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JK Dual Battery Kit
Genesis Offroad Jeep JK Dual Battery Kit

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Our Price: $529.00

Batteries: Sold separately. Matching Group 34 batteries are required.

Availability:: Usually Ships in 24 Hours
Product Code: 131-JKDBK2A

Select your year model*:

G Screen Monitoring System:
No G Screen at this time
Add a G Screen [Add $269.00]

Add 10 Ring Terminals:
No ring terminals needed
Add 10-pack of ring terminals [Add $7.95]

Description Video and Media FAQ

  • Completely pre-wired out of the box
  • Fits 3.8L, 3.6L, Hemi 5.7L & 6.4L, LS, and European diesel engines
  • Boost switch included - jump start your vehicle off your second battery
  • Power & Ground bus bars make it easy to connect accessories
  • 200 amp Smart Isolator automatically handles all charging functions
  • Interface port for the G Screen monitoring system
  • Integrated fuse box holder and evap solenoid holder
  • Best quality wires, tin-plated copper connectors, and sealed heat shrink tubing
  • Powder coated for durability
  • Proudly made in the USA

The top cover plate has several innovative features in a simple package. All of the wiring has already been done for you, and the smart isolator comes pre-installed. The welded gussets on top have holes with grommets to route the wires directly to the correct battery post, so there's no guess work involved to make the connections. Use the extra grommets for routing your own accessory wires cleanly and neatly to the power and ground bus bars. High quality battery terminal connectors are crimped to the flexible 2 gauge wire connecting the batteries together. With all the wiring integrated into the top plate, servicing your batteries has never been easier. Simply pull the terminals off the battery posts, remove the 4 easily accessible bolts securing the lid, and all the wiring can be lifted up and out of the way to service your batteries when necessary.

The included smart isolator gives you automatic control of all the charging functions with no interaction required.

Here's how it works.

  • When both your batteries are fully charged at 13.2 volts, they are automatically connected and are charged at the same time.
  • When you park and turn off the engine, but continue to use accessories such as lights or the stereo or a CB, both batteries begin to drain down.
  • When your main cranking battery reaches 12.7 volts, the smart isolator separates the batteries, so that your cranking battery will have enough power to start the engine. The second battery continues to power your accessories for as long as it will last.
  • After you crank the vehicle, your main cranking battery will be charged up to 13.2 volts first, and then the isolator will begin charging your accessory battery. By only charging one battery at a time, your alternator is protected from excessive strain.

What if your cranking battery is somehow drained down too low to be able to start the vehicle? We have a solution for that.

  • Press the Start Boost button and the isolator will connect both batteries together for 1 minute, acting like built-in jumper cables to jump start your engine off your accessory battery.
  • As long as the accessory battery has enough power, you'll be able to start your vehicle instead of being stranded with a dead battery!
  • The alternator will charge both batteries for 1 minute, then switches back over to automatic mode to reduce the strain on your alternator.

Also includes high amp power AND ground bus bars. The bus bars are already pre-wired to the accessory battery. Now you can quickly and easily connect your winch, lights, amplifiers, and lots more while keeping the wiring neat and orderly. Your winch or other high-amp accessories go onto the large center post on the bus bars, and all your other accessories go directly to the smaller screw terminals on the bus bars.

2007-2011 model years require a short extention cable for the evap solenoid. The extension is made with OEM connectors and wires to ensure a perfect watertight fit for easy installation. This piece is not required on 2012+ JKs. Be sure to specify your year model when ordering.

Battery Options:
  • Any Group 34 size battery will fit our tray (Note the 34R is not compatible - the posts are reversed and will not line up with the wires)
  • For your convenience, we offer the Odyssey 34-PC1500T, an excellent battery that has the most cranking amps and reserve capacity of any brand
  • NOTE: Batteries ordered through Genesis Offroad will ship separately from an Odyssey warehouse in California.
  • Optima Red Top is a good engine starting battery, but not recommended or warranted for use in deep cycle applications. 800 CCA, 50 Ah capacity, 100 minute reserve time
  • Optima Yellow Top is a good high power, dual purpose engine start and deep cycle battery. 750 CCA, 55 Ah capacity, 120 minute reserve time
  • Odyssey 34-PC1500T is for those who need the most capacity possible! 850 CCA, 68 Ah, and 135 reserve time
  • The original factory battery will not fit due to its larger size
  • Both batteries must be the same physical size for the top lid to securely hold them in place

Smart Isolator:
Our dual battery kit comes with a smart isolator and solenoid rated to handle a continuous 200 amps of current flowing through it. It will handle current spikes of up to 750 amps for up to 30 seconds.

Optional G Screen Monitoring System
Need to keep a closer eye on your batteries? Check out our dual battery monitoring system - the G Screen.
  • Voltage levels for each battery
  • Remote status indicator
  • Background color changes based on battery status
  • Remote boost button
  • Completely pre-wired for you!
  • Multiple mounting options (A pillar, dash, or in an sPod over the rear view mirror)
  • Order with your battery kit to combine shipping

Already know you want one? Simply add it from the options above, or see more details on the G Screen product page first.

Optional ring terminals

Are you planning on connecting some accessories to the power & ground bus bars? We offer this convenient 10-pack of high quality, adhesive-lined heat shrink ring terminals. These are much better quality than the cheap ring terminals at the auto parts stores. Used with 16-14ga wire - the most common size for low amperage accessories like LED lights, CB, etc. Add a pack to your order from the options above.

Featured Media:

Detailed Installation Instructions
Motorhead Garage tv features Genesis Offroad
Genesis Offroad at Overland Expo East 2014 - Dual battery kit and G Screen Overview
Genesis Offroad JK Dual Battery Kit Overview
Fitment Info
  • Fits all Jeep JKs, 2007 - present Note 07-11 models require an extension cable for relocating the evap solenoid
    Engine compatability:
    • 07-11 3.8L
    • 12-18 3.6L
    • European diesel engines (left hand drive only)
    • Hemi engines - 5.7L, 6.1L, 6.4L
    • LS engines including the new LS3
    Power add-on compatibility
    • RIPP Supercharger
    • Prodigy Performance Turbo
    • Magnuson Supercharger
    • Sprintex Supercharger
    Snorkel compatibility:
    • AEV
    • Rugged Ridge
    • Volant
    • ARB
    • Not compatible with the River Raider cowl snorkel
    Works with aftermarket air intake systems that use the factory air box space.

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 24 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Great customer service September 12, 2019
Reviewer: David McNaughton from Assiniboia, SK Canada  
Just wanted to write a review to share my experience.  I ordered my kit 4 or 5 years ago.  At the time I tried ordering on line and because I am from Canada it wouldn't work so I had to call. I spoke to Shane and he was busy at a trade show but still took the time to help me. And recently I have been having issues charging my accessory battery.  Shane has been great to deal with in emails trying to help me diagnose the problem and even took the time to talk to me on the phone. Huge help and great customer service.  Above and beyond.  As for the kit itself it was easy to install.  I even did it while on crutches.  I love how secure everything is and how well put together the kit is. I really like the self boosting feature. I would buy it again in a heartbeat.  And have recommended it to others.  You have a great product and your customer service is absolutely fantastic.  Thankyou again for all your help.

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  0 of 0 people found the following review helpful:
5 of 5 Great experience August 26, 2019
Reviewer: Paul from California  
What a great experience from purchase through the installation. Your products were well packed and arrived quickly. The installation instructions on YouTube added to the printed ones. Installation went smooth and I was very impressed with the fit and finish of the battery tray and electronics. In use the dual batteries give me a safety when "out there" camping and wheeling solo. I wish you and your company all the success you deserve.

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  0 of 0 people found the following review helpful:
5 of 5 Customer Service/Product Review August 12, 2019
Reviewer: Jeff from Virginia Beach, VA United States  
The JK  Dual Battery Kit has been the absolute best piece of tech I have installed on my vehicle. From the inception, Shane has taken an unparalleled amount of attention to each and every question, has mitigated all potential hurdles, and provided me with hands down the best customer service I’ve ever received. The product has performed flawlessly and has given me the piece of mind I was looking for. I encourage anyone to look no further and put your faith in Shane and his products as they will not disappoint.

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  1 of 1 people found the following review helpful:
5 of 5 3.8L Input January 26, 2019
Reviewer: Matthew Kepler from Denver, CO United States  
Definitely a great product!  It's well made and the youtube instructions were very good.  However, I drive the 3.8 and the recommended solution to the big, blocky connector was to put it UNDER the new battery tray, which is fine but is basically exposed above the shock mount.  This drove me crazy and I did not like the connector so exposed.  After a bit of wire management, I was able to squeeze it under the fuse box, therefore not leaving any major wires exposed.  I know its a tight space, but it would be great if Genesis could come up with a better solution... Still a great product and I would recommend it to anyone.

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  0 of 0 people found the following review helpful:
5 of 5 Simply awesome September 9, 2018
Reviewer: Joe Davidson from San Diego, CA United States  
Amazing product. Install was straightforward with step by step directions and videos. Shane provided excellent service and it is one of my all time favorite mods for my jeep.

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