Why Does My Travel Trailer Battery Keep Dying. That is also why I wired one of them into my towing wire harness its now powered when plugged into the MH ignition on. Its a common question although there can be multiple answers.

It was also claimed that Id lose all of my radio presets - I do not. Make sure the threads arent stripped and the nut isnt on too tight. If the accessory circuit on your 7-way is live even when the ignition is shut off it is possible that the battery on your truck could be discharged.
An RV battery that keeps dying can also be due to a lower amperage rating than the motorhomes requirements.
Do not touch it to the black terminal as you do this. So my battery keeps dying. Typically the best way to charge your travel trailer battery from home is to use your shore power cord plugged into a 110-volt outlet. Why does my under-the-hood engine battery keep going dead when I am hooked up to an electric post at campgrounds.
