[dBlast]

Yesterday I went out for lunch. I start the car - no problem. I drive to a restaurant 15 mins, park for half an hour, go to start the car - nothing, battery is dead as a door knob. :angry: (Thankfully there was someone in the parking lot with jumper cables.)

I have had the car for 4 and half years and never had a problem starting the car. About 2000km ago I had a FC UDP installed. Could the underdrive pulley have slowly drained the battery to the point where it could start the engine and then an hour later be completely dead? Or is it just a fluke and the battery died of natural causes.

[scoobasteve]

i'd say natural causes. or there was some other drain.... unless youre operating a big stereo.

[CanadaSVT]

Batteries don't last forever. 5 years is very normal.