Buying guide
Best home batteries in Australia (2026)
Our picks for different needs, from whole-home backup to adding a battery to existing solar, chosen from the manufacturers’ own Australian specifications and warranties. No manufacturer pays to be on this list.
Facts checked 22 October 2026.
The short list
- Best for whole-home backupFranklinWH aPower and aGate
- Best for a new solar and battery systemTesla Powerwall 3
- Best for adding a battery to existing solar, and the longest warrantyEnphase IQ Battery 5P
- Best for building the size you need, all in one unitSigenergy SigenStor
- Best for sizing in small stepsSungrow SBR
- Best for lots of capacity on one hybrid inverterAlphaESS SMILE-G3
- Best for pairing with your choice of inverterBYD Battery-Box Premium HVS and HVM
- Best capacity guaranteesonnen sonnenBatterie Evo
Best for whole-home backup
FranklinWH aPower and aGate
The aGate switches the whole home to battery in an outage and can black start, and the AC-coupled aPower works with the solar you already have.
- Usable energy
- 15 kWh per aPower
- Power
- 5 kW continuous, 10 kW peak for 10 seconds, per aPower
- Coupling
- AC-coupled (works with your existing inverter)
- Backup
- Whole-home backup through the aGate; black start capable
- Scalable
- Up to 225 kWh per aGate; up to 20 kW continuous with 4 or more aPowers
- Phases
- Single, two and three phase
Best for a new solar and battery system
Tesla Powerwall 3
The solar inverter is built in, so a new system needs one box, and up to 10 kW of output covers most homes.
- Energy capacity
- 13.5 kWh
- Power
- Up to 10 kW on grid and in backup, depending on local conditions
- Solar inverter
- Built in: 3 solar inputs with MPPTs, 97.5% solar-to-grid efficiency
- Backup
- Quick backup transition; 185 A motor start
- Scalable
- Up to 4 units
- Operating temperature
- -20 °C to 50 °C
Best for adding a battery to existing solar, and the longest warranty
Enphase IQ Battery 5P
It’s AC-coupled with built-in microinverters, comes in 5 kWh steps, and has a 15-year limited warranty.
- Usable energy
- 5.0 kWh per unit
- Power
- 3.84 kVA continuous, 7.68 kVA peak for 3 seconds, per unit
- Coupling
- AC-coupled, with six embedded microinverters
- Backup
- Yes, with the Enphase system controller
- Chemistry
- Lithium iron phosphate (LFP)
- Ingress rating
- IP55
Best for building the size you need, all in one unit
Sigenergy SigenStor
Modules of 5.2 or 7.8 kWh stack on Sigenergy’s own hybrid inverter, so capacity can be matched closely to the home.
- Battery modules
- 5.2 kWh (BAT 5.0) and 7.8 kWh (BAT 8.0) usable
- Design
- Modules stack on Sigenergy’s energy controller (hybrid inverter)
- Chemistry
- Lithium iron phosphate (LFP)
- Warranty
- 10 years on the battery and energy controller
- Capacity guarantee
- 70% of usable energy after 10 years, or a minimum throughput
- Condition
- Must stay connected to the internet for updates
Best for sizing in small steps
Sungrow SBR
Modules come in 3.2 kWh steps from 6.4 to 25.6 kWh, with up to 100% usable energy.
- Capacity
- 6.4 to 25.6 kWh (2 to 8 modules of 3.2 kWh)
- Usable energy
- Up to 100%
- Chemistry
- Lithium iron phosphate (LFP)
- Ingress rating
- IP55
- Weight
- 89 kg (SBR064) to 279 kg (SBR256)
- Warranty
- 10 years (conditions in Sungrow’s battery warranty letter)
Best for lots of capacity on one hybrid inverter
AlphaESS SMILE-G3
With 10.1 kWh modules in parallel, the SMILE-G3-B5 reaches 60.5 kWh on a single AlphaESS hybrid inverter.
- Battery modules
- 3.8, 4.0, 8.2 and 10.1 kWh nominal (3.6 to 9.6 kWh usable)
- Capacity
- Up to 60.5 kWh (SMILE-G3-B5 with six 10.1 kWh modules)
- Depth of discharge
- 95%
- Backup
- UPS-level backup
- Chemistry
- Lithium iron phosphate (LFP)
- Warranty
- 10 years product, 10 years battery performance (2024 datasheet)
Best for pairing with your choice of inverter
BYD Battery-Box Premium HVS and HVM
It’s a battery only, so it pairs with a range of hybrid inverters, and the Australian warranty spells out the throughput for every model.
- HVS
- 5.12 to 12.8 kWh usable
- HVM
- 8.28 to 22.08 kWh usable
- Inverter
- None built in: pairs with a compatible hybrid inverter
- Chemistry
- Lithium iron phosphate (LFP)
- Warranty
- 10 years product
- Capacity guarantee
- 70% of usable energy after 10 years, or a minimum throughput
Best capacity guarantee
sonnen sonnenBatterie Evo
sonnen guarantees the Evo keeps at least 80% of its nominal capacity for 10 years or 10,000 cycles; the other warranties on this list that state a figure guarantee 70%. It’s AC-coupled, backs up the home, and can restart an AC-coupled solar system in a blackout.
- Usable energy
- 10 kWh (11 kWh nominal, at 90% depth of discharge)
- Power
- 5 kW continuous
- Backup
- 5 kW continuous; up to 7,050 VA for 60 seconds; Black Start for AC-coupled solar
- Coupling
- AC-coupled; works with solar inverters up to 6 kW
- Phases
- Single phase
- Chemistry
- Lithium iron phosphate (LFP)
How we chose
We compared each battery’s usable capacity, power, backup ability, how it connects to solar (built-in inverter, hybrid or AC-coupled), how far it scales, and its Australian warranty terms, using only the manufacturer’s own documents. Each pick is the strongest for one need, so the list isn’t a ranking from best to worst.
What we didn’t use yet: prices, which vary by installer and change often, and owner reviews, which we’re starting to collect. We’ll add both as we have enough data.
What doesn’t count: advertising. Featured placements and quote partnerships on this site have no effect on this list.
Also checked
- Anker SOLIX X1: A modular battery from 5 to 30 kWh, sold to add to existing solar or with Anker’s own power module, with a 10-year warranty. Not a pick yet: Anker’s Australian product page doesn’t list usable capacity or power for each configuration, so we can’t compare it on the same terms.
- EcoFlow PowerOcean: A hybrid inverter and battery system in 5 and 8 kWh packs, up to 40 kWh per inverter, with 15 years on the 5 kWh pack. Not a pick yet: EcoFlow’s Australian site gives nominal capacity only and doesn’t publish the battery warranty terms behind its 15-year figure.
- Fox ESS EQ4800: A high-voltage battery in 4.66 kWh modules, scaling from 9.32 to 41.93 kWh. We couldn’t find every Australian figure we need, such as the warranty term, so it isn’t a pick yet.
- GoodWe Lynx Home F: A high-voltage battery from 6.55 to 16.38 kWh for GoodWe hybrid inverters. We couldn’t find every Australian figure we need, such as the warranty term, so it isn’t a pick yet.
- Huawei LUNA2000-S1: A modular battery that mixes 5 and 6.9 kWh modules, from 5 to 20.7 kWh, with an optimiser in each module. Not a pick yet: we couldn’t find Huawei’s Australian warranty terms for the LUNA2000-S1.
- SolaX T-BAT H: A stackable high-voltage battery for SolaX hybrid inverters, with a 10-year Australian warranty and a 70% capacity guarantee. Not a pick yet: SolaX’s product page gives nominal capacity only, so we can’t compare usable capacity with the others.
The federal discount
Any battery you choose must be on the Clean Energy Council’s approved list to earn the federal discount. Estimate yours with the battery rebate calculator, and read how the discount works.
Questions
- Which home battery is best?
- It depends on what you want it for. For blackout backup, look at how much power it delivers and how it switches over. For adding to existing solar, an AC-coupled battery avoids replacing your inverter. For a new system, a battery with a built-in or matching hybrid inverter keeps things simple.
- Do all of these get the federal battery discount?
- Only models on the Clean Energy Council’s approved battery list, installed by an accredited installer with a battery endorsement. Ask your installer to confirm the exact model is on the list.
- Why don’t you rank them 1 to 10?
- Because the right battery depends on the home. Each pick is the strongest on the published specifications for one need. Once we have enough owner reviews, we’ll add how they perform in real homes.