Batteries Don't Fit Through Compartment Door; Cannot Replace

BFL13 wrote:
Next chance, replace the hard to get at batteries with deep cycle AGMs. You can install them on their sides, and they seldom need to be hauled out.

I agree. I also suggest that if there are two batteries involved, to see if two 6 volts will fit. They will last longer than a pair of 12Vs. Sam's Club sells Duracell brand 6V AGMs which are affordable and convenient to get. My Sam's Club 6Vs are now 3 years old and are still doing great.