Feature 1Automatically combine two batteries when charging, and isolate when not charging. 2Waterproof and dustproof designed, not easy to be damaged, long durability. 3Advanced manufacturing, making it has powful performance and high reliability. 4Simple installation, no need complicated tools, convenient for using. 5Wide application, suitable for boats, yachts, SUVs, RVs, etc.Condition: 100% Brand NewItem Type: Battery IsolatorMaterial: ABS + RubberColor: As picture shownRated Current: 140AContact Switching Voltage: 12VBlack Line: Approx. 65cm/25.6inRed Line: Approx. 600cm/236.2inApplication: Suitable for Ships, Yachts, SUVs, RVs, .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Relay2 x Battery Cable6 x Strap1 Pack of Accessory3 x Battery Clip