KeyLine Chargers Dual Battery Isolator Kit for 12V Setup

The KeyLine Chargers Dual Battery Isolator Kit is designed for superior performance, ensuring efficient power distribution between two batteries without voltage drops. Unlike traditional battery isolator diodes, this advanced kit features an automatic disconnect switch that eliminates power loss while maintaining a seamless connection between your primary and auxiliary power sources. Compact at 2.6 in x 2.6 in x 2 in, it is perfect for under-hood installations or as part of a battery relocation kit.

Equipped with a Smart Voltage Sensitive Relay (VSR), this system automatically activates at 13.3V and disengages at 12.8V, ensuring your starting battery remains fully charged. Whether you're installing a marine dual battery kit for your boat, a dual battery kit for truck applications, or need a battery isolator 12V kit for off-grid power, this setup prevents battery drain and guarantees reliable performance.

Built for extreme conditions, the dual battery isolator kit is engineered for off-road adventures, marine use, and daily driving. It is IP65-rated for water, dust, and vibration resistance, ensuring durability in tough environments. Its solid-state design makes it an excellent choice for automotive, RV, UTV, and marine battery isolator needs. Whether battling tough trails or navigating open waters, count on this dual battery wiring kit to provide uninterrupted power.

This complete dual battery wiring kit is designed for easy DIY installation, requiring no complicated setup. The battery isolator kit includes (1) 140 Amp voltage sensitive relay, (1) 20-ft red power cable, (1) 2-ft black ground cable, (2) positive marine-type brass battery terminals, (1) negative brass terminal, tinned copper lugs, heat shrink tubing, cable ties, and step-by-step instructions. Perfect for DIYers of all skill levels-just connect the power wire in, power wire out, and you're ready to go!

Every dual battery kit by KeyLine Chargers is backed by a 12-month industry-leading warranty. If you're not 100% satisfied with your purchase, take advantage of our 30-day money-back guarantee-no questions asked! Drive with confidence knowing you have a premium battery isolator 12V kit keeping your power system running at full capacity.