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EV charging glossary

Industry jargon

Lead-acid battery

A lead-acid battery is a rechargeable battery chemistry using lead-based electrodes and a sulphuric-acid electrolyte. It is one of the oldest rechargeable battery technologies still used at large scale. In vehicles, lead-acid batteries are commonly associated with low-voltage auxiliary systems such as the 12 V supply. They are not the normal traction-battery chemistry in modern passenger BEVs. Some EVs now use other chemistries for their auxiliary battery, so "12 V battery" and "lead-acid battery" should not be treated as exact synonyms.

Related terms

Battery

Lithium-ion battery

NiCad
Browse the full glossary Interactive periodic table

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