986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - 98 Boxster is constantly killing battery cells

wiebuschk · 11-25-2023, 01:45 PM

I had a bad rectifier in my alternator running down my battery overnight. Not totally dead but run down. I put in a new alternator and problems are gone. It was also overcharging when running. It should charge at 13 to 14 volts.

11-25-2023, 01:45 PM	#3
wiebuschk Registered User Join Date: Jan 2023 Location: Beaumont Texas Posts: 67	I had a bad rectifier in my alternator running down my battery overnight. Not totally dead but run down. I put in a new alternator and problems are gone. It was also overcharging when running. It should charge at 13 to 14 volts.