Caravan & Camper Battery Charging Feedback
Submitted: Thursday, Jul 23, 2009 at 10:18
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The Beach Dweller
Hi All. I have a couple of small deep cycle batteries fitted to my camper trailer, which charge both whilst driving, and via an 83w solar panel. I have not used the batteries for a month now, and find that neither the solar nor the vehicle will put charge into them ... does there need to be a small amount of charge already in the batteries for the solar/vehicle to top them up, cheers Carl
Reply By: Member - Brenton W (SA) - Thursday, Jul 23, 2009 at 10:53
Thursday, Jul 23, 2009 at 10:53
Hi Carl
I hope your batteries havnt been left flat for too long, i did with
mine and and the battery was stuffed, deep cycle batteries need to be kept charged up.
I ended up changing my solar panel for a 130 watt one, also a small yamy geb set with a 25 amp ctech charger all works wel now keeps the beers cold !!!
hope that helps.
Brenton
AnswerID:
375809
Follow Up By: Member - Mike DID - Friday, Jul 24, 2009 at 22:10
Friday, Jul 24, 2009 at 22:10
ANY Lead Acid Battery (Wet, Gel, AGM) will be damaged if it spends any time at less than 100% charge.
FollowupID:
643461
Reply By: Member - Josh (VIC) - Thursday, Jul 23, 2009 at 11:36
Thursday, Jul 23, 2009 at 11:36
Deep cycle batteries when flat take a huge amount to charge, usually over a long period. Best charged with a 240 v charge on trickle charge. Could take a couple of days to charge. We had similar problem with ours, it took 2 1/2 days to get them back up on trickle charge. Can damage bats if trying to charge to quickly.
Josh
AnswerID:
375814
Reply By: Mandrake - Thursday, Jul 23, 2009 at 11:53
Thursday, Jul 23, 2009 at 11:53
Is there a controller / regulator between the solar panel and batteries ?
Also as stated above a new type CTEK charger / conditioner may bring the batteries back - but it will take a while if it does manage it ..
Rgds
Steve
AnswerID:
375817
Reply By: Member - Sigmund (VIC) - Thursday, Jul 23, 2009 at 14:45
Thursday, Jul 23, 2009 at 14:45
Yeah, you need a smart charger and one that suits the battery type. Ctek or Orcharge are good.
On the other hand it may just be coincidence and your batts are dead :-{
AnswerID:
375830
Reply By: ABR - SIDEWINDER - Thursday, Jul 23, 2009 at 17:58
Thursday, Jul 23, 2009 at 17:58
Carl your solar regulator would need approx 8V to activate so that may not work for you.
The car should bring the voltage up to a point where the solar regulator can take over but you actually need a good charger to try recover the batteries. (They may not recover) The cars regulator will not allow you to push the 14+ volts into those batteries that they need to re-charge.
I suggest you buy a good charger and if that does not work you will need new batteries. Look for one with PWM or a Desulfate step in the program.
Regards
Derek from ABR
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375849
Reply By: Maîneÿ . . .- Thursday, Jul 23, 2009 at 18:16
Thursday, Jul 23, 2009 at 18:16
Beach Dweller,
First things first.....
Why not take both batteries to a battery dealer and get them tested ?
If they are stuffed you will know, the dealer may put them on his HUGE battery charger, by normal standards, and recharge them for you if they are OK ?
Maîneÿ . . .
AnswerID:
375851
Reply By: The Beach Dweller - Friday, Jul 24, 2009 at 15:22
Friday, Jul 24, 2009 at 15:22
Thanks to everyone who helped you are all great ... managed to get 8v via a trickle charge into the batteries and the solar has taken over and charging nicely. back on the road soon for part of Terra Australis Take Two .. follow my blog:
http://web.me.com/thebeachdweller .
thanks again and look forward to catching up somewhere in this great paddock
The Beach Dweller
AnswerID:
376004