CAOS POWER 50A Voltage Sensitive Relay Kit (VSR)

$29.89
Shipping & Delivery
Warranty & Claims

The CAOS POWER 50A Voltage Sensitive Relay Kit (VSR) is designed to seamlessly integrate with the CAOS POWER Battery Box, allowing you to set up a dual battery system in your vehicle. This fully automatic isolator switch ensures that your auxiliary battery charges safely while your vehicle is running and prevents your starter battery from draining when the engine is off.

How It Works:

  • When the vehicle is running and the voltage reaches 13.2V, the VSR automatically connects the starter battery to the auxiliary battery, allowing it to charge.
  • When the vehicle is switched off and voltage drops below 12.8V, the VSR isolates the auxiliary battery, preventing it from draining the starter battery.

Features:

  • Easy Retrofit – Specifically designed to install into the CAOS POWER Battery Box.
  • Fully Automatic Operation – No manual switching required.
  • Built-In Surge Protection – Helps protect your electrical system.
  • High-Quality Materials – Built for durability and reliability in tough conditions.

VSR Kit Installation Notes:

  • The VSR Kit Installation Instructions describe disconnecting one of the incoming positive wires from one of the four Anderson plugs to connect to the VSR.
  • The positive wires from two of the four Anderson plugs are crimped together into one eye terminal.
  • It is not necessary to split one of the positive wires off from the eye terminal—the double positive wires can be connected to the VSR.
  • When using this option, those two Anderson plugs can only be used for 12V input or output when the VSR is active (voltage above 13.2V).
  • The other two Anderson plugs (not connected through the VSR) can still be used to power 12V devices when the main switch is on, regardless of the VSR state.
SKU:
300050012
Barcode #:
9354486006591
Brand:
CAOS POWER
Shipping Weight:
0.16 kg

Customer Reviews

Based on 10 reviews
90%
(9)
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V
Viktor
Decent

Using as extra protection from a charger and the benefits of using this is a much faster disconnect.

D
Daniel M
Mini VSR works

Best price was from Caos, cheers. Got two mini VSR to wire my own dual battery setup in each vehicle. Not as small as I thought but fitted nicely and a bit more discrete than the standard battery isolators. 2007 MX5 ☺️ and 1995 Hilux ☺️. You will also need a 50amp maxi fuse inline between the battery and the VSR.

w
warren schmid
VSR

Great bit of kit love the smaller size of this unit

H
Hamish
Awsome VSR

Easy to install in the battery box , works good as

D
Declan Fechney
Great product

Looks great and very tough. Fits perfectly for my set up

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CAOS POWER

CAOS POWER 50A Voltage Sensitive Relay Kit (VSR)

$29.89

The CAOS POWER 50A Voltage Sensitive Relay Kit (VSR) is designed to seamlessly integrate with the CAOS POWER Battery Box, allowing you to set up a dual battery system in your vehicle. This fully automatic isolator switch ensures that your auxiliary battery charges safely while your vehicle is running and prevents your starter battery from draining when the engine is off.

How It Works:

Features:

VSR Kit Installation Notes:

View product