accessory battery

noun

The standard 12V rechargeable automotive lead-acid battery or the stand-in battery for a standard 12V automotive battery found in internal combustion engined vehicles, typically used to power the typical 12V systems, the accessories, infotainment, automotive computer, and electronic systems.

Meanings

nounaccessory battery (plural accessory batteries)

plural accessory batteries

  1. automotiveThe standard 12V rechargeable automotive lead-acid battery or the stand-in battery for a standard 12V automotive battery found in internal combustion engined vehicles, typically used to power the typical 12V systems, the accessories, infotainment, automotive computer, and electronic systems.
Cite this entry
APA

accessory battery. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/accessory%20battery

MLA

“accessory battery.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/accessory%20battery. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “accessory battery,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/accessory%20battery.

Source: accessory battery on Wiktionary, CC BY-SA 4.0.