Nothing works?

[Quick_trip]

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.

[Quick_trip]

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]

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]

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_]

If it was outside there is a possibility of a rodent chewing a wire or two! Good Luck.

[old_guy]

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]

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]

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]

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]

I don't work

Not even with new batteries

Don't feel lonely...

[wnjj]

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.

[BTPO1]

Dakota98 wrote:

You can always hook-up to shore power & check for voltage reading at the batteries to determine if any charging is taking place.

X2, it would give you a starting point for troubleshooting the problem.

[Dakota98]

Maybe check for "terminal corrosion" at the converter as a next step.

How did the terminals at the battery disconnect look?

You can always hook-up to shore power & check for voltage reading at the batteries to determine if any charging is taking place.

[MrWizard]

Moved from technology corner

[Quick_trip]

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