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Full Time RVing => General Discussion => Topic started by: bajagirl1 on December 27, 2011, 04:26:55 AM

Title: Chassis batteries
Post by: bajagirl1 on December 27, 2011, 04:26:55 AM
Bought our motorhome last February, and while storing it for six months always shutting off both chassis and house batteries in between the 4 weeks I would run the engine to keep it lubricated. Never had a problem starting the engine in-between the months. Now, after a month of our first full timing and while always plugged into 50 amp service I try to start the engine because we are moving in a couple days and it lugged, lugged and would not start. I am now running generator in hopes that it will charge the chassis battery. Should I have shut off the chassis batteries while parked the last month even though I had 50 amp service or does that not keep chassis batteries charged and on house one? Or on the other hand does this indicate a chassis battery in need of replacing?.
350 cummins
Title: Re: Chassis batteries
Post by: bajagirl1 on December 27, 2011, 05:09:50 AM
ran gen for over an hour with no help in starting. The start switch in engine compartment is dead too. I have no way of testing battery
or in reading how old battery is. I will take it out tomorrow and down to Havasu to see whats going on.
Title: Re: Chassis batteries
Post by: Gary Ellis on May 08, 2012, 08:13:36 AM
 :oSounds to me like you Batteries may be stuffed. They don't like being over charged. Get your self a quality volt meter and yes, isolate them from both drawing amps out, and being charged if already fully charged. You can by 2 way intelligent isolator switches that ensures the start battery never goes below 12.7volts as well as protecting from overcharging. That'd certainly be a good idea. ;)