Fixed - Parasitic Battery Drain
#16
#17
Join Date: Feb 2005
Location: Chattahoochee Hills, Ga.
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I think you are right about <75 MA being in tolerance from what I remember.
Just a shot in the dark...... the 250 I had before this one had a flaky switch in the glove box and sometimes the light would stay on with the door closed. Almost never found it and it would just do it sometimes. I guess you will have to keep searching. These things can be tough and I'm thinking it takes something pretty "find-able" to draw down 2 good batteries in that amount of time. That is if you can catch it in the act.
I think I'd leave my meter hooked up and just check it now and then if it's sitting. Must be an intermiddent thing or flakey ground connections somewhere that come and go.
Just a shot in the dark...... the 250 I had before this one had a flaky switch in the glove box and sometimes the light would stay on with the door closed. Almost never found it and it would just do it sometimes. I guess you will have to keep searching. These things can be tough and I'm thinking it takes something pretty "find-able" to draw down 2 good batteries in that amount of time. That is if you can catch it in the act.
I think I'd leave my meter hooked up and just check it now and then if it's sitting. Must be an intermiddent thing or flakey ground connections somewhere that come and go.
#18
Let's assume the alternator is working fine (my first thought is the alternator is not putting out rated amperage...perhaps it reads 14.1 volts but only a few amps - battery goes dead slowly). Your comment got me thinking about weird possibilities. How about one of the relays to a large battery draw accessory powered via a relay is flakey and stays hot after the key is turned off. I don't know if it is possible, but might be . When the relay is open the OP gets a low mA draw...but when it goes flakey the draw is high and kills the battery.
#19
#20
#21
As for the alt, I have to assume it's good... Prior to this alt the system displayed similar behavior. Alt amps...? If the truck sits for 3-4 days I can hear the weakness while starting, not seriously weak, but noticable. If I drive 10 minutes and restart it, it spins like a champ... Seems to charge fine. Volts are steady at 14.1. Looks like I'm going to be carrying my meter in the truck and spot checking whenever I can.
FWIW it seams to be worse when cold, but I'm only talking mid 30's not really cold...
FWIW it seams to be worse when cold, but I'm only talking mid 30's not really cold...
#22
#25
#26
It would indeed for the glove box bulb only 2.66 watt draw...the underhood draws almost an amp though (that is the reason I just leave it slightly pulled out so it only works when I push it in all the way).
#27
Join Date: Feb 2005
Location: Chattahoochee Hills, Ga.
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He said they would go dead after 7-10 days. I agree, glove box or small bulb draw shouldn't kill them over night. Under hood light draws a good bit more amperage, I didn't know how much more till Neal posted.
These things can drive you nuts. It takes time and patience to find and fix them. Don't give up !!
These things can drive you nuts. It takes time and patience to find and fix them. Don't give up !!
#29
#30