05-19-2004, 08:09 PM
Car batteries and marine batteries are designed different, since a car's battery is designed for releasing all its power in one big blast each time you start your car. But marine batteries are designed for a long, slow discharge.
That said, there are two types of marine batteries, deep cycle and dual-purpose. A deep cycle is designed for powering an electric trolling motor or accessores. A dual-purpose battery is designed to start your boat's motors AND to run electronics like your sonars, downriggers, VHF radio, lights, etc. Since most of us tend to use many electronics, you want the biggest battery you can fit in your battery storage area.
You can buy good marine batteries at Costco, Wal-Mart, etc.
That said, there are two types of marine batteries, deep cycle and dual-purpose. A deep cycle is designed for powering an electric trolling motor or accessores. A dual-purpose battery is designed to start your boat's motors AND to run electronics like your sonars, downriggers, VHF radio, lights, etc. Since most of us tend to use many electronics, you want the biggest battery you can fit in your battery storage area.
You can buy good marine batteries at Costco, Wal-Mart, etc.