ProMariner Battery Isolator - 130 AMP - 2 Alternator - 2 Battery [12132] Marine Hardware | Accessories The return current is automatically

The return current is automatically blocked even when the secondary battery has a higher voltage

for example a computer

ProPress 2-1/2" - 90° Copper Elbow - Street/Press Connection - Smart Connect Technology

in all conditions

KiwiGrip is a durable

ProMariner Battery Isolator - 130 AMP - 2 Alternator - 2 Battery [12132] Marine Hardware | Accessories The return current is automaticallyBattery Isolator 2 Alternator 2 Battery 130 AMP ProMariner Battery Isolators with gold plated terminals and improved efficiency, provide enhanced charging. Rated for use with DC devices ranging from 10 amps to 130 amps. Owner's Manual (pdf)