The reason i asked was that our first time out this year, a couple weeks ago to a 4 day dogshow the radio was on most of the time and when i started the engine to leave the battery was dead (glad i always carry a jump box) and has never happened before.Battery had 13 volts before i left and drove 200 miles.Where we had to park was not level and soft soil and had to lower and raise the leveling jacks several times and i thought that may have pulled the battery down more than normal.