Voltage-Sensitive Relay Kit (can be used with Hardkorr Battery Box
4.7 (399) · $ 3.50 · In stock
Using a Hardkorr battery box with voltage-sensitive relay (VSR) is the simplest way to create a dual battery setup in your vehicle. The VSR acts as an isolator, allowing the auxiliary battery (inside the box) to charge directly from the crank battery while the car is running. Note: Not suitable for Lithium Batteries.
Hard Korr Voltage Sensitive Relay Kit for Heavy Duty Battery Box
Korr Voltage-Sensitive Relay Kit for Hardkorr Battery Box
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Using a battery box with voltage-sensitive relay (VSR) is the simplest way to create a dual battery setup in your vehicle. The VSR acts as an
Voltage-Sensitive Relay Kit (for Battery Box)
What is a VSR Voltage Sensitive Relay and How to install VSR? VSR
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