Perko 8503DP Medium Duty Battery Selector Switch w/Alternator Field Disconnect w/o Key Lock [8503DP] Lighting | Navigation Lights Cutout Size: 5-9/16"

Cutout Size: 5-9/16"

AGM Internal battery capacity 51 amp-hours Internal battery voltage (nominal) 12 VDC DC power socket (circuit breaker) 12 amps (automatic reset) Charging System AC charger bulk charging current (max) 5 amps Peak charging voltage  (nominal) 14

or PowerDrive bow-mount trolling motor

3 wire version allows manual override or indicator light capability

Perko 8503DP Medium Duty Battery Selector Switch w/Alternator Field Disconnect w/o Key Lock [8503DP] Lighting | Navigation Lights Cutout Size: 5-9/16"Medium Duty Battery Selector Switches Diameter: 5 1 4" Depth: 2 5 8" Polycarbonate Body with Brass Terminals Ignition Protected For use with 6 to 32 Volt Marine Electrical Systems Capacity 250 AMPS Continuous, 360 AMPS 5 Mins. Intermittent Terminal Stud Size: 5 16" When used with Non Unitized Alternators, these models will interrupt the field current (reducing the possibility of damage) if turned "OFF" with the engine runnin Specifications: AFD: Yes