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Subject Topic: Charging leisure battery with 12v adapter
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PersonCambo8140
09/5/2014 at 11:05pm
 Location: Merseyside
 Outfit: 1996 Sterling Sprite-Volvo S40 2.0d 06 View Cambo8140's Profile View Profile   Reply to Cambo8140 Reply   Quote Cambo8140 Quote  
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Hi
Weve just purchased a 1996 sterling sprite 2 berth. Weve discovered that the leisure battery is dead but as weve took it out the compartment have found another set of positive and negative terminals. Tracing these back i have found that they are connected to a 12v transformer plug which is randomly under the inside bench. The plug is not in a socket or anything. Has this been used to charge the battery? Under the bench there is a box which the main lead goes to which has battery charger written on which is switched on which i think should be charging the battery when connected to mains hook up but this doesnt appear to be working as the battery isnt charged but all the electrics work when hooked up.
Sorry if this sounds like a stupid question but we are new to this!
Regards


Persontango55
09/5/2014 at 11:13pm
 Location: Lichfield
 Outfit: Coachman Amara 450 View tango55's Profile View Profile   Reply to tango55 Reply   Quote tango55 Quote  
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It's possible that the leisure battery being a shallow cycle battery is so far discharged that it won't re-charge again either by a charger at home or the onboard charger in the caravan. You need a multi meter and check the condition of the battery voltage but realistically you need a 'smart' charger to charge a leisure battery as a standard car battery charger is likely to over charge it causing gassing which in turn boils the acid which can buckle the internal lead plates. If you read the information in the link it gives you an insight about leisure battery maintenance.

Leisure Battery Maintenance


PersonGrampian91
10/5/2014 at 12:51am
 Location: Midlands
 Outfit: Mondeo Avondale Gram View Grampian91's Profile View Profile   Reply to Grampian91 Reply   Quote Grampian91 Quote  
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As above once a battery becomes severely discharged a standard charger may never put any charge into it at all.

There are ways to charge it. But i wont put the details here. Its risky.



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