waking to dead new batteries

Sure might be handy if we had some idea what these batteries are in?

What is voltage at night and what is voltage in morning? Measure right at the battery.

If a trailer, is the breakaway pin pulled out?

We can post WAGs all day but unlikely to be much help without more info to work with.

Golf Guy wrote:
I am waking upon to dead batteries on the new house batteries. The last two nights I have been turning everything off when going to bed and waking to not enough charge in the batteries to start the generator. Where to begin looking for problem. Any advice would be helpfull

New batteries? Odds are they weren't connected correctly.

First off, take your battery to Auto zone and have it load tested. I've seen brand new batteries that were bad. Proceed to the next step if the battery checks out good:

If you have an amp gauge, disconnect the positive post of your battery and put the leads on the positive post and the cable. Shut off all of your circuit breakers, and turn off everything in the RV and turn the breakers back on one at a time. If you have a short, the amperage will go up when you turn the breaker on for that circuit. This will help you isolate where the problem is.

What is the voltage just before going to bed?
How are you charging the batteries each day? What converter? How many hours?

Basically you need to get the battery voltage over 14.2 for at least two hours to call them charged.

Any chance the fridge heater is on?

Were they absolutely fully charged?