x2 12 volt batteries in Canter

Submitted: Saturday, Apr 03, 2010 at 16:49
ThreadID: 77427 Views:2486 Replies:6 FollowUps:3
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Does anyone know how to stop battery in Canter going flat? Apparently,it is always whichever battery is in a particular position. If my husband swaps the batteries over it is still the battery from the same position. He has followed up a number of suggestions but to no avail. Battery in position A will hold its charge, Battery in position B goes flat.
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Reply By: Member - Allan B (QLD) - Saturday, Apr 03, 2010 at 16:58

Saturday, Apr 03, 2010 at 16:58
How are they being charged?

Cheers
Allan

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AnswerID: 411540

Reply By: Notso - Saturday, Apr 03, 2010 at 17:23

Saturday, Apr 03, 2010 at 17:23
Is it an after market additional battery, is one of the batteries an auxiliary that runs things like a fridge, etc.

Is it the main battery that discharges or the auxiliary?
AnswerID: 411541

Reply By: Ozhumvee - Saturday, Apr 03, 2010 at 18:44

Saturday, Apr 03, 2010 at 18:44
It sounds like you are using 12v from one battery of the vehicles 24v system. By doing this you will flatten/wreck the battery involved as it will never be charged correctly.
To allow the use of 12v accessories on a 24v vehicle there are a few ways to do it correctly.
For very small loads a 24v to 12v transformer while inefficient can be an easy solution.
A better way is to use a Charge Equaliser which floats the batteries at the same potential allowing 12v to be drawn from either one or both batteries.
The current thinking is to use a switch mode power supply to provide 12v from the vehicles 24v system.
companies like Redarc or GSL make both charge equalisers and switch mode supplies.
Peter
1996 Oka Motorhome

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AnswerID: 411547

Reply By: Maîneÿ . . .- Saturday, Apr 03, 2010 at 20:38

Saturday, Apr 03, 2010 at 20:38
If as you say it's always position "B" and never position "A" even when the batteries are swapped over, then I believe the battery in position "B" must have some accessories attached to it that is not attached to the battery in position "A" ??

Maîneÿ . . .
AnswerID: 411552

Reply By: Member - Morry H (WA) - Saturday, Apr 03, 2010 at 20:54

Saturday, Apr 03, 2010 at 20:54
whot state are you in morry
Titan our wonderful traveling companion

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AnswerID: 411553

Reply By: Faulic_McVitte - Sunday, Apr 04, 2010 at 09:07

Sunday, Apr 04, 2010 at 09:07
if you dont mind the hassle of joininghttp://au.groups.yahoo.com/group/rvtravelau/ you will get the correct info to fix your hassles. had the same setup as you and now all fixed. the electrical and solar info at rvtravel is priceless
AnswerID: 411579

Follow Up By: Maîneÿ . . .- Sunday, Apr 04, 2010 at 09:37

Sunday, Apr 04, 2010 at 09:37
Faulic_McVitte,
tis a priceless link in that it does not load :-(

Maîneÿ . . .
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FollowupID: 681619

Follow Up By: paulnsw - Sunday, Apr 04, 2010 at 12:36

Sunday, Apr 04, 2010 at 12:36
rvtravel that works
favourite forum and no wackers
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FollowupID: 681646

Follow Up By: Maîneÿ . . .- Sunday, Apr 04, 2010 at 13:38

Sunday, Apr 04, 2010 at 13:38
Paul,
Yes, with just 86 members in the caravan & campervan category who join it for free, with activity within the last 7 days of just 194 New Messages & 4 New Photos, it now allows me to understand why being a *member* here at ExplorOz, where we willingly pay our money and share our 'experiences' and 'information' when asked, even with those who refuse to join with us, but are still permitted to ask questions and seek answers anyway.

It's just so priceless and can I suggest such an enriching experience being here

After all, you’re probably here just for that enriching experience, which I believe is not available anywhere else

Maîneÿ . . .
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FollowupID: 681650

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