I had an 01 Marathon and it had a dedicated battery for the generator,you need to verify if that is the case in your coach.
Senior Member
I had an 01 Marathon and it had a dedicated battery for the generator,you need to verify if that is the case in your coach.
Member
Thank you for your suggestions. We are on shore power for the night and will troubleshoot these ideas in the morning.
Senior Member
FWIW my 95 Marathon has 2 batteries for the gen set enclosed in a box the gen set compartment. I recently replaced old NAPA with NEW NAPA. I also have A battery charger or a trickle charger on all batteries.
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