Battery losing charge over night help!!!!

When my Patrol did the same thing it was a problem with the winch drawing current all the time. simple something is drawing current or your battery is cactus.

Cheers Stefan

check the wires in your trailer plug if you have one

You don't by chance have a Tekonsha Voyager brake control units?
If so, do a search to find about their problems.

Bob

Your vehicle came from teh factory with twin starting batteries. Is this still the case, or have you isolated them?

you should take it to a mechanic or roadside service guy
and get him to load test the battery ,it may have a collapsed cell .
if it more than 2 or 3 yrs old .
mechpete

If your aux battery is dead and the isolator is not isolating it will draw charge from the other battery.

It's a bit like two tanks of water with a pipe joining them. Your isolator is like a valve in the pipe, if you leave it open, even just a little the level in the tanks will equallise. Now if your second battery is totally dead then its like having a hole in the second tank. All the water ends up on the ground.

That's how it was explained to me when the old GQ had a similar problem.

It's a bit scary but 2 new batteries and a new isolator solved the problem.

To check it, physically disconnect the second battery and see how it goes.

Duncs

John,
Phil G has asked a very relevant first question regarding your problem. Do you still have the two factory installed batteries in circuit or have you split them?

Next point,
If they are both still in circuit and both flat in the morning it'd be a fairly safe bet one of them has a shorted cell and is dragging the other one down too.

This one applies to the joined factory install as well as if you've split them.
You could have something partially shorted that is drawing a massive amount of current (least likely scenario) Do you get a big heap of arcing and sparking when you lift the terminals off the battery posts?

Do you have access to or have a friend with a multimeter? You could set it on the 10 amp DC scale and with the ignition in the off position connect it into the battery circuit in series. This will involve lifting the terminal off the battery post and joining the two of them with the multimeter.
This will soon tell you if there is something in the car drawing current or if the battery is the problem.

Really, with the age of your vehicle the most likely scenario is a dead battery.

Run some of the tests people suggest in here and let us know the results.

Geoff

John,

You say the second battery is u/s.
Disconnect it as it is serving no good purpose whatsoever.

Then assuming the starting battery is still servicable, once it has been charged, see if it maintains its charge overnight.

If the dual battery controller is not a "smart" one, the batteries maybe connected in parallel all the time and the faulty battery will definitely drain the other and eventually damage it.

Bill

hi i agree with most thats been said
its a matter of crossing things off the list
1 disconect 2nd battery
still same prob.
2 charge evertyhing up.and disconect start up battery overnight, reconect in the morning
if it starts the prob is not in the bateries
disconect different things overnight and eventually you will pinpiont the prob.
good luck

Thanks for everyone yeah went straight to the second battery removed it and put the main battery connected it first thing yesterday morning when I came home I still had charge in the main battery so the second blat flattery was the problem the cruiser all a goer a again cheers have to wait for the second battery going a deep cycle battery this time. Got to get my car sorted by this time next year off across the top from Tom Price to Broome , Broome to Katherine gorges through cough cough Mount Isa to see the relations then to Cania gorges see Beautiful bessy then to Narang to see the sister inlaw may pop down to Byron Bay as well. Looking forward to the trip been a while since I have been east of the border not since I left 10 years ago.
Well got to get back to work but thanks for the help guys

Cheers

Johnathon White