Download Installation Instructions
Genesis Offroad 2016-2020 Toyota Tacoma Dual Battery Kit .
Matching Group 34 Batteries are required.
The Genesis Offroad dual battery kit for the Toyota Tacoma is the most complete and easiest to install dual battery system on the market.
- Completely pre-wired out of the box
- Fits 2016-2020 Toyota Tacoma
- Uses the factory battery cables - no cutting required
- Heavy duty battery tray spreads the weight of the batteries over a larger area
- Boost switch included - jump start your vehicle off your second battery
- Power and Ground bus bars make it easy to connect accessories
- Smart Isolator automatically handles all charging functions
- Interface port pre-wired for the G Screen monitoring system
- Best quality wires, tin-plated copper connectors, and sealed heat shrink tubing
- Powdercoated for durability
- Proudly made in the USA
- Sold As A Kit
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 wires are routed 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.
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 allow the charging of your accessory battery
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 switch back 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 cable lugs 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.
- Any Group 34 size battery will fit our tray
- Batteries sold separately. Matching Group 34 batteries are required.
- Note: Batteries ordered through Genesis Offroad will ship separately from the tray due to shipping regulations
- Odyssey 34-PC1500T is for those who need the most capacity possible! 850 CCA, 68 Ah, and 135 minute reserve time
- 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
- The original factory battery will not fit due to its wider dimensions and the posts being in the wrong orientation
- Both batteries must be the same physical size for the top lid to securely hold them in place
- 200 amp continuous duty - capable of handling multiple high amp draw accessories such as big stereo systems or lots of electrical components
- Will handle spikes of up to 750 amps for short durations such as winching
- IP65 rating - water and dust proof for under hood environments
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 prewired for you!
- Multiple mounting options
- 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.