Question about 1994 Saab 900
If in the US or Canada, take your car to one of the chain auto parts stores for a free battery test; I would do this first since there are problems that may be draining the battery slowly or the alternator can be defective and discharge the battery while standing.
The alternator can also be checked at the parts store and they will tell you (if not, ask) what series battery you need.
If you have a multimeter (they are under $20 US) or know someone who has one, it makes sense to check for current flow with all electrical items and the engine off, the battery charged. Disconnect the black (ground cable) from the battery and measure current on the separate, normally present, 10 Ampere range by connecting the positive (red) lead of the meter to the removed negative cable and touch the negative (black) meter lead to a clean chassis point. Since there are items that draw small amounts of current even when appearing 'off,' some current may flow but typically, it should be under 0.1 Amperes. Clocks, radios and the computer may draw a little even when apparently doing nothing. Anything above 1.0 amperes is not normal for a standing auto since this will drain a battery in 1-3 days.
Batteries vary greatly in quality so personal friends' recommendations help, and I can recommend Interstate brand but avoid the 'green top' series from them since they are very poor. The 'black top' series are among the best and priced in the mid-range.
Posted on Sep 05, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
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--------------These details and procedure will help.keep updated for more help.Thanks.
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