Ok not long ago I asked y'all recommendation on a new battery for the horse trailer. Well we got the Marine type like most suggested. Well went out there today to get some things out the the living qrts part, flip on the light and its dim  Try the loading lights and they won't even come on. It hasn't been in the trailer but a couple months and we've used it since it was installed. It just hasn't been sitting long enough to just drain.

Could there be something in/on the trailer draining our batteries?? Our whole trailer is electric. Water heater, water pump, AC, microwave, TV, radio and lights. Thats all that is in the trailer. Hubby tried to turn on the microwave, water pump, water heater with out being plugged in and nothing would turn on. The only thing that turned on was the radio. Would that be it???

Is there a way to put a toggle switch on the battery?? So that its not drained by what ever is draining it??

Kill switches are available that attach to the battery and are simple to hook up to the B+, red hot wire. They are found at most auto parts stores. They are commonly used by car owners who store their vehicles for longer periods of time.

During the winter and when my trailers are not being used, about once a month I plug in my shore cords for a couple of hours at a time. This keeps the batteries charged up. If they were to completely discharge and cold weather was encountered, the batteries could freeze and be damaged.

There are small battery chargers called "float" chargers that are made for long term "maintenance" charging. We use them on cars that are stored during the winter. I was using them on the trailers, but the cords were a problem outside in the snow. So the once a month drill works pretty well.

Gard