KickAss Dual Sensing Voltage Sensitive Relay (VSR) + Inline Fuse Bundle

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)

2.5m of 8B&S Twin Core 50 Amp Anderson to Anderson Extension Lead

Minimise voltage drop and extend the range of your Anderson style plug by 2.5m with our super heavy duty extension lead.

Perfect for use with portable 12V dual battery systems and solar panels.

Note: B&S is an industry term that identifies cable size and is not the conductor's cross-sectional area or diameter.

KickAss MAXI Fuse Anderson Cable

The KickAss MAXI Fuse Anderson Cable is the perfect solution for connecting a battery to virtually any device. It offers superior circuit protection through an inline 80A MAXI Fuse, safeguarding against short circuits and potential system damage.

With a purpose-designed length, this cable easily reaches vehicle starting batteries and integrates seamlessly with dual battery setups. The built-in weatherproof MAXI Fuse holder simplifies installation, eliminating the need for mounting traditional fuse holders or circuit breakers.

One end of the cable features a 50 Amp Anderson style connector for effortless connection to battery boxes, solar panels, or other compatible devices. The other end includes high-quality 8mm ring terminals for secure battery attachment. A spare 80A MAXI Fuse is included for added convenience.

Features:

• In-line weatherproof MAXI Fuse holder with 80A MAXI Fuse
• Length: 750mm
• Cable type: Twin 8B&S (7.71mm²) Red/Black Sheathed
• 1 x 80A MAXI Fuse pre-installed in holder
• 1 x 80A MAXI Fuse spare
• 8mm ring terminals

See links below for replacement fuses:

Spare 50A MAXI Fuse - Red