Sierra’s 18-6851 Battery Isolator insures battery isolation without needing to check a switch, allowing up to three batteries to be charged at once. The Isolator offers a maximum output of 120 Amps and features a negative ground. Will not work with Delco CS-style alternators.
Insures battery isolation without needing to check a switch
Allows three batteries to be charged at once
Four 3/8″-16 terminals
Maximum Output: 120 Amp
