986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

donv · 02-10-2005, 10:40 AM

If the temperature dropped below freezing with your battery dead, you may not be able to bring it back to life - the cells may have frozen and if so they likely were damaged.

Also, the battery maintainer is just that - it is intended to keep a fully charged battery topped up, but not to recharge it from zero. Any load you place on the system will only make the maintainer lose the battle even faster. You will need a standard charger for real recharging (Wal-Mart has overnight versions for under $20 if I remember correctly).

02-10-2005, 10:40 AM	#2
donv Registered User Join Date: May 2002 Location: NW of Boston, MA Posts: 697	If the temperature dropped below freezing with your battery dead, you may not be able to bring it back to life - the cells may have frozen and if so they likely were damaged. Also, the battery maintainer is just that - it is intended to keep a fully charged battery topped up, but not to recharge it from zero. Any load you place on the system will only make the maintainer lose the battle even faster. You will need a standard charger for real recharging (Wal-Mart has overnight versions for under $20 if I remember correctly). __________________ 2001 Lapis/Black/Black, PSM, Rear Speaker Kit, Optima...