True® Ford Dual Battery Kit – Heavy Duty

(7 customer reviews)


The heavy-duty True® F150 Dual Battery Kit is a specific type of battery isolator designed to work with the Ford F150 & Raptor truck series. It is an advanced device that allows you to use two batteries simultaneously without the risk of draining one another.

  • True® heavy-duty F150 F250 battery isolator
  • Completely automated battery management
  • Primary battery charging priority
  • Alternator outputs of 12V and up to 150 amps
  • Delivery: USPS first class or priority mail
  • Free Shipping
  • Visit our return and warranty policies for details!
SKU: DBK12F150 Category:


Ford 150, Raptor Auxiliary Battery Kit Compositioncheby silverado

  •  True® Smart Battery Isolator fit for all Ford Truck models
  •  Black Flex cable with strong copper cable lugs
  •  Brass alloy battery terminal ends
  •  Crimp-on tinned copper cable lugs
  •  Adhesive-lined shrink tube
  •  Zip ties
  •  Installation Instructions

Product features

  • No voltage drop is guaranteed
  • Printed wiring diagram print for simple DIY installation.
  • Waterproof F150 battery isolator kit
  • Shockproof  isolator housing and heat-resistant wires up to 130 degrees
  • Vehicle warranty-friendly. There is no alternator connection.
  • True®  Ford Raptor & F150 battery isolator is maintenance free
  • Fit for all models including 2014, 2015, 2016, 2017, 2018, & 2019
  •  Maintenance Free technology

A TRUE®  exclusive!

All the TRUE® dual battery kits have proprietary cables that use adhesive-lined shrink tubes to maintain their anti-vibration and corrosion-proof properties.  All Ford F-150 model is offered in 7 trim levels: XL, XLT, Lariat, King Ranch, Raptor, Platinum and Limited are applicable to our True® battery isolator system.

The True® F150 dual battery kit is a system designed to provide a reliable and efficient way to manage the batteries that power accessories and appliances in a vehicle while maintaining the starting power of the main battery. It consists of two batteries connected in parallel with an isolator that separates the batteries when the engine is turned off, preventing the auxiliary battery from draining the main battery.

The True® dual battery kit for Ford is typically used in off-road vehicles, boats, and recreational vehicles where there is a high demand for power to run various accessories such as winches, lights, refrigerators, and communication devices. The kit ensures that the accessories can be powered without draining the main battery, which could leave the vehicle stranded or unable to start.



(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.)

Ford transit dual battery kit

Ford transit dual battery system installation video

Ford dual battery setup installation video


(Visited 3,244 times, 5 visits today)

Additional information



7 reviews for True® Ford Dual Battery Kit – Heavy Duty

  1. Carl Thos

    Had some cheap dual battery isolator, but they had issues. I threw them in the trash and got a new one from True. Though pricey, this heavy-duty smart battery isolator is well-functioning and hasn’t had any issues in the last four months.

  2. Justine Hundson

    This is a neat little arrangement that separates my Ford F150 battery from the wheelchair lift’s auxiliary battery. This keeps it from emptying the primary and auxillary battery,  which would be a negative thing as I intended to use them as a backup. The auxillary battery won’t  be used for anything until I need it.

  3. DFNA

    I’m a novice radio operator, and I use a home lithium battery to power the radios. The only way I could get my 2011 F-150 to charge both batteries without causing a problem with the battery management system.

    Furthermore, lithium cannot be paralleled with a flooded AGM or flooded lead acid battery; they must be separated. I tried a variety of approaches without success until I tried the Smart Isolator. And it works perfectly, keeping both the start battery and the lithium home battery completely charged.

  4. Samuel Myers

    My work trailers has two deep cycle batteries, and the cables that go from it to my tow car’s alternator are specifically designed for that purpose. Since leaving the trailer batteries plugged in would deplete my F150 starting battery, I wanted to be able to use the batteries without having to unplug them. This robust battery relay worked as intended. I wired it such that the relay control circuit is ignition switched.
    This way, when my tow car is shut off, the relay will immediately cut the trailer batteries off from the tow car battery. Although the True battery relay is a little pricey, it is totally worth it for my purpose.

  5. Joseph Burtona

    Once the truck trailer was plugged into the F150, I used it to isolate the battery. Because it was simple to install and I adore the voltage reading gauge, I am really pleased with this True F150 battery isolator.

  6. Ariel Lyndon

    This is what I’m doing to isolate my second battery, which is in the truck back. When the voltage falls too low, this separates my primary battery from my backup battery automatically. This ensures that you have enough power to turn on the engine. It also has the handy function of being manually turned on and off. This means that you may change the battery in your truck without interrupting your computer’s power supply by just turning this switch to manual, which will keep the additional battery charged even after you detach the primary battery. This preserves power to the dash’s radio, clock, and other settings that often require a reset following a battery disconnect.

  7. Philip Guilford

    Compared to the old Pain Less battery isolator system that was discontinued years ago, This True battery isolator was far simpler to install. There is no need for extra switches or to be concerned about changing batteries while the device is operating. Thus far, it operates well on both batteries.

Add a review

Your email address will not be published. Required fields are marked *

You may also like…