on orders over $50
use code: freeship
Call Us Toll Free★★★★★

KeyLine Chargers - 12V 140 Amp Dual Battery Isolator & ATV UTV Wiring Kit

KeyLine Chargers - 12 V 140 Amp Battery Isolator & ATV UTV Wiring Kit 

Your search for the best automatic battery isolator is over. Why? Our 12 V 140 Amp Battery Isolator & ATV UTV Wring Kit is the best value on the market, bar none! When you need a reliable isolator to prevent battery drain and always have a charged primary battery to get your motor started then this is the isolator for you! 

While other companies claim to make a "smart" battery isolator, they cannot provide all of this:

  • Zero Voltage Drop. KeyLine automatic battery isolators won't rob precious power from your batteries and electrical systems (unlike the ones with heat sinks on them).
  • Small Convenient Size. Only about 2 inches tall, wide & deep.
  • Super Easy Installation. Comes with mounting plate/template - Simple power wire in/power wire out install.
  • IP65 Weather & Strong Vibration Protection. Suitable for all off road and weather exposed applications.
  • Most Efficient Programming in the Business. Ensures your electrical system functions properly & batteries charge accurately.
  • Voltage Sensitive Relay (VSR)
  • 100% of the Necessary Hardware & Mounting Instructions
  • Dual Battery Voltage Isolator User Guide
  • Installation Guide ATV/UTV Kit
  • 1 Year Warranty

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!

In fact, 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.


Why Buy From Us?

Hello From the Owner

What our Amazon customers are saying about us...

"The Keyline Mini-Pro Automatic Car Battery Charger is elegantly simple in design and beautiful in its packaging. The single page of instructions and the minimal "warning" paragraph were more than adequate for the device. The charger itself is completely protected from electrical abuse and will not harm the car battery under any conditions..."

"Great product. We started using the charger right away and it is working great. It arrived on time, which is a plus during the holidays!
Everything as stated and then some. We had questions that were answered in a timely fashion before purchase. Would recommend this product and seller to everyone I know!"

"This is a very user-friendly unit. It has a cord on both sides of the transformer so that it does not take up 2 outlets. Well designed. I love the consumer-friendly consideration. Permanent battery connection for the generator battery was very simple to connect and the appropriate cords included. I purchased 2 units and am very glad I did. It comes with an outstanding 5 year warranty! That is standing by your product! The price is very reasonable. The cords are reasonably flexible. The face of the unit is also user friendly and easy to read. A+++++"

"I bought the KeyLine charger to charge up my battery packs to my home alarm as well as to the ATT box. Honestly I did not know they were rechargeable as I had already purchased replacements for them. When I was about to turn the old ones into be recycled is when I saw that they were all rechargeable thus I ordered the charger. It charged them right up so I am very happy with my investment."

Your Satisfaction is Our Main Concern

Largest Selection - 100% Money Back Guarantee - On Time Shopping - Best Customer Service