My fifth wheel trailer sat for 4 years and batteries went dead.Installed new batteries yesterday.Nothing works, so I plugged into house with 15 amp power.Everything works?Do the batteries need to charge longer to get 12 volt lights to work?Thanks in advance for any help with this problem.

Sounds like corrosion at some of the wiring connections

Does your 5'ver have a battery disconnect switch? Is it turned on?

If it works plugged in but not on battery look for a battery disconnect. Also the inline fuse normally near the battery might be blown. Make sure the battery cables are not reversed. On most RV's Black is + and white is -

I had new battery cable installed at Camping World along with the batteries.Could the converter have gone bad?

Just went out to trailer and yes the battery disconnect was pushed in (off) pulled it out still no lights?

Nothing works? | Good Sam Community

Quick_trip
Explorer
Jul 09, 2015
Well, Thanks for all the advice!
They arrived in Albuq. 3 days before the 4th. of July.
They checked the fuses in the battery box and "BINGO" put a new fuse in and all the lights and everything that works 12 volt was correct.
Chandalen
Explorer
Jun 19, 2015
I have a 40a fuse from the batteries to the fuses in the box. Do you happen to also have an inline fuse?

Check the voltage going into the fuse box to narrow down your search.
opnspaces
Navigator II
Jun 19, 2015
Quick trip wrote:
No, I don't have a meter, so my niece and her husband have left towing
the trailer heading to Alburqurque.
They have a family member who works on RV's
Thanks everyone for your quick replays.
I will let him know what to check.

Cerritos to Albuquerque? That's quite a gas bill to trouble a battery issue.
Gary_
Explorer II
Jun 18, 2015
If it was outside there is a possibility of a rodent chewing a wire or two! Good Luck.
old_guy
Explorer
Jun 18, 2015
even if there is no visible corrosion there can be some under the wire insulation. I once had that problem, new wires did the trick.
Quick_trip
Explorer
Jun 18, 2015
No, I don't have a meter, so my niece and her husband have left towing
the trailer heading to Alburqurque.
They have a family member who works on RV's
Thanks everyone for your quick replays.
I will let him know what to check.
westend
Explorer
Jun 18, 2015
There should be a fuse or circuit breaker on the battery's (+) phase cable within a few feet of the battery. Check there first. Do you have a meter?
j-d
Explorer II
Jun 18, 2015
Necessary Cable NOT connected when batteries/cables replaced. For example, we have four cables connected to positive on our battery. Leave one off, something isn't going to work. I didn't combine them into a common terminal, but I did tape them all together to help avoid missing one.
MEXICOWANDERER
Explorer
Jun 18, 2015
I don't work

Not even with new batteries

Don't feel lonely...
wnjj
Explorer II
Jun 18, 2015
Quick trip wrote:
I had new battery cable installed at Camping World along with the batteries.
Could the converter have gone bad?

If 12v things like lights work when on shore power, the converter must be working. What isn't working is the connection from the batteries to the converter.