KickAss Quick Connect Dual Sensing VSR
Save more when you buy this as part of a KickAss kit.
View bundle deals →KickAss Voltage Sensitive Relays allow two batteries to be charged at the same time. Comes with Anderson style connectors for easy installation, and override switch for battery equalisation.
Pickup available at Acacia Ridge Store
Usually ready in 1 hour
1 Year Warranty
This product is covered by a 1 Year Limited Warranty.
Description
The KICKASS team have done it again! A new design in Voltage Sensitive Relays unlike anything currently on the market!
This product is a unique dual-sensing VSR for charging an auxiliary battery system while ensuring that your vehicle's starter battery is isolated when there is no charge from the alternator. Quick-connect Anderson-style plugs allow for easy installation—no hard wiring needed. Side-moulded mounting points offer flexible installation, whether under the bonnet or elsewhere in your 4WD, caravan, or camper. The unit is also water-resistant and suitable for marine applications.
The dual-sensing function intelligently detects the charge of both the auxiliary and cranking batteries, allowing current to flow back when the start battery is low or when an external charger (such as AC or solar) is connected to the auxiliary battery.
The VSR also features an override switch—ideal for emergencies when your cranking battery is discharged and you need to transfer charge from your auxiliary battery.
The Basics on How It Works
When the vehicle's engine is running, the alternator charges the start battery. Once the start battery reaches 13.2V, the VSR connects both batteries, allowing them to charge simultaneously.
When the engine is off and charging stops, the start battery voltage drops. Once it falls below 12.8V, the VSR disconnects the batteries, preventing the auxiliary battery from draining the starter battery.
Key Features:
- Easy connection via input and output Anderson-style plugs
- Charge your auxiliary battery without discharging the start battery
- Protects electronics on the auxiliary circuit from engine start-up spikes
- Fully automatic operation
- Override switch (engages relay regardless of sense voltage)
- Indication light wire (active when VSR is engaged)
- Override wire (activated by positive ignition feed)
- Dual sensing (monitors both start and auxiliary battery voltage)
Specifications
| Current Rating | 140A Max for 5 seconds, 50A Continuous |
| Voltage System | 12V DC |
| Dual Sense Cut In Voltage (Connect Voltage) |
13.20V with 15 second delay |
| Dual Sense Cut Out Voltage (Disconnect Voltage) |
12.80V with 15 second delay |
| LED Operation | On - Battery is Connected Off - Battery is Disconnected |
| Operating Temperature | 0°C - 50°C |
| Net Weight | 0.35kg |
| Housing Dimensions | 110mm x 102mm x 50mm |
| Mounting Hole to Mounting Hole Diameter | L - 49mm / W - 95mm |
| Warranty | 1 Year |
User Manual and Support
KickAss has warehouses located on both the East and West Coast of Australia. Express orders are dispatched same business day if ordered before 12pm AEST. Standard orders are dispatched within 2-3 business days. Deliveries are made during business hours, Monday to Friday.
At KickAss, we take full control of our product journey - from concept to creation - by designing, engineering, and manufacturing our own batteries and 12V accessories in our wholly owned facilities located in Australia, China, and the USA. This end-to-end approach allows us to maintain strict quality standards, drive innovation, and deliver unbeatable value. By owning our production facilities, we ensure every product that carries the KickAss name is built tough, tested rigorously, and ready for off-grid adventure.
Change your mind? No worries, our quick & easy online or in-store returns process has you covered. Learn more.
BUNDLE & SAVE!
Quick Connect Dual Sensing VSR, 2 x Automotive Inline Maxi Fuse Holder with, and 8B&S Extension Lead with Anderson Style Connectors - 2.5m
Plug & Play Dual Battery Wiring Kit - 6m, Quick Connect Dual Sensing VSR, and Automotive Inline Maxi Fuse Holder with
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