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Old 28th January 2004
charles windsor charles windsor is offline
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Join Date: Jan 2004                                                
Location: brookings sd
Posts: 1
Default battery problems

i am a new owner of a 1991 900s. i ahvent really had time to dig into it but one thing i know for sure is thast teh battery drains over night. i dont know what causes it to drain but it does. i go to start it in the morning and it is deader than a brick. please help

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Old 28th January 2004
jetman jetman is offline
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Join Date: Sep 2002                                                
Location: Guelph Canada
My Saabs: 1984 T8
Posts: 7,020

Possibly the little light in the back of the hatch is stuck on or something of that nature?
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Old 29th January 2004
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gerryp gerryp is offline
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Join Date: Dec 2003                                                
Location: '88a c900t16s Harlow, UK
Posts: 506

Hi Mr Windsor, welcome to SaabCentral.

A few things to try:

1) Disconnect one of the battery terminals before you go in at night. If the battery is still dead in the morning, you need a new battery.

If the batttery is OK:
2) Check the ignition switch is fully off. If it's not; the light in the main light switch will be on, anything in the accessories circuit will be supplied with current (if switched on), anything plugged into your cigarette lighter will draw power.

3) Check the quiescent current draw of any alarm or radio fitted.

4) Check the earthing points are in good condition (strange things happen with bad earths)

5) Check the battery is being properly charged. With the engine running the voltage across the battery should be 13.8 to 14.1 volts. With the engine off a fully charged battery should be more than 12.6 volts.

Best of luck
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Old 29th January 2004
alan forsyth alan forsyth is offline
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Join Date: Oct 2003                                                
Location: wishaw scotland
Posts: 722

i had this prob 6 months ago when i got my 16t the radio was removed and the live wire was hitting metal and therfore draining the battery i put some insulating tape on it and bingo cheers alan
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