestion and household handling safety boundary.