2004 Boxster S Dead Battery Advice? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

90red · 02-23-2007, 06:57 PM

The 04 I just bought already has a replacement battery. It only has 7400 miles, so I'm sure it sat alot. I read some old posts, and someone last year ran into the same problem. The warranty didn't cover it, $280 for a factory replacement, or about a $100 for an interstate MTP-91. Have the battery and alternator tested to see what the culprit is.

Brucelee · 02-24-2007, 05:27 AM

The battery COULD very easily by shot. The OEM batteries from Porsche are JUNK and the Boxster draws quite a bit when just sitting. These batteries do not do well without a lot of driving.

You can buy a fine battery at Coscto for $52. plus tax and install yourself, it is easy.

Since a charge is likely free (if you have a charger, highly recommended) give it 24 hour charge and see what happends.

Odds are it is a goner.

Bosch batteries are the pits.

Breezer · 02-24-2007, 09:53 AM

Costco was still closed when I went by so I ended up at AutoZone. The battery came back as bad on their tester. In turn, bought a Duralast for $69. It appears to be charging fine now and good to go. Thanks for the assitance.

By the way, this 2004S is for sale in So Cal. I will post a link to autotrader in the classified section. Thanks again.