Protect your starting battery while powering all your electronics all day. This dual battery kit with Automatic Charging Relay (ACR) isolates your starting battery from your house battery — so high-draw outboards (300HP+) always have full, clean voltage to start, while electronics, livewells, and bilge pumps run off the secondary battery.
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Wire: 6 AWG leads on both ends; 8 AWG accessory connector
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Feature: ACR isolator — batteries draw independently but charge together off the alternator or charger
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Accessory Port: 8 AWG connector; add RCE12VB4 for console electronics
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Rating: 60–240A DC / UL1977
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Compatibility: AGM and lithium battery compatible
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Patent No.: 9,559,473 / 9,866,047
