My used car SUV has 150k miles but its paid off. We bought it about two years ago.

Lately I've been having dead batteries and have had the alternator checked and a new battery put in. It will be fine for 6 months and then just go dead. I am almost positive there is something electrical that isn't turning off with the vehicle and then running the battery dead.

Also when it rains really hard and the car is parked the floor boards get wet. We have no idea where from because there is no visible leak. I think water maybe in the engine area?

Anyways should we look at selling sooner than later?