364 vs 377

A reviewed side-by-side decision based on form, fit, electrical specification and application limits.

Verdict
Same diameter · different height
Confidence
98%
Reviewed
2026-08-09
Same diameter · different height

364 and 377 are different thicknesses

Both cells are about 6.8 mm in diameter, but their heights are 2.15 mm and 2.6 mm.

Use the specified height; do not rely on contact spring travel.

Specification364377
Dimensions6.8 × 2.15 mm6.8 × 2.6 mm
Nominal voltage1.55 V1.55 V
ChemistrySilver oxideSilver oxide
RechargeableNoNo
Typical useAnalog watches, calculators, low-drain instrumentsAnalog watches, calculators, low-drain instruments

Why this verdict

  • Diameter matches.
  • Height and capacity envelope differ.

What to verify in the device

Check the original compartment label, the current manual, polarity, terminal style and whether the device explicitly permits a chemistry or rechargeable alternative.

Sources for these profiles

  1. International Electrotechnical Commission — IEC 60086-1:2026 — Primary batteries, general requirements

    Primary-battery nomenclature, form, fit, function, terminal and electrochemical-system framework.

  2. Energizer — Battery Replacement Guide

    Cross-reference codes and manufacturer guidance to replace the same size and type together.

  3. Duracell — Battery Cross Reference Chart

    Independent manufacturer cross-reference families and corresponding product numbers.

  4. Duracell — Battery chemistry technical bulletins

    Alkaline, lithium-manganese-dioxide, zinc-air and silver-oxide chemistry behavior.