Match My Battery

16340 vs CR123A

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

Verdict
Not equivalent
Confidence
97%
Reviewed
2026-08-09
Not equivalent

16340 and CR123A are different battery formats

One or more critical dimensions, voltage, chemistry or form attributes differ.

Return to the exact code or measure the original cell and verify the device manual.

Specification16340CR123A
Dimensions16 × 34 mm17 × 34.5 mm
Nominal voltage3.6 V3 V
ChemistryLithium ionLithium manganese dioxide
RechargeableYesNo
Typical useRechargeable lights, battery packs, specialty electronicsCameras, security sensors, specialty lights
View 16340 profile View CR123A profile

Why this verdict

  • Dimensions differ: 16 × 34 mm versus 17 × 34.5 mm.
  • Voltage: 3.6 V versus 3 V.
  • Chemistry: Lithium ion versus Lithium manganese dioxide.

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. Duracell — Battery chemistry technical bulletins

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

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

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

  3. International Electrotechnical Commission — IEC 60086-2-2:2026 — Physical and electrical specifications of lithium batteries

    Standardized primary-lithium dimensions and electrical specification context.

  4. Energizer — Battery Replacement Guide

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