A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Time for new battery??

Old 04-05-2005, 12:29 PM
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Default Time for new battery??

My car('97 QM 12v 93K) sat for 2 1/2 days and my battery is dead(less than 8 on v meter when @ "on" position). Is this normal or is it time for a new battery.

Don't know how old the battery(Autozone battery) is(had car for 1 year). But if i crank it every day, its fine; wait 24 to 48 hrs & it's near dead, if not, dead.

Does anyone experience this sort of battery drainage? I guess the battery can't support the alarm for that long? Or is this another problem?

STFA & I seem to be torn between the Die Hard International & Interstate MTP-91? I'm leaning towards the MTP, but I would really appreciate some feedback.

But before i get ahead of myself: Does this rapid battery drainage mean it's time is up?

TIA
Old 04-05-2005, 01:44 PM
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Default I have had the Sears Int'l for 2 years now w/o any problems.

I would replace the battery, sounds like it has one dead cell. Have the alternators output checked too.
Old 04-05-2005, 02:10 PM
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Default I thought the Alternator was not in use when ignition is off..what's the longest u let your car sit

with no starting problem issues?
Old 04-05-2005, 04:18 PM
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Default I have gone 2 weeks without starting my Audis and never had a problem starting.

That's with a good battery and alternator.
You're correct the alternator only charges the battery when the engine is running. Chances are, your present battery is bad, probably one dead cell.
Old 04-05-2005, 05:37 PM
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thx..i'm going to repost for the night crew
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