A possible way to look at this is to figure what current would be required
to drain the battery given certain assumptions. Like...
Battery capacity in Ampere-Hours = 100
Time to dead battery = 20 hours
Look for current = 100/20 = 5 amps.
If you would assume that the radio and other standby electronics would not
drain this battery in, say, 100 days then the standby current could be given
by...
Standby Current = 100/(100*24) = approx .041 amps or 41 mill amperes
There are many other factor involved (like just what constitutes a dead
battery and ambient temperature) but this gets you in the ball park.
Frank
B9471116
> -----Original Message-----
> From: owner-tigers@autox.team.net [mailto:owner-tigers@autox.team.net]On
> Behalf Of Steve Laifman
> Sent: Saturday, January 29, 2000 3:05 AM
> To: CoolVT@aol.com
> Cc: tigers@autox.team.net
> Subject: Re: Non Tiger infor needed
>
>
> CoolVT@aol.com wrote:
>
> > Would appreciate some general advice. I suspect that a vehicle
> is shorting
> > somewhere and draining down the battery. If I place an amp
> meter between the
> > battery positive post and the positive cable should I be able
> to detect a
> > draw if something is shorting (assuming the ignition key is off)?
> >
> > The only thing that I know of that should be drawing is the
> memory on the
> > radio - no clock or anything else that should stay on. What
> would the draw
> > from the radio be? I suspect about 1/10th amp or so.
> >
> > Would appreciate any input. Mark L
>
> Mark,
> You better get a 400 amp ammeter. You will be measuring the
> starter current, if
> you start the car. That is avoided in the normal ammeter
> circuit. If you do not
> start the car, it can work, but make sure you don't exceed the
> rating of the
> ammeter with whatever you decide to turn on.
>
> Steve
>
> --
> Steve Laifman < Find out what is most >
> B9472289 < important in your life >
> < and don't let it get away!>
>
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