Oct 7, 2010 update to the Porsche 911 Carrera project car

Battery Busted

A new battery got us back in the game, so we cruised over to a recent PCA meeting. Yes, there's some neat hardware in this photo.
We'd rather spend our money on sexier things, but it was time for a new battery.

It’s one of those bad feelings that we have all experienced: turn the key and nothing happens. Yep, our Porsche had a dead battery.

It’s one of those bad feelings that we have all experienced: Turn the key and nothing happens. Yep, our Porsche had a dead battery.

It came to life with a jump, but a long weekend on the charger didn’t reanimate the dead tissue. Since we didn’t know the battery’s purchase date—the case wasn’t marked—we looked for a replacement.

The books list a gigantic group 49 battery for our car. It checks in at 56.5 pounds. We figured we could find something lighter or better. Today’s absorbed glass mat batteries are appealing, and then there’s the lightweight units now on the market.

Since wanted to get the car up and running asap, we picked up a lighter group 91 battery from our local NAPA. The Porsche’s battery tray can accept this unit, and it weighs 36.5 pounds—yes, lighter options are out there, but generally not on the shelf here in Daytona Beach. We’re giving up some cranking amps, but considering we don’t see too much freezing temperatures we’ll take the gamble for now.

The car is now back among the living, and we’re still checking out our other options. At a minimum, we need to get a proper cover on the hot lead.

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Comments

View comments on the GRM forums
pinchvalve
pinchvalve MegaDork
10/7/10 7:08 p.m.

Where is that battery located???

David S. Wallens
David S. Wallens Editorial Director
10/7/10 7:46 p.m.

The battery is behind the left-side headlight.

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