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Hard-working off-road and work rigs have the gumption to get done what needs getting done. But, they also draw a lot of amps doing it. Whether you're hauling your rock crawler back from a crevasse or powering the load-balancing air bags in your hard-pulling pickup, the electrical system on your vehicle is under a lot of stress. Double up on your DC juice with the T-Max Dual Battery System.

No matter how much strain you put on your system, a backup power cell ensures you have the current to conquer any task. With the T-Max Dual Battery System, you can safely integrate an extra battery into your auto. Not only does it regulate the voltage across your system, but it also comes with a display that shows the health of your batteries in real-time.

With built-in low-voltage regulator, your T-Max Dual Battery System automatically checks and corrects the power flowing into the weaker battery. Plus, you can always link or unlink the batteries so they can run isolated. And, it's backed by a 3-year warranty.

T-Max Dual Battery System Customer Reviews

Average Rating

2 Customer Reviews

T-Max Dual Battery System

Reviewed by Terrill F (Bixby, OK) Reviewed for a 2004 Ford Expedition — Mar 25, 2014 4:21 PM

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2 of 2 people found the following review helpful.

System was easy to install and only took a couple of hours. Instructions were almost non existent, The diagram included was too small to be useful. If I didn't know about battery systems already I don't know if I would be able to do it myself with the lack of instructions. The system itself itself works wonderful would recommend this system if you already know what you are doing or have someone install it professionally.

Great product performing perfectly

Reviewed by Greg W (Houston, AL) — Feb 25, 2013 10:45 PM

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13 of 15 people found the following review helpful.

My only complaint would be the lack of thorough instructions. The product is easy to install, performs flawlessly, and in the long run will make my batteries last longer. A quick call to the tech staff at T Max and my questions were answered. Most difficult part is figuring where to mount the solenoid.

T-Max Dual Battery System

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  • $124.99
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  • Ships Between 3/30 - 4/01

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