RE: [DML] Battery not charging

[Chris Almy <chris.almy@xxxxxxxxxxx>]

Whenever you are troubleshooting electrical problems with the DeLorean, you 
must have a multi meter. I couldn't imagine trying to fix the electrical 
problems without one. The first thing you should do is disconnect the 
negative battery cable. With one end of the meter's leads connected to the 
cable, check the resistance using the other meter lead on various ground 
points. If you have more then a few ohms resistance on all the grounding 
points, then you have a bad primary ground.

If your ground is good and the charging system is working (electrical 
system is at approximately 14 volts while running), then you might have 
something draining the battery. A properly working system won't have this 
problem, so you need to do more troubleshooting. Try setting up the multi 
meter to measure the current across the battery. With the doors closed so 
the lights are off, you shouldn't be reading more then 40mA for a stock 
car. If you are, start pulling fuses until you find the circuit that's 
taking the majority of the load.

Good luck with the troubleshooting. It took me awhile, but now I can leave 
my car parked for a few weeks at a time and it will start right up.

Chris
VIN 4099

At 08:49 PM 10/3/2004 -0400, you wrote:
>I have somehting like this happening also and was meaning to post about
>it, but I am not sure where to start.
>
>Brand new battery, but when I step on the brakes (when car is not
>running) everything dims!  If my car sits for more then 1-2 days with
>the batteryhooked up, it does not start.  Battery is dead.  I can jump
>it and it kicks right up.
>
>After several hours, it also has issues starting.  It seems to have
>juice, but the starter turns for a second, and then clicks.
>
>I guess I should start with checking the ground?  (I removed the battery
>switch, but that did nothing).
>What if the ground is not the prob?  What could be draining my battery
>so fast?
>
>BTW:  It does start after being jumped and charging for a few min.






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