battery charging

Thanks for all the quick reply's. I'm starting to realize this dealer did a poor job at explaining everything to me and making sure everything was set up correctly. It dawned on me this morning that yesterday he had the shore power attached during the walk through and we never actually tested the battery, so now I'm assuming the batt was dead already when I pulled away. I'm charging it now so I will test it in a few hours. My truck is a 07' ram 1500, I did some reading and I think maybe it can only maintain the battery not charge it. Is that correct?

Welcome to the forum. It is always best to give lots of information.

What type of RV?
What brand and model RV?

What TV (tow vehicle)?

Now don't it seem like your dealer would have seen to it that the new RV was properly connected to your TV, including the lites and charge circuit, when you left ???? And if for some reason the charge circuit needed fixing, (obviously not working) they would at least informed you of that ?? I'd put it back on the dealer, every bit of it !!
And in the meantime, buy you a hand held voltmeter, or at least a 12v test lite. You will need it,....sometime, if not now !

If you have an inverter on the rig and it was left on it could have run down the battery. If no inverter and battery was fully discharged I would guess it might not charge in 5 hours but other than that I would think it would be fully charged if it was fully charged when you left the dealer.

Fridge left on 110 means is runs on AC power when plugged in to shore power.
It probably swapped to 'gas' when unplugged from AC power.
Regardless.......both use 12 DC power for the control circuits.

Your truck can charge the trailer battery provided you have a 7 pin connector with a charge line AND your truck is set up to charge trailer.
Usually that requires a fuse/relay in trucks fuse box be inserted and some times a wire needs to be connected to that fuse position (Look in your trucks owners manual fuse section.......what is what and which one it is)
Also trucks charge system can really only slightly charge (basically maintain) trailer battery due to size of trucks alternator and the size/length of charge line.

Question.......
How do you know trailer battery was charged when you left dealer????
Because you actually tested voltage on battery
OR
because salesman showed you the 'battery monitor' and it was indicating full charge?? Those panel monitors will show full charge anytime you are plugged into AC power source

The only way to know is test battery voltage (no load/no converter charging) OR to have a good digital voltage monitor installed.

Get the truck 'tow' fuse checked
Get trailer battery recharged....either with a portable charger or via trailer converter if you can plug trailer into an AC power source.

Hi skyhawk208,

Welcome to the forums.

It depends partly on the type of truck you own. Make and model would help.