What does "ampere-hour" mean?

a unit of electric charge, equal to the charge transferred by a current of one ampere in one hour through a specified point in a circuit, equal to 3600 coulombs.

What is a synonym for "ampere-hour"?

Common synonyms include: amp-hour, kilowatt hour, unit.

Ampere-hour

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
a unit of electric charge, equal to the charge transferred by a current of one ampere in one hour through a specified point in a circuit, equal to 3600 coulombs.
2
a unit of charge equal to 3600 coulombs wordnet

Synonyms

All synonyms

amp-hour kilowatt hour unit

Etymology

established 1880-85, from ampere + hour.

Related phrases

amp-hr amp. hr.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.