Voltage Adjustable VSR

Advanced Voltage Sensitive Relay (VSR): Protect and Maximize Your Battery Life

If you’re running a dual battery setup, chances are it’s either damaging your battery or not maximizing your usable capacity. This 150A VSR is the ultimate solution, letting you customize voltage settings in 0.1V increments for precision protection and performance. Whether you’re preventing battery damage, ensuring your fridge doesn’t drain your car battery, or maintaining sensitive equipment, this VSR offers unparalleled functionality.

Why Upgrade to This VSR?

• Custom Voltage Cut-In and Cut-Out: Choose your own engage and disengage voltages, ensuring optimal use of your battery without over-draining it.
• Prevent Battery Damage: Avoid sulphation and permanent capacity loss by setting cut-off voltage to maintain at least 50% battery capacity. For example, cut off at 12.4V instead of the typical 12.8V to safely use your full capacity.
• Protect Sensitive Equipment: Maintain voltage above damaging levels for appliances, safeguarding your gear while extending run time.
• Single Battery Use: Protect your starter battery by cutting off devices like fridges before voltage drops too low to start your vehicle.
• Better Than Standard VSRs: Unlike typical VSRs that work at preset voltages, this device lets you choose voltages to suit your setup, providing greater safety and efficiency.
• Dual Battery Advantage: Seamlessly charge a second battery when the engine is running and disconnect when off, with customizable voltages for precise control.

Specifications:

• Voltage Cut-In/Out Adjustment: 0.1V increments.
• Max Load: 150A.
• Temperature Range: Operating: -20°C to 60°C, Storage: -25°C to 75°C.
• 1-Year Warranty: Built to last, with peace of mind guaranteed.

How to Set Up and Use Your VSR:

1. Isolate the System: Disconnect the power to your vehicle, boat, or appliance to safely install the VSR.
2. Connect the VSR Inline:
   • Attach the left-hand post to the positive terminal of your power source (e.g., starter or auxiliary battery).
   • Attach the right-hand post to the positive lead of the system you’re protecting (e.g., fridge or auxiliary battery).
3. Ground the VSR: Connect the ground terminal to a suitable vehicle or boat ground.
4. Add a Fuse: Place a 125A-150A fuse between the battery and the VSR for additional protection.
5. Position the VSR: Mount it securely away from engine heat but as close to the battery as possible to minimize voltage drop.

Setting the VSR Parameters:

1. Access Settings: Hold the SET button for 3 seconds to enter the menu.
2. Set Cut-In Voltage (U1): Scroll to U1, press SET, and adjust to your desired engage voltage (e.g., 13.1V to start charging).
3. Set Cut-Out Voltage (U2): Scroll to U2, press SET, and adjust to your desired disengage voltage (e.g., 12.4V to stop over-draining).
4. Adjust Delay (t1/t2): Set the delay time for engaging/disengaging (default: 10 seconds).
5. Exit Settings: Leave the menu for 10 seconds to save your changes.

Use Cases:

Example 1: Dual Battery Fridge Protection

• Prevent your auxiliary battery from draining below 50% capacity.
• Set U1 to 13.1V and U2 to 12.4V to maximize runtime while protecting battery health.

Example 2: Single Battery Setup

• Stop devices like fridges from draining your starter battery.
• Set U2 to 12.6V, ensuring enough charge to start your vehicle.

Example 3: Dual Battery Charging

• Safely charge a second battery when the engine runs and isolate it when off.
• Set U1 to 13.3V and U2 to 12.8V to maintain optimal charge.

Example 4: Protecting Sensitive Equipment

• Prevent sensitive devices from running below damaging voltages.
• Set cut-out voltage above the recommended minimum for your appliance (adjustable in 0.1V steps).

Why Choose This VSR?

This device isn’t just a voltage-sensitive relay; it’s a complete battery and system protection tool. With customizable settings, reliable construction, and the ability to safeguard both shallow and deep cycles, it’s the smarter, safer alternative to standard VSRs.

Invest in your setup today for better performance, longer battery life, and peace of mind!