Battery Isolator I Controller
Battery Isolator I Controller

Battery Isolator I Controller

$95.50
Typically ships in 2-3 business days.
091-139-CONT-12
System consists of a controller that detects when a vehicleês alternator is charging the main battery and then closes a solenoid to tie-in charge to an auxiliary battery. When the engine is off or the charge voltage is no longer present, the solenoid opens to isolate the batteries. Upon –cranking” the engine with a charged auxiliary battery, the solenoid is energized to parallel the batteries and provide a starting boost. If the auxiliary battery is low, the controller senses that condition and the batteries are not paralleled. Uses a solenoid rather than an isolation diode which typically causes a 0.7V drop, thus auxiliary battery receives full charge voltage. The starting boost provided by the paralleled batteries is especially useful in cold weather or when the battery is low
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