- Mar 20, 2018
...And AAA came out and replaced the battery. Since then ,on occasion the battery will discharge after a week.(Wife has a employee that forgets to close door all the way after using the truck every saturday) We found the door ajar and the overhead light on. So we disabled the overhead light and with the door ajar the battery still discharged. My question is this. What would discharge the battery if the light does not come on when the door is open.Would a cell phone charger left in the service port drain the battery. (I had one melt and turn red before my eyes in my motorhome, luckily I was there) Suggestions.