Battery power to camper

[lefoster]

I have a 2013 jayco 198RD
Worked last night, but today, no power from batteries to camper. (Power jack works)
Cut off switch is on.
I changed the main 30amp fuse between batteries and camper. Still no power to camper.
Plugged into shore power and all works and batteries read fully charged. Is there another fuse to check somewhere?

[Marcm157]

Just because the battery shows full charge on the display doesn't mean its a good battery. Check voltage at the battery while NOT connected to shore power. Even if you show good voltage at that point its not a guarantee that the battery is good. It needs to be load tested. Sounds like its a bad battery.

[lefoster]

True, but it has been working just fine. I have two batteries. I wondered if the disconnect switch might not be making good contact.
The electric jack works and sounds strong. I do not have a volt meter
Ugh

[mrSethTaylor]

I was having that kind of issue once, was the negative battery connection....

[lefoster]

Reporting back....the end was corroded almost off on the cable going from batteries to the 30amp circuit breaker. Replaced the end and we are up and running!