soft start

You say you are using a lot of power from your battery(s) and have the inverter option. Do you also have the 100 watt solar panel affixed to your roof to try to keep your batteries topped up?

It sounds like you currently have been depending on a single 12 volt deep cycle battery for not only 12 volt loads but also providing you with 110 volt power? You need to verify what your loads are in your trailer...write them down as propane, 12 volt load and 110 volt. This is just to help you (and us) figure out where your power is going and how your systems work together. Am example of a energy hog is if you have a coffee maker that plugs into your 110 volt receptacle. If it is rated at 1000 watts, in 30 minutes it has used 500 watts of energy which on its own will take, say, 5 hours of good sunlight to replace, maybe more. (Just rough figures for example purposes! There are engineers who can give you precise numbers but I am not that guy. :-)

Now, if you have NO solar panels and you are boondocking and using your 110 volt power you only have so much energy available in your battery. A solar system has to be sized properly to be able to consistently provide you the power you need.

Inverters take 12 volt battery power and provide 110 volt power but in doing this, due to inefficiencies inherent to the conversion, they lose about 10 to 15 percent. This will also help empty your battery quickly and you don't want to go any lower than 50% charge to prevent damage/shortened life of the battery. A 100,amp hour battery only had a max of 50 amp hours of energy that is useable.

End of story, you need to know where you are using your electricity. You should be running everything you can on propane (water heater, fridge/freezer) and nothing on 110 volt if you have no solar panels...I would suggest turn off your inverter as well to save wasting energy when it isn't needed.

You could let the forum know your power usage (as well as if you have solar panels their size/wattage) for more specific thoughts/recommendations. You will quickly figure out what is going on!

Have a great day,

Andy

  

Not sure I follow your question but if you put two batteries in parallel then you will be running the 12v system in the trailer from both batteries. That is fine and is what you want. As for length you will need to try it and see. I think it will probably be fine.

You'll likely be fine with your 2500 watt generator, install the Easystart and try it and see. Be sure to turn off your other ac loads (like your water heater ac element) and put the fridge on propane. Pick a hot day and let the a/c cycle a few times to be sure the generator holds.

It doesn't sound like the inverter is running anything so that's good.