Robert Linton

Has anyone tried this http://www.voltphreaks.com/home.html -- 12V battery (VPHR18) that weighs 6 lbs. For the price, $675, on a per pound basis, better weight savings for a Porsche than many other things.

NP993

Does their website give specs for the battery? At one point I put an Odyssey PC680 battery (14 pounds) in my '77 Carrera 3.0 track car, and found that it was just not enough battery. No cranking reserve, terrible cold weather performance, if the car sat for a couple of weeks the battery would be dead, etc. In other words, nice and light, but not feasible for anything but a 100% track car.

Robert Linton

Nominal voltage 12.8V
Cranking Amps (CA) 850 amps
Cold Cranking Amps (CCA) 675 amps
Reserve capacity (RC) 40 minutes
Capacity 18Ah
Terminal type 5/16" gold plated ring
Working temperature -22°F to 140°F
Dimensions 8.3x5x3 inches (not including terminals/flanges)
Weight 6 pounds

Rick

I use the Odyseey in my race car...it's great but I wouldn't use it for a regular car - especially in the winter.