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12V 140A Smart Dual Battery Isolator Kit with Voltage Display - Waterproof VSR with Auto/Manual Mode, Universal Dual Battery Wiring Kit for Car, RV, Truck, ATV, UTV, Boat, Marine

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$24.39

$ 9 .99 $9.99

In Stock

About this item

  • --SMART VOLTAGE SENSITIVE RELAY-- Can automatically disconnect or connect the auxiliary battery according to the voltage of the main battery.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,power.
  • --SMART DUAL MODE TECHNOLOGY: JESTMOTOR 12V 140A battery isolator kit features Auto/Manual modes. Auto Mode activates at 13.3V (charge) & disconnects at 12.8V via precision voltage-sensitive relay (VSR), while Manual Mode allows instant power control with LED indicators(Long Press the button for 3 seconds, the BLUE led will be On,and the manual mode is on). Perfect for RVs/boats needing dual battery management.
  • --REAL-TIME VOLTAGE MONITORING: Built-in digital voltmeter displays primary/secondary battery status simultaneously. IP67 waterproof housing ensures accurate readings in marine/ATV/UTV environments. Never risk dead batteries with 24 hous voltage tracking.
  • --PRESSURE PROTECTION: Automatically cuts off at <11V (over-discharge) or >17V (overload) to protect your car/RV/truck batteries. 140A high-current capacity handles winches/refrigerators safely, prevent sparks/short circuits.
  • --COMPATIBLE OPTIMIZATION MOST BATTERY: The dual battery isolator efficiently manages and protects power, preventing over-discharge of the main battery and ensuring full charging of the second battery. Extends battery life 2X longer than standard split relay kits, Application with most RVs, Cars Vehicles, ATVs, UTVs, Polaris, Can-Am, Boats, 12VDC Marine, 4wd, caravan, etc. A compact battery isolator can be placed almost anywhere.



Product Description

battery isolator

JESTMOTOR Dual Battery Isolator Kit 12V 140Amp Voltage Sensitive Relay VSR Double Battery Automatic Charger & Wiring Cable Kit

This Is a More Convenient Car Battery Disconnect Switch System That Can Remotely Master Kill Your Car Power System,A Proper Maintenance Will Extend And Protect The Battery And Engine Life.

The split charge relays allows the split charging of a second battery without discharging the primary battery or the start battery.

dual battery isolator

Digital Display Voltage Sensitive Relay

Features:

  1. Has Automatic/Manual Two Mode,The design of the digital voltage display not only facilitates real-time grasp of battery power, but also allows precise control of battery voltage.
  2. Function: Cut in voltage is 13.3V and Cut out voltage is 12.8V. Two 12V batteries are connected in parallel through this voltage sense relay. Lettng the car generator charge both batteries (Starter battery and a leisure battery).
  3. Design for two battery systems isolate and charge, and it allow to have two separate power sources while charging by one alternator.
  4. With an IP68 waterproof rating for all-weather use, this product is the ultimate power solution for all off-road and road trips!
  5. Widely used for car, vehicle, RV, ATV, UTV and boat, also two battery electrical equipment.

smart battery isolator

IP68 Waterproof

With high-quality materials and an IP68 waterproof, dustproof, and vibration-proof construction, our battery isolator delivers reliable performance even in harsh environments

smart battery isolator

Silicon Sealed Internal Layer

Using advanced programming, this dual - battery isolator delivers top - notch performance with zero energy loss, The outer enclosed casing and inner silicone - sealed layer protect the isolator from damaging substances.

smart battery isolator

Manual/Auto Mode

  • Manual State Function: Press the button for 3 seconds, the BLUE led will be On, and the manual mode is on. Press the button each time, you can complete the circuit connection and disconnection.
  • In auto mode, when the input voltage exceeds 13.3V, the circuit will be connected automatically, the voltmeter and red led indicator will also be ON. When the input voltage drops to 12.8V, the circuit will be disconnected automatically, and the voltmeter and led indicator will also be OFF.
voltage sensitive relay vsr

Voltage Sensitive Relay VSR Smart Dual Battery Isolator Kit

  • CUT-IN VOLTAGE: 13.3V; DCCUT-OUT VOLTAGE:12.8V DC.
  • Voltage Sensitive Relay (VSR) allows charging of two batteries simultaneously. When the engine starts and the starting battery reaches 13.3 volts, the VSR engages, allowing both battery packs to charge simultaneously (Starting Battery Pack and Household Battery Pack).
  • When the voltage drops below 12.8 volts, the VSR disconnects and separating the battery. This reduces the possibility of battery depletion, effectively protects sensitive electronic devices powered by indoor batteries, and extends their service life.
battery isolator 12v