Product details:

Simplifies switching. Isolates engine and house circuits. Combines batteries for emergency starting. Tin-plated copper studs for maximum conductivity and corrosion resistance. Automatically combines batteries during charging. Isolates batteries during engine cranking and when not charging Includes M-series mini dual circuit plus battery switch. It's always receiving safe and optimal charging voltages. Start isolation ensures that sensitive electronics are not subjected to the voltage sags from engine cranking. Waterproof and includes battery temperature compensation, start isolation and comes with an external indicator remote. Battery temperature compensation allows you to charge a battery based on its temperature.Simplifies switching
Isolates engine and house circuits
Combines batteries for emergency starting
Tin-plated copper studs for maximum conductivity and corrosion resistance
Automatically combines batteries during charging
Isolates batteries during engine cranking and when not charging
Shares the charge between two batteries more efficiently than a battery isolator
Allows efficient dual battery charging without needing regulator adjustment or rewiring