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Part lookup / EV and hybrid / 12-volt auxiliary battery

17 · EV EV and hybrid

12-volt auxiliary battery

for any vehicle · choose yours on the lookup

What it does

Powers the computers that switch the high-voltage system on. A weak one causes no-start messages.

Read the ev and hybrid guide →

Fitment tips

  1. High-voltage parts should only be serviced by someone trained to work on them, with the system powered down as the maker describes.
  2. Many hybrids and EVs still use ordinary 12-volt batteries, filters, and brakes.
  3. Choose your vehicle on the part lookup first, so the retailer searches below include it.

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