Purpose: this voltage sensitive relay is design for two battery systems (SUITABLE for Acid-Lead batteries, NOT SUITABLE for Lithium batteries), allow to having two separate power sources while charging by one alternator, it's all need to charge and isolate two battery systems.
VOLTAGE SENSITIVE RELAY: The KeyLine Automatic 12V 140 Amp Dual Battery Isolator is all you need to charge Two Battery Systems. Voltage Sensitive Relay (VSR) cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to start your vehicle.
Feature:The dual power isolator adopts imported power management chip, which is a new electronic circuit intelligent automatic management. With Strong waterproof, low loss, good heat dissipation, high efficiency, it has all advantages what you want.
Widely Compatible: used for DC 12 V two battery systems isolate and charge, universal used for car, vehicle, RV, ATV, UTV and boat, also two battery electrical equipment.
Easy to use: this VSR comes with blue ring terminal and 4 bolts for install. 100% SATISFACTION if buy.
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