BYD vs Tesla vs Pylontech. Which battery wins?
An honest, side-by-side comparison of Australia's three most popular home batteries. Specs, real-world performance, warranty and which one suits your home best.
Reviewed by the Mission Green Energy Team · Updated July 2026
How do BYD, Tesla and
Pylontech compare?
BYD, Tesla and Pylontech are all Tier 1 battery manufacturers with proven track records in Australia. Each has distinct advantages depending on your home, budget and energy goals.
The short answer: there is no single best battery of the three — the right choice depends on your priorities, budget and how you plan to use your storage. Choose BYD if you want precise sizing with modular expansion, prefer to select your own inverter brand, or plan to start small and grow your capacity over time. Choose Tesla Powerwall if you want the most seamless backup experience, an all-in-one system with built-in inverter, or you value the Tesla app and ecosystem integration. Choose Pylontech if you want to maximise storage per dollar and are focused primarily on self-consumption savings. All three are independently certified systems we install; the spec, capacity, warranty and price comparisons below show exactly where each one wins — and where it doesn't.
The world's largest battery manufacturer. Modular LFP chemistry with excellent scalability and a strong safety record. Great value for larger storage needs.
The world's most recognised home battery. Integrated inverter, seamless backup, Storm Watch and the Tesla app ecosystem. Premium experience.
A cost-effective modular battery with strong installer support. LFP chemistry, stackable design and a competitive price point for budget-conscious homes.
How do the specs
compare, head to head?
Capacity is the clearest split: BYD HVS/HVM spans 5.1–22.1 kWh and the Pylontech Force H2 7.1–21.3 kWh in modular steps, while the Tesla Powerwall 3 is a fixed 13.5 kWh. Continuous power sits at roughly 5 kW across all three.
| Feature | BYD HVS/HVM | Tesla Powerwall 3 | Pylontech Force H2 |
|---|---|---|---|
| Usable Capacity | 5.1 – 22.1 kWh | 13.5 kWh | 7.1 – 21.3 kWh |
| Chemistry | LFP (Lithium Iron Phosphate) | LFP (Lithium Iron Phosphate) | LFP (Lithium Iron Phosphate) |
| Continuous Power | Up to 5.1 kW | 5 kW (11.5 kW peak) | Up to 5 kW |
| Round-trip Efficiency | > 95% | 97.5% | > 95% |
| Warranty | 10 years | 10 years | 10 years |
| Cycle Life | 6,000+ cycles | Not specified | 8,000+ cycles (95% DoD) |
| Built-in Inverter | No (requires hybrid inverter) | Yes | No (requires hybrid inverter) |
| Modular / Stackable | Yes (2.56 kWh modules) | Yes (up to 4 units) | Yes (3.55 kWh modules) |
| Backup Capable | Yes (with compatible inverter) | Yes (built-in gateway) | Yes (with compatible inverter) |
| App Monitoring | Via inverter app | Tesla App | Via inverter app |
| VPP Compatible | Yes | Yes | Yes |
How do the capacity
ranges compare?
BYD and Pylontech are modular systems that span a range of usable capacities, while the Tesla Powerwall 3 is a fixed 13.5 kWh per unit.
BYD HVS & HVM
in detail.
BYD is the world's largest battery manufacturer, and their HVS and HVM series are among the most popular home batteries installed in Australia.
Modular Design
Start with as little as 5.1 kWh and expand in 2.56 kWh increments up to 22.1 kWh. This flexibility means you can size your battery precisely to your needs and add capacity later.
LFP Safety
Lithium Iron Phosphate chemistry is inherently safer and more thermally stable than NMC alternatives. BYD's Blade Battery technology further enhances safety with its cell-to-pack design.
Inverter Flexibility
BYD batteries are compatible with a wide range of hybrid inverters including Fronius, GoodWe and SMA. This gives you more choice in system design and future upgrades.
Best suited for: Homeowners who want a flexible, scalable battery system with the ability to choose their preferred inverter brand. Ideal for larger homes or households planning to expand their storage over time.
Tesla Powerwall 3
in detail.
The Powerwall 3 is Tesla's latest home battery, featuring an integrated solar inverter and the most seamless backup experience on the market.
All-in-One Design
Powerwall 3 includes a built-in solar inverter, eliminating the need for a separate inverter. Fewer components means a cleaner installation and simpler system architecture.
Storm Watch
Powerwall monitors weather forecasts and automatically charges to 100% before severe storms arrive. This proactive backup feature is unique to Tesla.
Tesla Ecosystem
The Tesla app provides real-time monitoring of solar production, battery state, home consumption and grid usage. Integration with Tesla vehicles and energy products creates a unified experience.
Best suited for: Homeowners who value a premium, integrated experience with best-in-class backup power. Particularly appealing if you already own a Tesla vehicle or prefer an all-in-one system with minimal components.
Pylontech Force H2
in detail.
Pylontech is one of the world's largest energy storage manufacturers. Their Force H2 series offers reliable, modular storage at a competitive price point.
Budget-Friendly
Pylontech typically offers the lowest cost per kilowatt-hour of usable storage among the three brands. For homeowners focused on maximising storage capacity per dollar, Pylontech is a strong contender.
Proven Reliability
With over 1 GWh of residential installations globally, Pylontech has a well-established track record. Their LFP cells are rated for over 8,000 cycles at 95% depth of discharge, translating to many years of reliable service.
Stackable Modules
The Force H2 uses 3.55 kWh modules that stack to create systems from 7.1 kWh up to 21.3 kWh. Add modules as your energy needs grow without replacing your existing system.
Best suited for: Budget-conscious homeowners who want reliable storage without paying a premium for brand recognition. A practical choice for homes focused on self-consumption and reducing grid reliance.
Which battery
suits you?
There is no single best battery for every home. The right choice depends on your priorities, budget and how you plan to use your energy storage system.
Choose BYD
You want precise sizing with modular expansion, prefer to select your own inverter brand, or plan to start small and grow your storage capacity over time.
Choose Tesla
You want the most seamless backup experience, prefer an all-in-one system with built-in inverter, or value the Tesla app and ecosystem integration.
Choose Pylontech
You want to maximise storage per dollar, are focused primarily on self-consumption savings, or prefer a no-frills approach to energy storage.
So which battery is right for you?
There's no single winner here — the right pick depends on your home, your budget and what you want the battery to do. Here's how the three tend to sort out.
All three of these are lithium-iron-phosphate (LFP) systems with 10-year warranties, and any of them can be a sound choice when it's sized and installed properly. The honest answer to "which is best" is that it depends on your priorities. Here's how we usually frame it.
- Leaning toward whole-home backup and a simpler install? The Tesla Powerwall 3 has a built-in solar inverter and a high continuous power output (around 11 kW in Australia), so it can run heavy loads and back up more of the home from a single, self-contained unit. If backup performance and fewer separate components matter most to you, it's worth a close look.
- Want to start smaller and expand later, or need an unusual size? The BYD Battery-Box Premium (HVS and HVM) stacks in modules, giving a wide range of usable capacities and room to add more down the track. It pairs with a separate compatible hybrid inverter, which gives you flexibility to match it to a specific inverter setup.
- Working to a tighter budget or already have a compatible hybrid inverter? The Pylontech Force H2 is a modular, DC-coupled battery (roughly 3.55 kWh per module) that works with many third-party inverter brands. Because it's battery-only, it can be a cost-effective path — especially if your inverter is already on its compatibility list.
- Focused on long-term capacity retention? All three back a 10-year term, but the guaranteed end-of-warranty capacity figures and the conditions attached to them differ from brand to brand. Don't rely on a headline number — read the actual warranty document for each, and check the capacity-retention percentage and any throughput or cycle limits before you decide.
Real-world value comes down to your usage pattern, roof, existing inverter, backup needs and installed price — not the spec sheet alone. Prices move and depend on your site, so we don't quote a headline figure here. A quick, free assessment is the honest way to see which of these actually suits your home, and we'll tell you if waiting or a smaller system makes more sense.
BYD vs Tesla vs Pylontech
FAQ.
There is no single best home battery of the three. All are lithium iron phosphate (LFP) systems with 10-year warranties, and any of them can be a sound choice when it is sized and installed properly, so the right pick depends on your priorities. The Tesla Powerwall 3 suits whole-home backup and a simpler install; the BYD Battery-Box Premium suits homeowners who want to start smaller and expand or need an unusual size; and the Pylontech Force H2 suits tighter budgets or homes that already have a compatible hybrid inverter. Real-world value comes down to your usage pattern, roof, existing inverter, backup needs and installed price, not the spec sheet alone. A free Mission Green assessment is the honest way to see which one actually fits your home.
The Tesla Powerwall 3 is worth a close look if whole-home backup and a simple installation matter most to you. It has a built-in solar inverter and a high continuous power output of around 11 kW in Australia, so it can run heavy loads and back up more of the home from a single, self-contained unit. It also adds Storm Watch, which charges the battery ahead of forecast severe weather, plus the Tesla app for real-time monitoring of solar, battery and home usage. It is particularly appealing if you want a premium, integrated experience with minimal separate components, or already own a Tesla vehicle.
The BYD Battery-Box Premium (HVS and HVM) is a strong choice if you want to start smaller and expand later, or need a specific size. It stacks in 2.56 kWh modules for usable capacities from about 5.1 kWh up to 22.1 kWh, so you can size it precisely and add capacity down the track. It pairs with a separate compatible hybrid inverter, such as Fronius, GoodWe or SMA, which gives you flexibility to match it to a particular system design. It suits larger homes or households planning to grow their storage over time.
The Pylontech Force H2 is a cost-effective option for budget-conscious homes. It is a modular, DC-coupled, battery-only system that uses roughly 3.55 kWh modules stacking from about 7.1 kWh up to 21.3 kWh, and it works with many third-party hybrid inverter brands. Because it is battery-only, it can be a lower-cost path, especially if your existing inverter is already on its compatibility list. It typically offers a low cost per usable kilowatt-hour, which makes it practical for homes focused on self-consumption and reducing grid reliance.
All three carry a 10-year warranty and use LFP chemistry, but they are not identical on paper. The guaranteed end-of-warranty capacity-retention figures, and the conditions attached to them such as any throughput or cycle limits, differ from brand to brand. Rather than relying on a single headline number, read the actual warranty document for each battery and check the capacity-retention percentage and any usage limits before you decide. Mission Green can walk you through the specific warranty terms for each option.
There is no single sticker price for these batteries, because the installed cost depends on system configuration, installation complexity and the rebates you are eligible for, including the federal Cheaper Home Batteries Program. Pylontech is generally the lowest cost per usable kilowatt-hour, Tesla sits at the premium end, and BYD's modular pricing varies with the capacity you choose. Because prices move and depend on your site, the honest way to compare them is a free, no-obligation assessment, where Mission Green quotes each option for your home and will tell you if a smaller system or waiting makes more sense.