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dougsrv4mx
02-07-2013, 02:18 AM
I have a 2010 Coachmen Class C RV with a 2008 Freightliner chassis. The coach (rear) battery goes dead in minutes when the engine is running. It's a new group 27 battery and charges fine when using shore power and holds a charge when the engine is off. I just picked it up from Camping World and they are clueless as to what it could be. :idunno: Any ideas?

Amboman
02-07-2013, 02:31 AM
The coach (rear) battery goes dead in minutes when the engine is running. Any ideas?

Ouch!! something that drains that fast is at risk of thermal meltdown and catching fire, you risk losing your vehicle if it continues, its obviously a dead short and requires knowledgeable fault diagnosis to ascertain but would appear to be in the charging circuitry.