Sofar Solar Battery 

Sofar Solar battery storage systems are designed to help Australian households store excess solar energy, reduce electricity costs, and improve energy independence. Using long-lasting LiFePO₄ technology and modular expansion, Sofar provides a reliable and cost-effective home battery solution for everyday energy use.

Sofar systems also feature modular expandability, allowing you to gradually increase your storage capacity over time. They meet Clean Energy Council (CEC) standards in Australia and are installed by accredited technicians. With this brand, you get a smart, safe, and cost-effective solution without paying the premium prices of other brands. Installation and setup are handled by the Axial team.

Why Choose Sofar?

Sofar Solar batteries combine practical performance with cost-effective design. They are ideal for homeowners who want reliability, flexibility, and savings without paying extra for a premium brand.

• Uses safe and durable LiFePO₄ battery chemistry
• Modular design for future capacity expansion
• Compatible with hybrid inverter systems
• IP65 rated for indoor or shaded outdoor installation
• Long lifespan with 10-year product and performance warranty
• Strong value compared to other mid-range battery brands
• Smart energy management through the Sofar app

Which Home Size & Usage Pattern Suits Sofar?

Think of this table as a starting point give Axial Electric a call for a free, tailored quote for your home.

Price & Value

Sofar batteries are competitively priced for Australian homes, offering a balance of performance, safety, and modular expandability without the premium cost of some other brands. The final price depends on system size, installation complexity, and inverter requirements. Typical installed prices are:

• 5–6 kWh: $6,500 – $8,000
• 10–12 kWh: $9,500 – $12,000
• 15–20 kWh: $13,500 – $17,500

These prices are indicative only and may vary depending on backup power features, site conditions, and any state incentives. For an accurate quote tailored to your home and energy needs, please contact our team directly.

How Sofar Benefits Your Home

Installing a Sofar battery gives you more control over your solar energy and electricity costs. You can reduce reliance on the grid and increase self-consumption while keeping your home running during outages. Benefits include:

• Lower electricity bills by using stored solar energy during peak hours
• Energy independence and reduced grid reliance
• Backup support for essential circuits in case of outages
• Modular expansion to match future energy needs
• Optimized energy efficiency with DC-coupled hybrid systems

Reach out to Axial Electric for personalised solar solutions. We make it simple—design, rebates, and installation handled for you.

Sofar Battery Models Available in Australia

How Sofar Works

Sofar battery systems are designed to operate as part of an integrated solar ecosystem, working seamlessly with Sofar hybrid inverters to manage generation, storage, and consumption in one coordinated system.

During the day, your solar panels generate electricity. Any excess power that isn’t used immediately in the home is directed into the battery instead of being exported to the grid for a low feed-in tariff. The battery stores that energy and automatically discharges it in the evening, overnight, or during peak tariff periods when grid electricity is more expensive.

This allows you to maximise self-consumption, reduce grid reliance, and gain greater control over how and when your home uses energy.

DC-Coupled Architecture for Higher Efficiency

Sofar BTS battery systems are DC-coupled, meaning the battery connects directly to a compatible Sofar hybrid inverter. This design reduces energy conversion losses compared to AC-coupled systems and improves overall system efficiency.

Because fewer energy conversions are required, more solar energy is retained and used efficiently throughout the home.

Modular High-Voltage Design

The Sofar BTS E5–E20-DS5 series uses high-voltage Lithium Iron Phosphate (LiFePO₄) battery modules operating at approximately 400V. Each module provides:

• 5.12 kWh nominal capacity
• 4.75 kWh usable capacity
• Around 93% depth of discharge
• Maximum output of approximately 2.5 kW per module

Up to four modules can be stacked in a single tower, delivering up to 19 kWh usable storage. Additional stacks can be connected in parallel for larger homes with higher evening demand.

Because each module delivers around 2.5 kW of power, system output scales with the number of modules installed. For example:

• 2 modules → up to 5 kW output
• 4 modules → up to 10 kW output (with compatible inverter)

This makes Sofar suitable for everything from smaller households with moderate night usage to larger families running multiple appliances simultaneously.

Battery Management & Longevity

Sofar includes an integrated battery pack balance management unit. This system actively monitors and balances cells within each module, helping maintain long-term performance and allowing additional modules to be added later without negatively affecting existing ones.

The chemistry used is LiFePO₄, which is known for:

• Higher thermal stability
• Improved safety compared to traditional lithium-ion chemistries
• Long cycle life, typically up to 6,000 cycles under normal residential usage

Backup Functionality

When configured correctly with a compatible Sofar hybrid inverter, the system can provide backup power to essential circuits during grid outages. Switchover time is typically under 10 milliseconds, allowing critical loads like lighting, refrigeration, and selected power outlets to remain operational.

Built for Australian Conditions

Sofarsolar batteries are rated IP65, making them suitable for indoor or protected outdoor installation. Operating temperature ranges from:

• -10°C to 50°C for discharge
• 0°C to 50°C for charging

Like all lithium batteries, output may reduce at extreme high temperatures, so proper installation location and ventilation remain important for optimal long-term performance.

Monitoring & Proactive Maintenance

Sofar batteries are more than just an energy storage system. They provide a smart way to monitor and manage solar production, battery usage, and household energy consumption in real time. With full visibility through the monitoring app, homeowners can reduce electricity costs and maximise the value of their solar investment.

Full Control, Anytime, Anywhere

• Real-time monitoring of solar generation, battery charge level, and home consumption
• Clear visibility of energy imported from and exported to the grid
• Live inverter performance and overall system health status
• Access via mobile app and web portal from anywhere in Australia

Data-Driven Savings

• Daily, weekly, and monthly performance reports with detailed charts
• Analyse usage patterns to better manage peak tariff periods
• Track self-consumption rates and reduce reliance on the grid
• Compare system performance across different time periods

Smart, Hassle-Free Maintenance

• Automatic alerts in case of faults or performance drops
• Notifications for firmware and system updates
• Remote diagnostics and support by your installer or service team
• Historical performance records for preventative maintenance

The app is designed to be simple and easy to use, giving homeowners clear visibility into energy usage, battery performance, and solar production.

Sofar Technical Specifications

Smart Considerations Before Choosing Sofar

Before investing in a Sofar battery, consider:

• Compatibility with hybrid DC-coupled inverters
• Household nighttime consumption patterns
• Future plans for EV charging or increased energy demand
• Space availability and ventilation for battery modules
• Warranty registration and conditions

Correct sizing ensures maximum efficiency, savings, and return on investment.

About Sofar – Emerging Global Energy Brand

Founded in 2013, Sofar Solar is a vertically integrated Chinese company specializing in solar inverters, hybrid systems, and energy storage solutions. Its products comply with CEC standards in Australia and are installed in over 100 countries. With modular LiFePO₄ technology, Sofar is recognized for safety, reliability, and affordability, making it a strong choice for homeowners seeking long-term energy solutions.

Find Your Exact Price

To get a tailored quote for your home:

•  Review your electricity usage and solar generation
• Determine the optimal battery size and number of modules
• Calculate potential savings and backup needs

Contact the Axial Electric team for a personalised consultation and free quote. We design solar and battery systems to fit your home, take care of everything from system planning to rebates, and make installation seamless.

FAQs

1. What warranty does a Sofar Solar battery come with?
Sofar batteries include a 10‑year product and performance warranty.

2. How long can I expect a Sofar battery to last?
Typical lifespan is 10–15 years depending on usage and conditions.

3. How much power output do Sofar batteries provide?
Each module delivers around 2.5 kW, scalable up to 10 kW with multiple modules.

4. Can a Sofar battery provide backup power during outages?
Yes, it can power essential circuits when paired with a compatible hybrid inverter.

5. How much space does a Sofar battery require?
They are floor‑mounted and need a well‑ventilated indoor or protected outdoor area.

6. Are Sofar batteries suitable for Australian weather conditions?
Yes, they operate between ‑10 °C and +50 °C and are IP65 rated for protection.

7. Do Sofar batteries need specific inverters?
Yes, they must be paired with compatible Sofar hybrid inverters.

8. How efficient are Sofar battery systems?
They offer over 90 % round‑trip efficiency in real-world conditions.

9. Can I expand my Sofar battery later?
Yes, modular design allows adding more modules to increase storage.

10. Are Sofar batteries a good value for money?
Yes, they provide reliable performance at competitive mid-range prices.