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How do I check for a draw, i.e. battery keeps dying



One very easy way is to put a light in line at the positive terminal. If 
it lights, you have a draw. You then pull one fuse at a time until the 
light goes out. This narrows down to one circuit where the draw is.
John

Scirocco Pilot wrote:

>How do I check for a draw on my battery without an ampmeter?
>I have a quality multimeter and good eletronic knowhow. I seem to remember something about putting a highly resistive (low wattage) resistor across the battery and measuring voltages or something...
> 
>Battery is brand new, sprial cell type, it's cold here (-20c) but not that cold, car has been sitting for only a couple of days.  I suspect the draw is comming from an accessory I installed this summer, but can't be sure.  Accessories are Alpine alarm and power amplifier.  car is 1993 bmw 320i. I'm thinking of putting an"under hood" trickle charger, is this a bad idea?
> 
>thanks,
> 
>Jason Adams
>Fahrvergnugen Forever :)
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