1. Intelligent Voltage Sensitive Relay (VSR): The dual battery isolator features a VSR that automatically connects and disconnects the auxiliary battery and the starting battery based on their charging levels. When the starting battery reaches 13.2 volts, the car motorcycle VSR activate after 15 seconds, indicated by the LED light turning on. This means both batteries are connected and the system is operational. 2. Efficient Battery Management: With the mini voltage sensitive relay, you can effectively manage your batteries. The VSR ensures that the auxiliary battery is while protecting the starting battery from being drained, preventing any potential power shortage issues. 3. Seamless Battery Switching: When you turn off your vehicle's system, the voltage sensitive relay disconnect both batteries after 15 seconds once they reach 12.8 volts. This allows for a safe restart of your main battery, ensuring reliable power for use. 4. Easy Installation: The dual battery smart isolator is designed for easy installation. It comes with clear instructions and all the necessary hardware, making the process hassle-free. You can quickly set up the isolator and start enjoying the benefits of efficient battery management. 5. Reliable Performance: Built with quality materials and advanced technology, the VSR smart switch offers reliable and consistent performance. Name:Dual Battery Isolator Voltage: 12V Maximum working current:50A current:70A Current consumption-charging: 150MA Current consumption-standby: 1.5MA Insertion voltage: 13.2V Cut-off voltage: 12.8V Disengagement delay: 15 seconds Protection level: water- protection Suitable for cars, motorbikes, go-karts, beach cars, etc. Colour:Black Material:ABS Package Contents: 1 x Dual Battery Isolator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.