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trickle charger

British  

noun

  1. a small mains-operated battery charger, esp one that delivers less than 5 amperes and is used by car owners

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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If you’re planning a more extended stay in the garage, consider hooking up a battery trickle charger, which plugs into house current and maintains the battery, assuming it’s not completely dead to begin with.

From New York Times • May 3, 2020

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.