Land Rover Defender Blog

Why You Need A Battery Isolator Kit

Ben Gribbin

Ben Gribbin

July 17, 2019

Award winning automotive writer with experience rebuilding Land Rovers.


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Technological innovations have brought ease and convenience to people, especially when it comes to using vehicles. Today, vehicles’ parts and components have also improved to provide a more cost-friendly and power-efficient driving experience. This is where a battery isolator kit comes into play. The introduction of a battery isolator allows you to use gadgets and other embellishments in your auto while keeping your battery fully charged.

If you haven’t heard about battery isolator kits before, here’s what you have to know about them and why you need one for your car these days:

What is a Battery Isolator Kit?

Typically, a battery isolator kit gives you everything you need for the isolation of two batteries so you can charge them independently using an alternator while isolating the starting battery from the second one. The battery isolators are equipped with hybrid technology and state-of-the-art processes that enable one battery to provide power to auxiliary items and the other for the
vehicle itself.

Moreover, this electronic device kit is packed in a great transport case that allows you to simply keep them in a truck or under your car seat. Some vehicles that can get the most out of a battery isolator include boats, cars, ATVs, RVs, trucks, motorcycles, and many more.

If you consider having a battery isolator kit for your car, many companies and manufacturers offer a range of electronic voltage converters and other related products that you can choose from.

The Importance of Using a Battery Isolator Kit

There’s a wide range of benefits that come with using a battery isolator kit. Compared to a single standard battery, this device can provide an extended life for the main battery and protect it from failure.

Here’s why you need a battery isolator kit for your vehicle:
1. Offers Additional Charging Feat
With a battery isolator kit, you can charge a secondary battery from your vehicle’s electrical charging arrangement. Since most cars come with an alternator, which is responsible for controlling the flow of power and voltage output, then the setup of this electronic device kit can guarantee the proper distribution of power supply for your automobile.
2. Enables You to Use Gadgets and Extras in Your Car
Again, a battery isolator kit can allow you to utilize extras and gadgets in your vehicle without the need to separate them from the power framework. When the motor of your car starts to run, the device will generate sufficient voltage to serve many extras and gadgets being used in your vehicle. Also, another good thing about using a battery isolator kit is that you can still get the
most out of the auxiliary battery even if you stop the motor.
3. Prevents Unexpected Battery Failure
Life on the road isn’t easy. It requires an adequate amount of driving, which means you have to get your batteries fully charged to improve their power efficiency. However, a single standard battery isn’t an endless source of power for your vehicle. This is where a battery isolator kit enters the picture. This electronic device kit, for instance, protects your batteries from unexpected failure. It prevents your main battery, which runs your vehicle, from being completely depleted. With the additional power source the battery isolator kit provides, you can ensure that your extended or long hours of driving will not ruin your primary battery.
4. Serves as a Dual Battery Relay
A battery isolator kit can act as a dual battery relay for your vehicle. It allows you to separate the secondary battery from the primary electrical power system. The isolation will make sure that the auxiliary battery will not experience a discharge from the moment you start your car or use other devices.

Things You Need for the Installation of a Battery Isolator Kit

Now that you’re aware of the essential benefits of using a battery isolator kit, it’s time to take your car to the next level by proceeding with the installation of the said device. Below are the things you may need to install a battery isolator kit:

  • Battery Cable
  • Zip Ties
  • Fuse or Circuit Breaker
  • Deep Cycle Battery
  • Battery Terminal Lugs
  • Cordless Drill
  • Multimeter
  • Mechanic’s Toolbox

Final Thoughts

If you’re looking for a perfect device that can preserve power in your car’s battery, then using a battery isolator kit can be a great option. Even if you’re traveling for long hours in areas where you may not get sufficient sunlight, this electronic device can ensure you’ll have electricity on the road in any condition. So, keep the information above in mind about why you need a battery isolator kit for your car.

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