I HAVE THE S40 2003 AND I AM ABOUT TO CHANGE THE BATTERY. THE REPAIR CENTER I'M GOING TOLD ME THAT ONLY A VOLVO BATTERY SHOULD BE BOUGHT BECAUSE THE CAR NEEDS CERTAIN VOLTAGE (FOR THE AIRBAGS FOR EXAMPLE AND IF THE VOLTAGE IS NOT PRECISE THE A/B LIGHT WILL TURN ON) IF ANYTHING ELSE IS USED THERE MAY BE PROBLEM IN THE ELECTRICAL OF THE CAR.
I NEED YOUR OPINION.
I THINK THEY TRY TO SELL ME THEIR OWN BATTERIES.

THANKS A LOT.
JOHN GREECE

 

you don't need to stick with the oem volvo battery, that is a lie...i know plenty of guys using the optima red tops...these are very popular, but are a bit more money than most batteries...

 

thank you.

 

That excuse for recommending a Volvo battery is ludicrous. I'd find another shop. A battery is a battery - it's not some complicated electronic device.

I've been running a Costco/Kirkland battery for a few years with no problems.