Home› Main Category› Clubhouse
car battery issues.
tubabucknut Posts: 3,520 Senior Member
So my wife's van is having issues with the battery. It is loosing about .5 volts an hour on the battery. of course after several hours it is no go to start. I have replaced the battery a few times, and have confirmed the batteries themselves are not the issue. So how do I best go about tracing the draw? Everything is off, the doors are all shut, no visible lights on from the outside. I will go sit in it tonight when it is dark and see if I can see any lights on. The other thing is the starter seems to struggle. Even on a brand new battery with a full charge it catches before it turns over. When you have a fresh battery and a jump it fires like a champ. The batteries say 800 cold cranking amps. Should I buy a bigger battery? Could it be the starter itself?
Thanks for any input.
Thanks for any input.
> google for your make/model/year and see if others have had similar issues. I would be surprised if you were the one and only person with this one and only issue. sometimes you may need to join a board like this to get any info. I consider this low hanging fruit to do searches. Easy peasy. You can also try searching for similar vehicles or vehicles that used the same platforms/chassis.
> If you have any auto parts shops in your area, take your vehicle there and have your alternator checked and iirc would have it checked under load.
> one thing i found out was that if you dont drive the vehicle long enough when you do use it, you may not be "re" charging your battery. on a "new" battery it shouldn't be an issue, but an older battery???
> sometimes a bad ground point could be an issue. it could be rusted where you "think" the connection is good.
others will chime in....
- Don Burt
ilove22s i will try a search. I just started here because I know a bunch of guys here are in the know.
Fisheadgib I am well versed in AC, not so much in DC. But I learn quick. My multimeter has an amp loop. Can I just put this around the positive and measure the draw that way? It is how I check draw when I work on someones house panel.
Alarm system? Cigarette socket in use charging something?
That's probably an inductive loop on your meter that will only work with A/C amps. You may have a DCA or uA setting that will read DC amps if the leads are connected in series between the battery and positive lead. Bear in mind that it's usually fused pretty low like one or two amps so if you have a huge draw, it will blow the fuse in your meter.
Bisley fan is not running but thanks for the thought.
Roadking I think it is something along the lines of a bad switch. It is a 94 Astro. So I gots me some old Tech. There ain't none of Wambli's 5g in this ancient beast. The problem is it is the tricked out version with the TV and the VCR and all that junk. There is a lot to go wrong.
Fishead I will check my meter, but I do not recall the two settings you mentioned. Interestingly I tried the loop since I was last on. It read nothing while the van was off, but registered 6+/- amps while it was running. I wonder if the loop is not sensitive enough to register the draw, and I will have to use the leads as you describe.
Me thinks you have a short. Is this by any chance a Chrysler product?
Son that's somebody with nothing to do with his time but keep me in trouble with mom.
― Douglas Adams
Farmboy. Yes they are boxes on wheels, but that is why they are so useful.
Thanks Teach. I will try that as well.