10 Best Dual Batteries of April 2020

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  1. 7.9 Reviews
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  2. Product Highlights
    • Voltage sensitive relay: the keyline automatic 140 amp dual battery isolator is all you need to charge two battery systems. voltage sensitive relay (vsr) cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to start your vehicle. it's like having two separate power sources for each battery while only having one alte...
    • What you get: (1) 140 amp voltage sensitive relay (vsr); (1) 20 ft red battery cable; (1) 2ft black ground battery cable; (2) positive brass marine type battery terminals; (1) negative brass marine type battery terminal; tinned copper lugs & heat shrink; cable ties; easy-to-follow instructions. easy-to-follow directions for the most novice diyer. power wire in, power wi...
    • Zero voltage drop: forget the traditional diode relays and so-called "solid state" devices that can rob you of almost 2 amps of output voltage! the keyline dual battery isolator is the only unit designed with cutting edge programming to deliver optimum performance - with zero sacrifice. this compact battery isolator was built ultra-small (2.6" x 2.6" x 2") to fit almost...
    • Rugged durability: unlike other isolators on the market, the keyline automatic 140 amp dual battery isolator is ip65 certified. this international protection rating means that your keyline isolator is safe for use even for your off-road needs in dusty, wet and unexpected extreme weather environments. great for extreme vibration applications as well.
    • Buy with confidence: every 140 amp dual battery isolator is backed by an industry leading 12-month warranty. if you are not 100% satisfied with your purchase, simply take advantage of the no questions asked, 30-day money back guarantee!!
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  3. Product Highlights
    • Fits a wide variety of vehicles - being the computer age that it is today, a lot of accessories, tools and gadgets that runs on electricity are essential in our everyday living or hobbies. this dual battery isolator kit with printed installation instruction manual gives you the power for your recreation without needing to worry about getting home after.
    • Premium rugged construction - this dual battery isolator kit is all you need to charge a dual battery system. it features a voltage sensitive chip ensuring your primary battery is always ready for your vehicle to run. this dual battery isolator is also built to withstand extreme weather environments, vibration and is water resistant.
    • Dual battery isolator kit - enables your accessories to run from a separate battery while the engine is not running on your vehicle while keeping your main battery charged and your vehicle always ready to go and start when you want it to. this dual battery isolator kit features 12 volt 140 amp voltage sensitive relay isolator and includes all the bits and pieces needed ...
    • Complete kit with printed installation manual - this dual battery isolator kit manufactured by aa ignition is a complete kit which includes the isolator or relay, battery cables, battery terminals, copper lugs, heat shrinks, cable ties and a printed instruction manual.
    • Lifetime warranty - this 12v 140 amp dual battery isolator kit comes complete with a lifetime warranty. if the part ever fails on your truck, suv, rv, atv, utv or boat simply contact us for a replacement. avoid getting stucked after your recreation by purchasing this dual battery isolator kit from aa ignition.
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