KickAss 12V Smart Battery Guard (VSR & LVD in One)
Disconnect any non-essential loads from the battery, or set as a Voltage Sensitive Relay (VSR) and connect the main battery to the auxiliary battery. Includes fully customizable Bluetooth app.
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
KickAss 12V Battery Guard
The KickAss Battery Guard can disconnect any non-essential loads from the battery (Low Voltage Disconnect). Or it can be set as a Voltage Sensitive Relay (VSR) and connect the main battery to the auxiliary battery. Fully customisable Bluetooth app, manual override switch, LED diagnostics mode.
Set As Low Voltage Disconnect or Voltage Sensitive Relay
Have the flexibility to set the battery guard to suit your needs. Set the Battery Guard as a Low Voltage Disconnect (LVD) or a Voltage Sensitive Relay (VSR). If upgrading your vehicle and no longer need a VSR, simply change the functionality via the app.
Battery Guard – Low Voltage Disconnect
Protect your battery from accidental over-discharge. Simply install the device onto your auxiliary battery, set the voltage, and once it reaches the threshold it will disconnect all loads—preventing battery damage.
Battery Guard – Voltage Sensitive Relay
Allows both your main and auxiliary batteries to charge at the same time from your alternator. Ideal for vehicles without smart alternators.
Fully Customisable Settings Within Bluetooth App
Control and configure all battery guard preferences via the Bluetooth app. Easily set the unit to operate as a VSR or LVD.
Set Cut-In/Out Voltages & Timeout
Manual override via app—great for emergencies. Set the delay before the guard disconnects below cut-out voltage. Ideal for high-load applications like inverters, where voltage may momentarily dip.
Manual Override Switch
Get full manual control via a dashboard-mounted override switch. Perfect for jump-starting your main battery from your auxiliary battery.
Please check your battery specifications before attempting to jump-start.
LED Diagnostics
Get status updates via LED pulses:
- 1 short green pulse every 4 seconds – Battery voltage is above cut-in; Battery Guard is engaged
- 1 short blue pulse every 4 seconds – Voltage is below cut-out; waiting for timeout before disconnect
- 1 short red pulse every 4 seconds – Voltage is below cut-out; Battery Guard is disengaged
100A Continuous Max Discharge
Supports up to 100A continuous discharge (300A peak). Suitable for all common 12V setups. Maximum inverter size: 1200W.
Easy Installation
Mounts directly to the battery terminal—no extra cabling or mounting hardware required.
Safe for High Temperature Use
Thoroughly tested for high-temperature environments.
Note: If used in a KickAss Battery Box as an LVD, the override switch must be used to resume charging after disconnect.
Specifications
Additional specifications can be found in the detailed description of the product(s) below.
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.

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Frequently Asked Questions
How does the KickAss 12V Smart Battery Guard protect my vehicle’s batteries?
This dual protection ensures your starter battery won’t be drained by auxiliary loads, while your auxiliary battery is safeguarded from deep discharge, extending battery life and reliability on all your adventures.
Can I connect the KickAss Smart Battery Guard to my smartphone for monitoring and control?
This lets you easily customise voltage cut-in/out levels, check battery health in real-time, and manually override settings remotely, giving you full control and peace of mind from your phone.
How do I install the KickAss Smart Battery Guard in my dual battery system?
The straightforward clamp-on design means you can install it yourself or with an auto-electrician’s help, ensuring a secure fit and quick setup to protect your batteries without hassle.
What safety features does the KickAss Smart Battery Guard include to prevent battery damage?
These features protect both starter and auxiliary batteries from damage due to over-discharge or improper jump-starting, while allowing you to safely override settings when needed.
Is the KickAss Smart Battery Guard suitable for outdoor or wet environments?
However, its compact 0.34kg unit and robust design make it ideal for secure installation inside engine bays or protected compartments, ensuring reliable operation in typical vehicle environments.
What are the electrical specifications and limits of the KickAss Smart Battery Guard?
These specs mean it can handle typical vehicle starting loads and continuous auxiliary loads efficiently, providing dependable battery management without draining your system.
How does the remote override switch work and what benefits does it offer?
This feature is perfect for jump-starting from the auxiliary battery or managing power flow conveniently without accessing the battery bay, enhancing safety and ease of use.
Can I configure the voltage thresholds on the KickAss Smart Battery Guard to suit different battery types?
This flexibility allows you to tailor battery protection to your specific battery chemistry and usage, maximising battery performance and lifespan on your off-grid adventures.