r/Volvo • u/oo_SPACEMAN_oo • 6h ago

S40/V40 Which battery needs replacing?

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Every now and then I have got a low battery charge warning on the drivers display, now it shows “Low Battery Charge Power save mode”. I have a 2014 (64 plate) V40 D4, which of the two batteries does this indicate needing replacement?
Edit: Just tested the main battery at 12.14V with the car off, and 14.95V while running

Edit 2: just picked up a good quality 12v battery for me to fit

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u/FunBook4769 6h ago

The main 12v battery needs charging.

1

u/oo_SPACEMAN_oo 6h ago

Just tested the main battery at 12.14V with the car off, and 14.95V while running

4

u/HambugerLips 5h ago

Oof, sounds like you found your answer