Table of Contents
- 1. Is Solax the Right Home Battery Option for Budget Focused Solar Owners?
- 2. Quick Pros & Cons
- 3. Performance Matrix: How Solax Batteries Compare
- 4. Who Should Buy a Solax Battery?
- 5. About Solax
- 6. Solax Battery Model Range (2025)
- 7. Key Technical Specifications
- 8. Expanded Pros & Cons
- 9. Support & Warranty
- 10. Ask Us Anything
- 11. Downloadable Documents
- 12. Final Verdict: Should You Buy a Solax Battery in 2025?
Is Solax the Right Home Battery Option for Budget Focused Solar Owners?
Solax is best known in Australia for its inverters, but its home battery range has grown steadily in recent years. From compact 5.1 kWh systems to stackable setups exceeding 45 kWh, Solax offers a wide selection of CEC-approved batteries aimed at households seeking modular, cost-effective storage.
These batteries are typically paired with Solax hybrid inverters, making them a natural choice for homeowners already within the Solax ecosystem. But how do they compare to more established battery brands like BYD or Sungrow and should you trust them to power your home?
In this review, we’ll explore the full range of Solax batteries available in Australia, evaluate their performance, warranty, value for money and compatibility, and explain where they stand in 2025’s growing home battery market.
Quick Pros & Cons
Pros
- Wide range of CEC-approved models from 5.1 kWh to 47.9 kWh usable
- Modular and scalable design, suitable for both single and three-phase homes
- Compatible with Solax hybrid inverters
- Competitive pricing for most capacity sizes
- 10-year product warranty using LiFePO₄ battery chemistry
Cons
- Limited compatibility with non-Solax inverter brands
- Mixed customer feedback on app performance and firmware reliability
- Historical battery recall has raised some concerns in the market
- Not currently integrated with major Virtual Power Plant (VPP) programs
- Support quality and service times can vary depending on installer
Performance Matrix: How Solax Batteries Compare
Technical Performance
Summary:
Solax batteries deliver solid flexibility and capacity options, but fall behind in peak performance and third-party compatibility.
User Experience
Summary:
Easy to configure with Solax inverters, but app usability and customer sentiment vary depending on model and installer.
Trust & Support
Summary:
Strong on price and local recognition, but weaker when it comes to long-term support and battery-specific reputation.
Overall Score
68%
68%
Solax batteries fall below our recommended threshold of 70%. They may still suit homeowners looking for a budget-friendly option that integrates easily with a Solax inverter setup.
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Who Should Buy a Solax Battery?
Solax batteries are best suited for homeowners who already have or plan to install a Solax hybrid inverter. If you’re seeking a modular battery system with a wide range of sizes and a relatively low upfront cost, Solax can be a practical choice.
However, this system is not ideal for those wanting:
- Compatibility with other inverter brands
- Participation in Virtual Power Plants (VPPs)
- A polished mobile app or advanced smart energy features
Solax may also appeal to budget-conscious households looking for basic blackout support or night-time solar usage, without needing top-tier performance or deep ecosystem integration.
About Solax
Solax Power is a Chinese energy technology company best known for its residential and commercial solar inverters. Founded in Hangzhou, Solax has become one of the more recognised inverter brands in Australia and has expanded into battery storage over the last several years.
Their battery systems are designed to work seamlessly with Solax hybrid inverters, offering a vertically integrated energy solution. While the company has made progress in expanding its product portfolio, its battery division remains less established compared to competitors like BYD, Sungrow or Tesla.
Solax batteries are manufactured using lithium iron phosphate (LiFePO₄) chemistry and are supported by a 10-year warranty. All listed models are approved by the Clean Energy Council for use in Australian homes and most are rated for outdoor installation.
Solax Battery Model Range (2025)
Solax currently offers three main battery product lines approved for use in Australia. All models use lithium iron phosphate (LiFePO₄) chemistry and are modular in design, allowing homeowners to scale capacity as needed.
1. Triple Power T-BAT H V2 Series
- Usable capacities: 5.1 kWh, 10.4 kWh, 15.5 kWh, 20.7 kWh
- Modular master/slave setup
- Designed for use with Solax hybrid inverters (X1 and X3 series)
- IP65 rated for outdoor installation
2. T-BAT SYS HV-S3.6 (HS Series)
- Usable capacities: 6.5 kWh to 43.1 kWh
- Stackable high-voltage modules (typically 3.3–3.6 kWh each)
- Suits large homes or small commercial applications
- Requires compatible battery management system
3. T-BAT HS50E Series (Newer High-Voltage Range)
- Usable capacities: 4.6 kWh to 27.6 kWh
- Updated design with simplified wiring and improved thermal protection
- Compact footprint for wall or floor mounting
- Designed for higher safety and easier installation
Each of these series is CEC-approved and listed for use in Australia through to at least 2026 or 2027.
Key Technical Specifications
| Specification | Details |
|---|---|
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Usable Capacity Range | 4.6 kWh to 47.9 kWh (model dependent) |
| Depth of Discharge (DOD) | 90% |
| Cycle Life | >6000 cycles |
| Round-Trip Efficiency | Up to 95% |
| Peak Power Output | Up to 16.1 kW (on larger stacked models) |
| Scalability | Modular stacking with Master/Slave or parallel box |
| Ingress Protection | IP65 (outdoor rated) |
| Operating Temperature | -10°C to 55°C (varies slightly by model) |
| Communication Interfaces | RS485, CAN |
| Warranty | 10 years (or energy throughput, whichever comes first) |
| Inverter Compatibility | Solax hybrid inverters (X1, X3 series) |
These specifications may vary slightly depending on the model and system size. Always consult the product datasheet and installer for final system design.
Expanded Pros & Cons
What We Like
- Modular, scalable design
Solax batteries can be expanded from small single-module setups to large 40+ kWh stacks, making them suitable for a wide range of homes and energy usage profiles.
- CEC-approved and outdoor rated
All listed models are approved for installation under Australian standards and include IP65 ratings for outdoor environments.
- Compatible with Solax inverters
Full compatibility with Solax’s own X1 and X3 hybrid inverters simplifies integration and reduces setup complexity.
- LiFePO₄ chemistry and strong cycle life
The use of lithium iron phosphate ensures thermal stability, non-toxicity, and more than 6000 charge-discharge cycles.
- Budget-friendly options
Compared to premium batteries like Tesla or Sonnen, Solax provides a more affordable entry point for homeowners wanting energy storage.
What Concerns Us
- Limited third-party inverter support
Solax batteries are primarily intended for use with Solax inverters, making cross-brand system designs more difficult.
- No current VPP participation
Unlike some competitors, Solax batteries are not part of major Virtual Power Plant programs in Australia as of 2025.
- Mixed user feedback on app and software
Online forums and customer reviews mention occasional firmware issues, delayed updates, and confusing battery app interfaces.
- Past product recall
Solax batteries were previously involved in a national recall, raising some concerns about long-term reliability and safety oversight.
- Support varies by installer
Solax has limited direct support in Australia. Service quality often depends on the installer’s responsiveness and experience with the product.
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Support & Warranty
Solax batteries come with a 10-year product warranty, which aligns with the standard offering from most major battery brands in Australia. The warranty typically covers defects in materials or workmanship, as well as performance guarantees based on energy throughput or remaining capacity over time.
Warranty Coverage
- 10 years from date of installation
- Minimum of 70% retained capacity at end of warranty period (model dependent)
- Applies to residential use under normal operating conditions
However, Solax’s local support infrastructure is limited. Warranty claims and technical support are usually handled through the original installer or distributor. This means your post-sale experience can vary significantly depending on who you purchased the system from.
Solax provides basic warranty documentation and datasheets online, but response times and service quality have been inconsistent across customer reports.
We Have Great Answers
Ask Us Anything
Solax battery pricing in Australia typically starts around $4,000 to $5,000 for smaller 5–6 kWh systems, and can exceed $10,000 for larger setups over 15 kWh. Installation and inverter pairing will impact the final cost.
This often occurs when solar production is insufficient or when settings allow grid charging during off-peak hours. You can adjust this behaviour in the Solax battery settings or app.
You can enable grid charging via the Solax monitoring platform or app. Settings may vary depending on inverter model and firmware version.
Most models include a physical reset button near the isolator switch or on the master battery module. Always refer to the installation manual for proper reset instructions.
Solax batteries are rated for more than 6000 cycles, which generally translates to 10–15 years of typical residential use, depending on charge depth and environmental conditions.
Solax batteries offer good modularity and pricing for those using Solax inverters. However, they rank lower than premium brands in terms of performance, compatibility, and support.
Lifespan is expected to be 10 years or more, depending on how frequently the battery is cycled and how well it is maintained.
Users have reported firmware bugs, battery not charging fully, and occasional fault codes. These can often be resolved via firmware updates or installer diagnostics.
There is limited integration with third-party platforms. Solax does not officially support Home Assistant, but some advanced users have attempted custom integrations.
Final Verdict: Should You Buy a Solax Battery in 2025?
Solax batteries offer one of the most affordable and flexible storage options available in Australia. With a broad range of capacities, outdoor-ready designs, and native compatibility with Solax inverters, they suit homeowners who are focused on cost and already using the Solax ecosystem.
However, limited third-party compatibility, basic app functionality, and a track record that includes product recalls mean these batteries fall short of our recommendation threshold. While not without merit, they are best suited to budget-focused installations where cost is the primary driver not premium performance or advanced energy management.
Overall Score: 69%
Solax may be suitable for price-sensitive households using Solax inverters, but we do not consider it a recommended system for most Australian homes.
