18650

Translingual

An 18650 compared to a AA (LR6) battery

Etymology

18 +‎ 65 +‎ 0. Named for the nominal dimensions of a fresh battery: 18 millimeter diameter by 65 millimeter length. The final 0 is common to the name of many cylindrical cell batteries.

Noun

18650

1. A cylindrical rechargeable battery cell format for lithium-ion chemistry batteries, commonly used as component batteries in battery packs for some electronics and electric cars.

Synonyms

• 1865

See also

• 2170 / 21700
• 4680 / 46800

English

Two 18650s compared to a CR123A lithium battery

Pronunciation

Pronounced as: eighteen six fifty.

Noun

18650 (plural 18650s)

1. 18650 (electrochemical battery of a secondary storage cell)

Synonyms

• 1865

See also

• 21700 / 2170