Multi"‘battery drain occurs when there are two or more batteries in a charging system. Without a battery isolator, accessories attached to one battery will draw power from all other batteries in the circuit, leaving
them seriously rundown, or even dead. The Quicksilver Battery Isolator is an electric current controlling device which isolates each battery in the circuit. Each battery then discharges and charges accordingly.
Never does the load on one battery drain power from other batteries in the system.

80 amp battery isolator. Ensure battery cables meet ABYC/CFR regulations.

Fits:

• All MerCruiser and Outboard engines