Having the answers to those three questions makes choosing the right isolator for your needs a snap. Supplied complete with rubber sealing cap on both switch and key. How many batteries do you want your system to charge? Simply turn key and remove to isolate and secure the electrical system.
When the vehicle is restarted and the start battery has recharged to 13.4 volts the Smart Battery Isolator engages, the LED will illuminate and the second battery is connected to receive charging. How many amps does your alternator output? When the SBI LED is out the batteries are separated thus preventing the power of your start battery from being drained by use of the accessories powered from the second battery.Consider the following when making your selection: But DC-DC chargers are way more flexible and capable than battery isolators, and we think theyre the best overall choice for vanlife. When two or more batteries are installed in your vehicle (RV, Boat, Limousine, Emergency Vehicle, Automobile, etc.) powering different systems, Battery Isolators allows them to share a common charging source while being independently discharged.īattery Isolators are commonly used to maintain the starting battery charge while using a second battery to power accessory items (sound systems, refrigeration, emergency lights, computer equipment, etc.) eliminating the fear of having a dead battery when trying to start the engine.Ĭhoosing Battery Isolators can be a daunting task for the uninitiated.
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