Guest 2530 Battery Isolator 120 Amps 2 Batteries 1 Alternator

Optimized heat sink design for maximum performance
Minimized voltage drop across isolation barrier using Schottky type diodes
Each output individually capable of carrying the full alternator load
Fixed cable posts for secure connections
Waterproof components for harsh environment performance - year after year

Volts: 12V to 48V
Amps: 120

Note: If used on 24 Volt system boat must be equipped with 24DC alternator.