Your search for the best automatic battery isolator is over! KeyLine Chargers 140amp Battery Isolator is the best value on the market.

When you need a reliable isolator to prevent battery drain and you want to always have a charged primary battery, then this is the isolator for you.

There is a reason KeyLine Chargers 140amp Battery Isolator is called a SMART battery isolator:

Zero Voltage Drop. Won’t rob precious power from your batteries and electrical system, unlike heat sinking competitors.
Small Convenient Size. Measuring 2.6″ x 2.6″ x 2″, the isolater fits just about anywhere!
Fast & Easy Installation. Simple power wire IN, power wire OUT install. Comes with mounting plate/template.
IP65 Weather & Strong Vibration Protection. Suitable for all off-road vehicles and weather exposed applications.
Most Efficient Programming in the Business. Ensures your electrical system functions properly and batteries charge accurately.
Voltage Sensitive Relay (VSR). Specially designed for ATV, UTV, boats, RV’s, campers, 5th wheels, off road vehicles, Rhino, Polaris, Artic, Cat, Etc.
Comes With Necessary Hardware & Mounting Instructions
Full 1 Year Warranty

When it comes to SMART charging… There is clear winner. The KeyLine Chargers Smart Battery Isolator works perfectly in all of your dual battery vehicles. When you’re ready to go, don’t get caught with a dead battery or left in the dust by inferior isolators!

Do yourself a favor and buy one for a friend or a second vehicle that needs it – You’ll thank us (and yourself) for good decision later. relé separador de baterías

Product Features

• 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 SMART 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 anywhere! A perfect fit under the hood to get close to your dual batteries.
• 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 alternator!
• RUGGED DURABILITY: Unlike other chargers on the market today, 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.
• WHAT YOU GET: 140 Amp Smart Battery Isolator; 7AWG x 12″ Red Cable with two connectors; 3AWG x 12″ Black Cable with two connectors; 7AWG x 24″ Red Cable (cut to length, with single connector); (1) 5/16″ Lug Cable End, (1) 3/8″ Lug Cable End; 1-1 ½” Red Shrink Tube. 3-wire install and comes with mounting plate, hardware, heavy gauge ground and power wires (see images for exact contents of kit). Easy-to-follow directions for the novice DIYer. Power wire in, power wire out. What could be easier?
• 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!!