Description
4Runner® Dual Battery Kit Includes:
- 1 (SBI) True® Smart Battery Isolator kit with mounting screws
- 20 feet #6 high flex red cable with tinned copper cable lugs
- 3 feet #6 high flex black cable with tinned copper cable lugs
- 2 positive brass alloy battery terminal ends
- 1 negative brass alloy battery terminal end
- 3 loose crimp-on tinned copper cable lugs
- 2 sections of adhesive lined shrink tube
- 5 zip ties
- 1 installation manual
- 1 dual battery wiring kit diagram
Product features
Either you’re supplying extra devices, providing auxiliary lights, or operating heavy-duty equipment, this package has the electrical capability you need to keep your Toyota 4Runner going smoothly.
- AMP: Alternator delivers up to 140 amps.
- Safety: 4Runner® dual battery isolator kit is anti-vibration, sealed against water, and resistant to heat.
VSR: Voltage-sensitive relay with charging precedence on a starting battery. - Durable Construction: Crafted from premium materials, including heavy-duty wiring and corrosion-resistant components, this kit is built to withstand the rigors of off-road driving and harsh environmental conditions.
- Compatibility: The compact size and cable length make the kit compatible with both old and current 4Runner models.
- Optional: A Single Meter Dual Display (SMDD) battery voltage meter kit can be incorporated, sold separately.
The True® 4Runner® Dual Battery Isolator Kit is great for Overland enthusiasts, metropolitan drivers, off-roading, and outdoor explorers. - Efficiency: It has upgraded internal programming to ensure optimal performance with automotive alternators. (PEP)
- Anti-corrosion: It incorporates flexible welding cabling and an adhesive-lined dual-wall shrink tube for anti-corrosion and provides complete waterproofs.
- Complete Installation Kit: Each True® Toyota® 4Runner Dual Battery Kit comes with all necessary hardware and instructions, making installation a straightforward process for both DIY enthusiasts and professional mechanics.
- Compatibility: Compatible with a wide range of Toyota 4Runner models, ensuring broad applicability and versatility across different years and configurations.
Manufacturer Warranty: Backed by a comprehensive warranty, providing you with confidence and peace of mind in the reliability and performance of your investment.
- Made in USA: It is made in the United States and comes with free shipping via USPS Priority Mail.
The True® 4Runner dual battery kit comes with all necessary mounting hardware, allowing for easy secure installation. It works with dry cells, flooded lead-acid batteries, AGMs, and hybrids.
The True® 4Runner dual battery kit is specifically designed and engineered for automobile and marine applications, and it is entirely American-made.
A TRUE® exclusive!
How the True® battery isolator works
1. Separation of Functions: Typically, one battery is used for starting the engine (the starter battery), and the other is used for powering auxiliary devices, such as lights, radios, refrigerators, and other electronic devices when the engine is off. The 4th Gen battery isolator ensures that the starter battery remains fully charged and unaffected by the drain from auxiliary devices.
2. Simultaneous Charging: When the engine is running, the alternator generates electricity, which the isolator then uses to charge both batteries. However, it prioritizes the starter battery to ensure it is always fully charged and ready to start the engine. Once the starter battery is fully charged, the isolator then directs charge to the service battery.
3. Prevent Battery Drain: Without a True battery isolator, using auxiliary devices could potentially drain the starter battery, leaving you unable to start the vehicle or boat. The isolator prevents this by ensuring that only the service battery is used for auxiliary power.
4. Optimal Charging: Dual battery isolators for 3rd, 4th, 5th 4runners are designed to manage different types of batteries that may have different charging needs. They ensure that each battery receives the correct charge required to maintain its health and longevity.
5. Safety and Reliability: By separating the batteries and managing their charge independently, (3rd,4th,5th,SDHQ) 4runner battery isolators improve the overall safety and reliability of the vehicle’s electrical system. This setup helps in reducing the likelihood of electrical failures and extends the life of the batteries.
CUSTOMER PHOTOS AND VIDEOS
(These videos are not endorsed or represented as an “Official Installation video” by True Amalgamated and True Amalgamated accepts no responsibility for its content. It is produced by the end-user as stated. Follow entirely at your own risk.)
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Kenny Storkie –
For my fourth-generation Toyota 4Runner, I purchased these truck battery isolators. The main concern with this product is the voltage-sensitive relay. For my auxiliary battery, I used a stock battery hood-down kit and 1/4″ eye bolts.
I discovered that the relay was not functional during the initial installation.
Change the relay’s battery leads if this occurs to you. The back of mine has a mistaken label. Make sure the ground line is securely fastened to the relay. It operates perfectly, and I’m very happy about that.
Eli Patterson –
Installed easily and comes with simple instructions. Does an excellent job of keeping my backup battery charged. It also features a relay that reverses the flow of electricity to your main battery, which works quite well. It’s nice to know you can jump start yourself.
Aaron Watkins –
I require a lot of power in my Toyota Tundra for business. My main starter battery has dropped too low to start several times. The True Smart Battery Isolator resolves the issue. The only thing I would change is to acquire a package with an additional 6′ of power wire.
Martin Ward –
Great Toyota dual battery system! I placed a second 100 amp Renogy AGM battery with an inverter, cigarette lighter, and USB ports in the back of my Tundra truck roof. Easy to wire, with excellent directions.
Hector Ward –
It’s not too complicated since it accomplishes what it’s supposed to do. I drove 1700 miles in my Tundra with peace of mind considering that I kept my second battery ready in case of a problem.
Marlin Ward –
It works well after a quick installation to my , and the manufactuirer should spend in research and development. My 2018 Toyota 4runner requires somewhat more application than what the instructions specify.