LR1142 vs LR1154

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

LR1142 and LR1154 are different thicknesses

Both cells are about 11.6 mm in diameter, but their heights are 4.2 mm and 5.4 mm.

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

SpecificationLR1142LR1154
Dimensions11.6 × 4.2 mm11.6 × 5.4 mm
Nominal voltage1.5 V1.5 V
ChemistryAlkaline manganese dioxideAlkaline manganese dioxide
RechargeableNoNo
Typical useToys, calculators, small lightsToys, calculators, small lights

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.