I am in need of a new battery and was considering my options. I will be completely rewiring the boat so I could go 2 ways here.
First option is a single starting battery that will also be used to power the bow and stern lights, a cd player, a GPS and a depth gauge.
Second option would be dual batteries (one starting battery for the motor, and a deep cycle for the stereo, GPS and depth gauge).
The motor is a 77 Mercury 115hp outboard. I was wondering if the charging system on this motor was sufficient to charge 2 batteries at once, or would I be better off charging just the starting battery from the motor and charge the accesory battery at home?
How many hours of operation can I expect from a new deep cycle battery on a single charge used to power the accesories mentioned. I know this will vary depending on size of battery and other conditions, but I was wondering in general terms using a typical deep cycle battery in good condition and fully charged.
First option is a single starting battery that will also be used to power the bow and stern lights, a cd player, a GPS and a depth gauge.
Second option would be dual batteries (one starting battery for the motor, and a deep cycle for the stereo, GPS and depth gauge).
The motor is a 77 Mercury 115hp outboard. I was wondering if the charging system on this motor was sufficient to charge 2 batteries at once, or would I be better off charging just the starting battery from the motor and charge the accesory battery at home?
How many hours of operation can I expect from a new deep cycle battery on a single charge used to power the accesories mentioned. I know this will vary depending on size of battery and other conditions, but I was wondering in general terms using a typical deep cycle battery in good condition and fully charged.