saalboy

Hello everyone!
Any idea why the battery looses it's charge while a car is parked for longer than a couple of weeks.
Thanx

josephsc

Check the switch in the door jam -- that has been the cause of slow battery drain problem for others in the past (do a search for old threads).

jim944s2

I gave up trying to fix my battery drain, I just disconnect the battery after I drive mine.

saalboy

Hi Joseph,
Would you, please, tell me what do you mean by cheking the door jam switch. What does it do? Is that a cabin light switch?
Thanks, Alex

Vjgtrybno1

Yes, they can malfunction and cause a drain. Have you used a multimeter to test the drain at the battery with everything off? search the threads here and in the 944 forum for battery drain and you will get the normal readings. I can't remember them off the top.

adrian_jaye

Best way to check is the following

1> diconnect battery earth
2> Connect a meter (amps)
3> one terminal goes to the disconnected earth lead/ other to the battry neg
4> DO NOT ATTEMPT TO START CAR
5> check the reading, can't remember what they usually are, only about 10-20millioamps

6> then pull one fuse out at a time
7> when the reading goes down a lot, you've found the source of the current drain, look up on the fusebox and see what that circuit looks after

here are a few suspects

1> boot light
2> hood light
3> interior light
4> glovebox light
5> alarm
6> stereo

hope this helps