Function: The Voltage Sensitive Relay (VSR) ensures that the primary battery is always charged and ready to start the vehicle by cutting in at 13.3 volts and cutting out at 12.8 volts. When your engine is turned on and the starting battery is fully charged, the isolation will start charging the second (auxiliary) battery at the same time. Enables you to charge two batteries from one alternator at the same time.
Safe and efficient: The dual battery isolator is made of high-quality material casing and a silicone seal, withstanding extreme weather conditions and vibrations. Its IP66 waterproof rating ensures safe off-road use in dusty, wet, and unpredictable environments, providing you with a reliable and durable solution for your marine or automotive dual battery needs.
Wide Application: Like Having Two Separate Power Sources, The Dual Battery Isolator Kit Enables Your Accessories to Run From a Separate Battery While the engine is not running on your vehicle While keeping your Main Battery Charged and Your Vehicle Always Ready to Go and Start When You Want It. Suitable for 12v camper van trucks, caravans, RV, ATV, UTV, Boat and camping applications.
Real-time voltage display: The Dual Battery Isolator 12V 140 AMP is equipped with an LED display that shows the current voltage status in real-time so that you can check the battery status at any time. Important Note: This item is not compatible with Lithium Batteries
Package Includes: 140amp smart battery isolator with voltage display; Mounting Hardware(screws, nuts, spring washers, ring terminal).

Product description

Features

Waterproof

Made of high-quality material casing to protect the battery isolator, and the interior is sealed with silicone to make it waterproof.

Silicone sealed interior

It is the only unit designed with cutting edge programming to deliver optimum performance, avoid the dead battery.

Led Voltmeter

Check your battery voltage directly at any time, more convenient and safe.

Easy Installation

This dual battery isolator kit includes all the accessories you need, which is easier to install and operate.

Specification

Volt	12V DC
Cut-in	13.3V
Cut-out	12.8V
Intermittent Current	140A
Continous Current	125A
Operation Temperature Range	-30℃-105℃

Storage Temperature Range	-40℃-125℃
Power Stud	M6 stainless steel
Water Resistance rating	IP68
Disengagement Delay	3-5 seconds
Surge Protection	Built-in

Application

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Customer Reviews	4.2 out of 5 stars 263	4.2 out of 5 stars 263	4.5 out of 5 stars 94	4.5 out of 5 stars 781	4.7 out of 5 stars 5,041	4.0 out of 5 stars 56	3.4 out of 5 stars 79
Price	$93.49$93.49	$21.59$21.59	$32.39$32.39	$14.39$14.39	$12.14$12.14	$16.92$16.92	$15.99$15.99
Voltage	Cut-in 13.3V; Cut-out 12.8V	Cut-in 13.3V; Cut-out 12.8V	12-48V	12-48V	12-48V	12-48V	12-48V
Continuous Rating	125A 12VDC	125A 12VDC	600A 12VDC	200A 12VDC	275A 12VDC	200Amps 32VDC Max	50Amps 50VDC Max.
Intermittent Rating	140A 12VDC	140A 12VDC	455A 12VDC	300A 12VDC	455A 12VDC	300Amps	75 Amps
Cranking Rating	/	/	1250A 12VDC	1000A 12VDC	1250A 12VDC	1000 Amps 5 sec.	300 Amps 5 sec.
Switch Function	On-Off	On-Off	1-2-Both-Off	1-2-Both-Off	2P SPST OFF-ON	2P SPST OFF-ON	2P SPST OFF-ON
Termination Stud Size	M6 1/4''(6mm)	M6 1/4''(6mm)	M10 3/8" (10 mm)	M10 3/8" (10 mm)	M10 3/8" (10 mm)	M8 5/16"(8 mm)	M4 1/8" (4 mm)