About this item

*Function: The isolator is smart-charging and equalize in charge between two batteries. It will prioritize charging to the starting battery, which avoid a failure of strating battery. Once the starting battery is full, reaching 13.3V, the isolator will allow power to flow to the auxiliary battery. But isolator will cut off the current when the starting battery drops to 12.8V.

*Easy Installation: This kit is easy installation with complete and convenient accessories, providing reliable and efficient performance for your vehicle or boat, you do not need alternator or ignition connection. This 12V dual Battery Isolator is featured with waterproof, dustproof, and vibration-proof construction.

*Led Indicator: The 140Amp Dual Battery Isolator comees with red LED indicator. When the dual battery isolator is turned on, the LED indicator lights up, when it is turned off, the relay indicator light is off, it is more convenient to observe the charging status.

*Wide Application: The Dual Battery Isolator Kit is small and easy to carry, and it is widely used in most cars, RVs, trucks, tankers, SUVs, ships, boats, yachts.

Features

Function: Cut in is 13.3 Volt and Cut out is 12.8 Volt. Two 12V batteries are connected in parallell through this voltage sense relay. Let the car generator charge both batteries (the starter battery and the leisure battery).

Designed for separate charging of two battery systems, both batteries need to be charged separately (for 12V lead-acid batteries and lithium batteries).

Allow to having two separate power sources while charging by one alternator.

Ensure your primary battery is always charged and ready to start your engine, the secondary will be charged after the primary battery's volts exceed 13.3 volts.

This 12V 140 Amp Dual Battery Isolator Kit will come with all necessary accessoires for convenient use.

Widely used for car, vehicle, RV, ATV, UTV and boat, also two battery electrical equipment.

WORKING PRINCIPLE

When the voltage of start battery is higher than cut-in volts, the smart battery isolator (SBI) keeps engaging, two batteries (start and house) are charged simultaneously. The unit Indictor (LED) is on. When the batteries no longer have a charge from the alternator, and loads on the batteries begin to drain them. Unit Indicator (LED) is on. When the voltage drops below cut-off volts for 5 seconds, the SBI senses it and disengages, separating both batteries. Unit Indicator (LED) is off. When the vehicle is restartd, the start battery has reached the cut-in volts, the SBI engaged again. The device Indicator (LED) is on.

Package Included

1 × 140 Amp voltage sensitive relay (VSR)    

3 × 1Ft red battery cable

1 × 10ft red battery cable  

2 × positive brass battery terminals and 2 × MIDI fuse holder with 80 amp fuse. 

all necessary accessoires for convenient use. You don't need to buy extra accessories.