3 YEAR WARRANTY: Every Spartan Power 12V 140 Amp Dual Battery Isolator is backed by a 3 year warranty.When this voltage goes above 13.3 volts for approximately 12. This voltage sensitive relay ( VSR ) is an automatic charging relay for dual. A smart battery isolator is the ultra-simple and most technologically advanced method of automatic battery isolation. The unit operates as an isolator by sensing the level of voltage on the chassis 12 volt system. Waterproof protection up to water projected by a nozzle against enclosure from any direction. Advanced Dual Battery Isolation with Override Switch - Allows Reverse Charging. IP65 Protected: IP65 enclosure offers complete protection from dust, oil, and other non-corrosive material.VANLIFE? Now you can safely add additional batteries to help support your accessories such as power inverters, MPPT charge controllers, solar panels, refrigerators, audio, lights, pumps, winches, etc.A Voltage Sensitive Relay (VSR) cuts in at 13.3 volts and cuts out at 12.8 volts. /rebates/&252fci1031-battery-isolators-relays.html26tc3dbing-&idsonicelectronix&nameSonic+Electronix&ra3. VSR – VOLTAGE SENSITIVE RELAY: Automatic 140 Amp Dual Battery Isolator enables you to charge two battery systems from one alternator at the same time.EASY TO INSTALL: Designed for dual battery systems or second battery bank in your van, truck, RV, UTV, off-road vehicles, marine boats, etc.

12v battery isolator relay