electrical problem
Submitted: Saturday, Sep 15, 2007 at 11:29
ThreadID:
49694
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1831
Replies:
4
FollowUps:
2
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al
hi guys
my problem is if i don't use my 4wd drive 4 a couple of days my main battery goes nearly flat. have dual system it's a new battery and i have had it load checked so battery is ok i make sure every thing is switched off but there is obvious a leak some where i have tried every thing i know to find it any ideas would be appreciated when i leave battery disconnected battery stays charged if you guys can't help it will be down to auto sparky big $$$$$$
thanks in advance
regards
al
Reply By: Mike Harding - Saturday, Sep 15, 2007 at 12:47
Saturday, Sep 15, 2007 at 12:47
Two days!? Something must be pulling close to one amp from it.
Does your second battery hold up OK? What accessories do you have connected to the main battery?
If you can borrow a Hall Effect "clamp on" ammeter you should be able to find out which item is drawing the current.
Give us more info on your vehicle and setup and we'll try to help.
Mike Harding
AnswerID:
262239
Reply By: Member - Brenton H (SA) - Saturday, Sep 15, 2007 at 12:53
Saturday, Sep 15, 2007 at 12:53
Bit hard to tell without being there to actually look at the car first hand but if it's the main battery then you have to check those items that the main battery supplies power to..eg radio, lights, any thing plugged into accessory sockets, is the dual battery sustem cutting off from the 2nd battery etc. If you have a multi meter that you can put into the circuit to see if there is any current draw that would help...if no current is flowing then it's a quirky battery problem.
AnswerID:
262241
Reply By: Sand Man (SA) - Saturday, Sep 15, 2007 at 16:22
Saturday, Sep 15, 2007 at 16:22
Mate,
Something is "on" or shorting, and drawing current from the battery.
It doesn't sound like a problem with the dual battery controller, but something connected to the primary battery. What "accessories" have been added? Winch? spotties?
Try removing the fuse from anything connected directly to the battery terminals.
AnswerID:
262274
Reply By: PeterInSA - Saturday, Sep 15, 2007 at 20:07
Saturday, Sep 15, 2007 at 20:07
al,
Had a similar problem with my main battery. Did a check with a meter and it turned out that I had current going to the alternator. One diode had gone. Replaced the alternator (with an 80Amp unit) and fixed the problem. Hard to replace the diodes on my alternator.
Suggest you check out your alternator.
AnswerID:
262312
Follow Up By: shade10 - Saturday, Sep 15, 2007 at 21:03
Saturday, Sep 15, 2007 at 21:03
I agree, had big dollar probs with one of my cars doing that!!!!!
FollowupID:
523802
Follow Up By: OnYaBike (Cairns, QLD) - Saturday, Sep 15, 2007 at 22:06
Saturday, Sep 15, 2007 at 22:06
Ditto with my son's (admittedly old) Landcruiser.
The alternator was actually discharging the battery. He disconnected the alternator, charged the battery and went to a job in
Mission Beach for a few days, armed with a battery charger. Had the alternator replaced when he came back. Too old to fix.
FollowupID:
523819