This is the Kodiak Industries dual battery system for Jeep TJs. Notice the way each battery is held securely in place by a billet aluminum bracket. We love seeing clean installations such as this one.This is the Kodiak Industries dual battery system for Jeep TJs. Notice the way each batter If you are like us, you probably have an assortment of electronic gizmos that did not come stock with your 4x4. Whether they add functionality-like a GPS or CB radio-or are simply there to intrigue onlookers while sounding cool-like a neon-lit subwoofer-aftermarket electronics are here to stay. Ultimately all those add-ons require more of one thing: voltage. O.E. engineers do not give you much extra to play with, nor do they anticipate items with high amperage demands such as winches. The results can really zap your fun away. Picture this: The trail gets tough, Johnny Jeeper arrives with a charging system that is basically on life support. A few short winching sessions later, the alternator is working overtime to replenish depleted battery. The vehicle starts to run funny. The winch starts to smoke due to low voltage...you can see where this is headed. This scenario can be easily avoided by simply adding a dual battery system along with a high-output alternator. Kodiak Industries manufactures dual battery management systems for most of the popular 4x4 vehicles on the trail today. Kodiak also offers high-output alternators for virtually any vehicle. Kodiak's dual battery kits come with everything you need to triple the reserve capacity of your factory-charging system. Included are two high performance Odyssey dry cell batteries, an isolation relay, and a dash-mounted switch that gives you the ability to control and manage the system for individual needs. Once installed, the whole setup looks awesome, and requires no custom fabrication or fancy installation tools. With detailed installation instructions, Kodiak's dual battery management system is an upgrade virtually anyone can complete in less than a day. Check it out. Unfortunately, this photo is all too common. A bungee cord was used as a tie down, overloaded and corroded terminals limit conductivity, and a literal spaghetti factory of mismatched wires power the vehicle's aftermarket componentry. Here you can see the dual battery tray, isolation relay, and mounting brackets that Kodiak Industries includes with its kit. We like the fact that the new battery tray is colored with a dual stage powdercoating process for added corrosion resistance. The billet aluminum battery hold-downs are blue anodized and machined for good looks.Here you can see the dual battery tray, isolation relay, and mounting brackets that Kodiak This photo shows all of the wiring components included with the kit. Notice the three-position micro toggle switch. Together with the dual color LED, this switch serves as the user interface for the system.This photo shows all of the wiring components included with the kit. Notice the three-posi The Odyssey PC1200 batteries that Kodiak Industries includes are military spec and come with metal-jacketed cases. This metal jacket protects and insulates the low resistance, pure virgin lead plates and helps to maintain rigidity within the battery. Filled with a state-of-the-art compressed glass mat material separating each of the lead plates, the Odyssey PC1200 is built for the most extreme of uses. Each PC1200 battery contains about one tablespoon of laboratory-grade sulfuric acid that is absorbed right into the mats, which is why all Odyssey batteries are classified as dry cell batteries. We like that these batteries are able to survive high vibration environments and multiple high discharges thanks to their robust design.The Odyssey PC1200 batteries that Kodiak Industries includes are military spec and come wi This installation requires that the factory battery tray be removed before the new dual battery tray can be installed. The larger tray is constructed from 12-gauge steel sheet material and features double-wall construction for added strength. The unit attaches to the factory mounting location using factory hardware.This installation requires that the factory battery tray be removed before the new dual ba Here you can see the new larger battery tray prior to mounting batteries to it. Kodiak utilizes every inch of free space to make the system fit without modifications to the factory A/C lines or dryer unit.Here you can see the new larger battery tray prior to mounting batteries to it. Kodiak uti With the first battery in place, you can see how tightly the setup fits the stock TJ battery area.With the first battery in place, you can see how tightly the setup fits the stock TJ batte Kodiak Industries manufactures all of its cabling from ultra-fine copper cable that features 648 individual copper wires configured in 47 strands wound together in 14 bundles. This type of cable remains flexible while achieving maximum conductivity with minimal impedance for a given size. For each of the cable ends, Kodiak's owner Yawan Smith crimped the terminal to the wire using a military- and UL- approved crimping system. Next, a special silver solder was used to finalize the connection. This method provides a super strong and ultra-conductive connection between the copper cable and the crimped terminal. These little details make all the difference with high amperage demand.Kodiak Industries manufactures all of its cabling from ultra-fine copper cable that featur The battery terminals that Kodiak Industries uses are also military grade. These terminals provide a positive, non-voltage drop, multi-terminal connection that is easy to remove for servicing the electrical system without causing damage to the battery posts. This terminal also makes adding additional circuits a much simpler process.The battery terminals that Kodiak Industries uses are also military grade. These terminals This photo shows the installation of the second battery in the vehicle. Each of these Odyssey PC1200 batteries features 1,200 cranking amps and a 93-minute reserve capacity (we tested it). If you compare the specs on each battery, two PC1200 batteries under the hood is like having two Optima YellowTops, but with less physical space required.This photo shows the installation of the second battery in the vehicle. Each of these Odys With both batteries in place, the technician focused on the wiring for the vehicle and the accessories that required power. Each item was reconnected to the electrical system using military terminals as well as color-coded heat shrink tubing. In this photo, you can see that the battery isolation relay mounts directly to the number two battery hold down bracket.With both batteries in place, the technician focused on the wiring for the vehicle and the While Kodiak was performing its magic on our donor TJ, they decided to clean up some of the owner's original handiwork. The fuse block shown here is another Kodiak Industries product and allows up to 100 amps to be distributed amongst six individual circuits. We like the way that this little unit cleaned up what was otherwise a mess under the hood. Kodiak offers several different fuse management solutions from 1 to 20 circuits, with options such as switchable on demand or always powered.While Kodiak was performing its magic on our donor TJ, they decided to clean up some of th The user interface for this kit consists of a three-position micro toggle switch with a two-color LED to provide user feedback. On the Jeep TJ, the switch is configured so that when the #1 (left) position is selected the LED glows green as soon as you turn the key on. The green LED tells you that the system is managing both batteries for vehicle starts and accessory power. In this position, the alternator charges both batteries and both are being exercised by electrical loads. When the #2 (middle) position is selected, the LED is off and the auxiliary battery is completely isolated from the system. This position ensures that you always have a fully charged backup battery on standby for emergencies. In this mode, the vehicle only pulls from and charges the primary battery. The third mode of operation (the toggle to the right) will cause the LED to glow red. Position three is similar to the first position in that it connects both batteries together for jump-starting scenarios when maximum electrical power is desired. The main difference between the first and third position is that the third position will keep the two batteries tied together even when the ignition is in the off position. SOURCES Kodiac Industries Gilroy CA 95020 408-591-1029 www.kodiacinc.com Odyssey Batteries 2366 Bernville Road Reading PA 19605 800-538-3627 www.odysseybattery.com By Robin Stover Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!