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Ram Promaster Cargo Van

RAM Promaster Battery Isolator Kit

September 16, 2017 3:28 am

The RAM promaster cargo van is designed to support small business for their deliveries. Mostly business that use this are those engaged in food industry.

Powered by heavy cooling system, this cargo van is perfect delivery van.

To avoid engine starting problem, separate the electric power between cooling system and engine power requirement. Used our TrueAm RAM Promaster Battery Isolator Kit

12 Volts Dual battery isolator switch
140A relay capacity
150Amps alternator supply
This is complete automatic and historically proven technology
Do It Yourself vehicle’s accessories.


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F150 dual battery kit

September 16, 2017 3:10 am

Our TrueAm dual battery isolator is for all type of vehicle. This battery isolator system is perfect for car and truck with complete multimedia installation.





Where your are looking for any of these option, our medium and heavy dual battery kit are perfect best choices

  • dual battery isolator for ford f350 diesel
  • dual battery kits for 1981 ford truck
  • f150 dual battery kit
  • ford super duty dual battery kit
  • ford f250 dual battery kit


Toyota Tacoma Dual Battery Kit

September 14, 2017 10:40 pm

Looking for Toyota Tacoma Dual battery kit, you found the right place. DFNA have been in the battery isolator industry for more than 7 years.

We have stores in eBay, Amazon and various distributor around United States. We offer 4 to 7 days delivery depending on location.

With the tacoma battery isolator system, there will be no complain about dimming headlights, continous playing of music with your can audio system.

We all know that the power consumption by the AMP is causing power issue in your car. This sound and other electronic car accessories are robbing your car battery and your alternator needed electricity to perform efficiently.

Get the best best dual battery kit for 2015 2016 2017 tacoma at DFNA now!

Putting prolonge pressure to the vehicle alternator shorten its lifespan. The worse scenario is that your car failed to start engine when you are in a long distance travel or in a city where traffic penalty is eminent.

Through Tahoma battery isolator kit, you will prevent this thing to happen since this technology is proven to preserve enough power for your spark plug to ignite the car engine.

DFNA provides 30 days product guarantee for Tahoma dual battery kit or isolator system.

  • 140 Amp Voltage Sensitive Relay
  • Priority charging for starting battery
  • Alternator outputs up to 150 amps
  • Fully Automatic, Proven Technology
  • Easy to Install




Tag: best dual battery kit for 2015 tacoma


Smoker Craft

Smoker Craft battery Isolator

September 8, 2017 12:08 am

Smoker Craft battery Isolator is a solution for a complete fishing enjoyment.

This small fishing craft known as Smoker Craft is easy to acquire and fit for all type of fishing ground like lake, river and beaches. However, if the Smoker Craft is getting older you can no longer rely on battery performance. All battery will reduce reliability after one year.

Smoker Craft
Nothing to worry since Smoker craft battery isolator system is a perfect accessories for your boat. This dual battery isolation system will guarantee a continuous supply of electricity to your boat as well as preserver enough electricity to start your Smoker craft.

Can-am Maverick UTV

Can Am Maverick Dual Battery Isolator

June 25, 2017 2:31 am

Can-am Maverick UTVDo you owned Can-Am Maverick 3×3 or Turbo model? Do you love  outdoor and adventure? You found the best partner for your Can Am UTV. We have DIY technology with more than 5 years in the service.

Our advantages are:

  • Easy to install
  • Anti Vibration
  • Very good Amazon reviews





Can-Am Maverick Turbo




Agile Roadtrek battery isolator

Agile Roadtrek Battery Isolator

June 25, 2017 2:20 am

If you are looking for best battery isolator for roadtrek agile then you found the right technology.

Agile Roadtrek battery isolator

Agile Roadtrek battery isolator

Our TrueAm dual battery isolator for roadtrek vehicle. This technology is Do it yourself technology complete with instruction on installation and diagram.

This is easy to maintain, easy to install and we have available in California, Florida, Texas< Massachusetts, Allabama, Georgia, Mennesota, North Carolina and all USA via reliable courier. 


Marine Battery Isolator System

June 18, 2017 11:50 pm
Marine Battery Isolator System

Marine Battery Isolator System

This is an excellent marine battery isolator kit that allows you to add a second or third battery system in your boat. With its basic functionality that utilizes the most modern battery technology, this kit keeps all batteries charged from the engine’s electrical parts while keeping the starting battery isolated. These features keep you out of trouble in the sea.


Using the same relay setup in our boat, this marine dual battery isolator kit keeps boat batteries and accessories charged, all the while isolating the boat’s starter battery system to keep it charged as well. One major advantage of this system is that you don’t need to reroute the fully automatic alternator wires. With this kit, you are in total control as it features a do-it-yourself approach.


This marine battery isolator system has boat battery isolator switches, which is responsible for safe separation and charging of the starter system as well as the auxiliary batteries found in all solar and volt marine applications. When firing the engine, the starting battery is separated and the only one allowed to charge instead of the auxiliary batteries. Both batteries will be charged once the voltage reaches 13.3 volts, engaging the voltage sensitive relay (VSR).


Once the engine stops and the battery charge falls below 12.8 bolts, the system’s VSR feature allows the separation of the starting and marine auxiliary system, turning off the indicator light and powering the boat auxiliary battery kit without the risk of draining all the power from the starting battery.


The VSR also features a Dual Sensing that monitors the charge of the two batteries. It is responsible for charging both batteries if only either one of them is receiving a charge.


This outstanding marine dual battery installation kit requires easy installation. It comes with all necessary components and instructions for proper installation. With this kit, cutting into a factory wiring and voiding manufacturer warranty is not needed.

Honda pioneer 500 dual battery kit

June 18, 2017 11:38 pm

Honda Pioneer 500 8 UTVIf you are looking for Honda pioneer 500 dual battery kit  you found the right place.

TrueAm dual battery system advantage

1. Do it Yourself technology with the help of guide

2.  Undergoes a 3 different quality assurance system

3.  Simple technology

4. Easy to use

5. Has huge positive amazon reviews

6. Applicable to  majority of vehicle or motor with 140A

7. Operate at -30 to 105 degrees

Get your Honda pioneer 500 dual battery kit here.








Chevy Majestic Battery Isolator

June 7, 2017 3:08 pm

Looking for chevy majestic battery isolator at whatever year model? Then you come to the right place. The TrueAm technology is suited to any GM vehicle specially on VAN and RV’s. 

Either old model like chevy majestic or  2000+  Chevrolet Majestic Hi-Top Conversion Van, TrueAm battery isolator kit is designed with various standard certification.

Since our unit has been QA and tested by the online vehicle parts review magazine, we guarantee licensed and original technology.

 Chevy Conversion Van Majestic SSX