Date: Sat, 21 Dec 2002 12:50:51 +0000 From: Grunff <grunffnopsam.com> Subject: Re: draining battery
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. You need to find out if there is a drain, and what it is. Attach an ammeter in series with the battery (engine off), with say a 10A range. See what the current draw is. If it's more than 10mA, then start pulling fuses until you eliminate the circuit. This should narrow it down to a point where it's easy to identify the drain. -- Grunff
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