Match My Battery

Rechargeable

26650 battery replacement and equivalents

26650 is a 3.6 V lithium ion cylindrical battery measuring 26 × 65 mm. Match the complete specification before treating another marking as a replacement.

No reviewed alternate codes
Nominal voltage
3.6 V
Dimensions
26 × 65 mm
Chemistry
Lithium ion

26650 specifications

Canonical code26650
Formcylindrical
RechargeableYes
Drain markingNot specified

Typical applications

  • Rechargeable lights
  • battery packs
  • specialty electronics

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.

Technical sources

  1. Duracell — Battery chemistry technical bulletins

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