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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:: In stock, ships within 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
    • 12-17 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: 5 of 5 Total Reviews: 20 Write a review »

  0 of 0 people found the following review helpful:
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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  0 of 0 people found the following review helpful:
OK Dual Battery Kit May 6, 2018
Reviewer: Kevin Mark from El Paso, TX United States  
Amazing product. Excellent videos. Install was straightforward. Issue that occurred, which was our error, Shane worked us through. He also answered all emails within an hour. Then followed up to make sure we were satisfied with the kit.

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  1 of 1 people found the following review helpful:
Simple install May 3, 2018
Reviewer: Gary Indrebo from Vacaville, CA United States  
Probably one of the easiest installs I have done on my 2014 JKU. I watched the install video, read the instructions and played the video again during the install. 2 hours total, and that included a trip to Auto Zone to buy a new air filter. The most challenging part was attaching the final positive battery connection.

Well done GENESIS!

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  0 of 0 people found the following review helpful:
Fantastic! December 3, 2017
Reviewer: Mike L from INDIANAPOLIS, IN United States  
I purchased a complete Genesis dual battery kit, including the g-screen monitor for my 2015 JKU Rubicon fitted with a Rugged Ridge snorkel and was beyond impressed. Everything about the kit says "quality" - the design of the unit is genius, the build quality of the components is superior, and customer service was quick and responsive. Shane's installation video on Youtube made the install a great project that even a someone like me without a ton of mechanical experience can tackle solo with a little patience.
Installing the G-screen was also pretty straight forward, and the screen mounted cleanly in a Rugged Ridge A-pillar switch pod. All the switch slots were occupied on my switch pod, but I was still able to install the screen just above the top switch. There is just enough room between the upper bracket of the pod to fit the screen with just a little creative use of a Dremel.  
I would highly recommend this product to anyone considering a dual battery set up.

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  0 of 0 people found the following review helpful:
The best! November 21, 2017
Reviewer: Dan Tierman  
Just wanted to let you guys know how awesome the dual battery kit for my JK is. After installing many other products in my Jeep this by far is one of the best thought out on the market. The install couldn't have gone any smoother or easier.

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