Date: Mon, 23 Dec 2002 10:48:01 GMT From: Walter <walternopsameysautoelectric.com> Subject: Re: draining battery
I have found some cars like yours to have bad voltage regulators in their alternators. It is supposed to get a pulse to start charging, but sometimes they never let go of that pulse. The alternator stays "on" all the time, discharging the battery over a period of time. If you follow everyone else's advice, after pulling all the fuses and still having the draw, try disconnecting the heavy wire from the back of your alternator. If your draw is suddenly gone, chances are good you have a bad voltage regulator. Walter gwilym wrote: > Hi all, I have a 1990 saab 900i and the battery keeps draining if I dont > start the car for one day. The AA have been out twice and inform me it is > not their battery which is 1 year old but something else that is draining > excessively. I use the car in the week everyday and there is no problem, > just if I leave it a day...all the lights are definitely off, I even > disconnected the radio last time because it has a flashing light. The AA > said its charging fine so its not the alternator. > Any ideas? > All I can do at the moment is make sure I spark it up every day but I'm > going on holiday soon so was thinking of just disconnecting the battery.. > Any help would be greatly appreciated. Cheers, Gwilym.