The battery isolator is attached to the vehicle's alternator, which is the device responsible for providing the vehicle with electrical power and for charging the vehicle's battery. A simple setup is one in which a vehicle contains two batteries, both of which are attached to the isolator. In addition, a battery isolator ensures that a vehicle's electrical system does not pull power from multiple batteries at the same time, which would rapidly drain all the batteries and cause the electrical system to fail. Battery isolators are used in large trucks, RV's, boats, utility vehicles and other vehicles that require multiple batteries and backup sources of power.Ī battery isolator separates multiple batteries from one another to ensure that a vehicle has access to a backup power source. A battery isolator typically is used in situations where multiple batteries are required, and its primary purpose is to ensure that the failure of a single battery will not incapacitate an entire electrical system. Some sort of battery isolator is required if the alternator is going to be used to charge more than one battery.Ī battery isolator is a one-way electrical device that allows an electrical current to flow in one direction but not the other. These batteries are typically deep cycle batteries that prefer to be partially discharged and recharged on a regular basis. The batteries used to provide power operation of DC and AC appliances in a work truck, recreational vehicle, or boat are called the house batteries. If this battery is drained down because the car won't start or the lights were left on, the battery life decreases rapidly and will probably remain dead the next time it is drained down. Automotive type batteries do not like to be discharged to a low level. This battery relies on the alternator to keep it charged up for the next cranking cycle. The vehicle (chassis) battery is typically an automotive type of battery that provides high cranking amps to start the engine. Work trucks, boats, recreational vehicles, long haul trucks and fleet vehicles all have a battery isolator if the alternator is being used to charge both the house and vehicle batteries. Shop 12 volt battery isolators at REDARC with free shipping in the contiguous US.įor help in choosing the best DC to DC charger or dual battery isolator setup for your needs, use the free REDARC dual battery selector.What type of battery isolator should be installed? With all this power and the ability to withstand the harshest conditions, you can count on REDARC for your next adventure. Choose from our range of dual battery isolators to help protect the starter battery’s excessive discharge, allowing your auxiliary battery to power your accessories.įor the ultimate set up, pair a REDARC dual smart battery isolator with a battery management system. ![]() Going overlanding? You provide the adventure, we’ll provide the power. ![]() ![]() Not to mention, they have a sophisticated fault detection system which can warn you of over-voltage, voltage drops and excessive draw conditions. With state of the art power saving technology, our dual battery isolator kits are compact in size and easy to install. Used as a solenoid priority system in a dual battery system, a multi battery isolator from REDARC will help you adventure further and for longer.Īs a microprocessor-controlled battery isolator, the REDARC Smart Start SBI range protects your primary battery by using your alternator to charge your auxiliary battery. Extend your vehicle’s battery life and ensure it remains charged with a REDARC dual battery isolator.
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