An automatic charge relay designed for boats with outboards and small inboard engines.If you are adding a second battery to support a larger stereo, a trolling motor or a new fishfinder, an automatic charge relay (ACR) is a great way to manage the additional battery and protect the equipment it powers.The Blue Sea Systems mini ACR is designed to be used with alternators commonly installed on outboard engines and smaller inboard engines equipped with 65 amp or less alternators.The ACR combines the two batteries while charging, and isolates the house battery to protect sensitive electronics while starting the engine. It will share the charging source more efficiently than a battery isolator without creating a voltage drop.Additional wiring or an external regulator is not required and makes installation straightforward. Because the ACR is ignition protected, it can be installed within the engine room.Key FeaturesAllows two batteries to be efficiently charged from a single charging source without external regulators or isolatorsAutomatically isolates house battery during starts to protect electronicsIgnition protected; can be installed in engine rooms of gasoline powered boatsLED indicator light for ACR statusCompact design can be installed in space limited applicationsCompatible with Blue Sea Systems 360 panels (using model14122394)Lifetime warrantySpecificationsNominal voltage:12V, 24VStart Isolation:YesAmperage Operating Current:90mA (combined), 15mA (open)Continuous Rating:65AIntermittent Rating:115Afor 2 min.Cable Size to Meet Rating:1/0AWGTerminal Stud Size:1/4"Closing voltage:6/27.2V (30 sec.)Opening voltage:75/25.5V (30 sec.)Over Voltage Lockout:16V@ 12V,Under Voltage Lockout:5V@12V, 19V@ 24VDimensions:2 7/8" x 2 7/8"x 2 5/8" D