Alkaline batteries don't do well in outdoor conditions, such as on the outside of an RV
Extremes of heat or cold will cause them to burst and leak, as you experienced.
I don't know if a lithium battery might fare any better... they're supposed to be more tolerant of heat and cold.
IanP, the man from Scotland
Julie, the Lady From Little Rock
Jay Feather 19XUD, pushing a Jeep Grand Cherokee