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Hi all, I wonder if anyone can help? We have had two new batteries in our Coachman Amara (2008) and if we don't use it for two to three months the leisure battery disharges completely. This has just happened for the second time even though when we had it serviced in July this year we asked them to check the charger in the van and they said all was well. On all our other caravans the battery remained charged over the winter no problems. Can any one suggest what might be wrong.

Happy Christmas and a Joyous New Year to you all when it comes.

Thanks Denise.

Quote: Originally posted by jeff juke on 17/12/2011

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Have you got an aerial booster ? A lot of people forget to switch it off and this can drain the battery.

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Hi, thanks for your help, here is some more information. Our caravan is stored on the drive. We do not leave anything switched on. We do not leave it plugged in. We have never used a TV but will check if it has a booster. When the last battery drained we checked for a drain source and couldn't find one that's why we asked the charger be checked at service. We do have an alarm but was under the impression that this has own battery source as that is still working even though caravan  battery is as flat as a pancake. We understand that leisure batteries cannot be recharged once flat so I think we will need a new one again. We will disconnect battery in future as we can't afford to keep renewing but we have never had to in the past so are mystified by this.

All ideas warmly recieved.

Denise.

All ideas warmly recieved.

Denise.

ours is stored at home on the drive and we have a shed with a plug that i can plug into 24/7 and using a timer,this timer comes on for 4 hours a day.this keeps the battery fully charged and runs a dehumidifier if required.also keeps the battery full for the mover.done this for years.DO not buy a cheap timer as they are not safe.a caravan charger will only charge to 13.5 volts at any time.if no shed you could have an outside water proof plug fitted.

General rule of thumb:  The less your deep cycle battery is discharged before being properly recharged again, the longer it will last.

I have provided a link which someone provided on this site in another thread regarding discharged batteries.

http://www.energymatters.com.au/renewable-energy/batteries/battery-voltage-discharge.php

worth reading see battery charging

http://www.campingandcaravanningclub.co.uk/helpandadvice/technicalhelp/datasheets/

Looking after your Leisure Battery