Introducing the 304-CAN 304Ah LiFePO4: Now "Victron-Ready" for the Ultimate Power Ecosystem

Still choosing between massive capacity and limited space? Stop compromising. From our workshop in Welshpool, Western Australia, we’ve taken our most popular powerhouse and given it a brain transplant.

The new 304-CAN doesn't just store power; it communicates. With integrated CAN/RS485 protocols, this battery now plugs directly into your Victron GX device (Cerbo, Ekrano, or Venus), giving you a professional-grade, closed-loop energy system.

Massive Power, Miniature Footprint

The 304-CAN redefines power density. With a 300A continuous discharge rating, it’s built to feed 3500W inverters without breaking a sweat. From the Outback to the coast, run your entire setup:

• Induction Cooktops & Air Fryers: Chef-grade meals anywhere.

• Coffee Machines & Kettles: Your morning ritual, uncompromised.

• Air Conditioning: True off-grid climate control.

• Starlink Mini: High-speed internet across the Nullarbor.

• Heavy Duty Tools: Run air compressors or chargers with ease.

The "Victron-Ready" Advantage

Why settle for estimated battery percentages? The 304-CAN features dedicated CANbus and RS485 ports designed for seamless integration with the Victron ecosystem.

• Full System Visibility: View your real-time State of Charge (SOC), cell voltages, and battery health directly on your Victron GX Touch screen or the VRM Portal.

• Closed-Loop Charging: Your battery talks to your MultiPlus or MPPT, ensuring the most accurate and safe charging profile possible.

• Smart Automation: Trigger alarms or generator starts based on precise digital data, not just voltage sag.

Beyond Compact: The 120Ah Footprint

Prepare to be impressed. We’ve squeezed 304Ah into a frame measuring just 345mm (L) x 190mm (W) x 272mm (H).

At only 28kg, it is roughly the same size as a traditional 120Ah AGM battery but delivers more than double the usable energy. It’s the ultimate space-saver for canopy builds, caravans, and tight marine compartments.

Australian Engineered, Top-Tier Internals

We don’t just "box" batteries; we engineer them for the Australian heat.

• Grade A+ EVE Cells: We utilize genuine EVE LF304 prismatic cells, factory-matched for internal resistance and capacity. These cells are industry leaders, rated for 3,500 to 6,000 cycles, meaning they can provide over a decade of reliable service even with heavy daily use. Their high thermal stability is essential for maintaining performance in high-ambient-temperature environments..
• Inbuilt Daly Blue Smart Active Balance 300A BMS: Our high-current 300A continuous-rated BMS acts as the battery's brain. It features a high-speed communication board that enables a "closed-loop" handshake with Victron GX devices. This allows the battery to actively dictate charging parameters to your inverter/MPPT, preventing over-voltage and maximizing the lifespan of the cells.
• Separate Heltech 5A Active Balancer: Most batteries rely on tiny 30–50mA passive balancing that only works at the very top of a charge. We include a dedicated 5A Heltec Active Balancer that physically transfers energy from the highest cells to the lowest cells 24/7. This ensures your 304Ah bank remains perfectly balanced even under massive 300A discharge loads.
• Dual-Path Monitoring: Get total visibility. Use the Bluetooth App for a deep dive into individual cell voltages and BMS temperature sensors while you’re in the vehicle. For the "big picture," the Victron GX integration pushes your battery data to the VRM Portal, allowing you to monitor your system health remotely from anywhere in the world.
  • Apple App Store (iOS): SmartBMS Apple Store
  • Google Play Store (Android): SmartBMS Google Play Store
• 5-Year Warranty: Forget the stress of "return to manufacturer" shipping. Our 5-year comprehensive warranty is backed right here in Welshpool. If you have a technical query or need support, you are dealing directly with the technicians who understand the specific requirements of Australian off-grid setups.
• If using a Victron SmartShunt or BMV-712 Battery Monitor settings can be found here

Why the 304-CAN is the Professional's Choice

By combining the massive 304Ah capacity with active balancing and digital communication, we've eliminated the two biggest killers of lithium batteries: cell drift and "dumb" charging. Whether you're running a commercial vessel or a weekend canopy setup, the 304-CAN offers the intelligence of a high-end rack-mount system in a portable, ruggedized form factor.

*Our Generation 2 (G2) 304Ah battery has moved to using the same BMS that all of our other batteries use, so is not compatible with generation 1 batteries in terms of adding battereis in series or parallel.

**There are many calims about high cycles and while they are true to some extent the are misleading. 3500 cycle life @ 100% Depth Of Discharge at 100% capacity. This equates to draining the battery 100% every day 3500 times, (around 10 years) youre left with around 80% capacity remaining after which will do another few thousand cycles. So while a battery will do 6000 cycles it wont do it at 100% capacity after its initial cycle life.