Posts: 2754
Location: Mauston, Wisconsin | Bruce - AGM batteries are good for folks whom don't want to have to mess around checking & replenishing the electrolyte in a wet-cell battery. Each type, starting, deepcycle, or dual purpose has a finite fit in your boat depending on how you are going to use it.
Starting only- these are designed for short high current discharges. If you want to just start your boat and fish in cold weather they have the highest cold cranking amps rating.
Dual purpose - These are a compromise between starting and deep cycle. If you're running a lot of electronics on your starting battery these may be good choice.
Deep cycle - These are designed for deep discharge at lower curret rates. You need these for your trolling motor.
Much depends on your boat-size of motor, and how you want to use the battery. If in doubt, I'd recommend dual purpose. Get the biggest you can safely fit into the battery space.
Al
Edited by ESOX Maniac 3/24/2008 7:45 PM
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