[parishht]

I asked that same question a LONNNGGG time ago.

Anyway, the concensus was to go with the Guest charger from WEST marine.

I was told the Cabela's brand did not hold up.

I did go with the Guest and I am very pleased with the performance.
The only bummer is that you only get teh charger unit,
it is not a kit, you have to buy wire and fittings for the hook up.

Oh yeah, I also went to Lowe's and picked up a 50 foot
outdoor extension cord, cut off the female end and connected it to
the supply side of the charger.
In my application, I have storage area close to the mounting,
so I just wrap up the cord and keep it on board.