COMPAREAustralian buying guide · Home batteries
Blackout protection is a property-level electrical design, not a feature unlocked by owning a battery. The inverter, backup gateway, protected circuits and starting loads all decide what remains powered when the grid disappears.
Quick recommendations
One best-fit option per brand, selected using this guide's rules. Fewer choices appear when fewer brands qualify. Product details can change independently of the editorial update above; check each profile's source and verification dates before purchase.
Research-based recommendation · catalogue evidence
Homes prioritising high inverter output and an integrated battery, switch box and control system
Watch: The broad A Series name covers materially different single-phase, three-phase and AC-coupled products.
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Research-based recommendation · catalogue evidence
Guide fit balanced against listed planning price: $12,750. Homes wanting a high-capacity all-in-one system with phase-matched backup and a choice of warranty tier
Watch: The smallest documented stack has 14 kWh usable and a 7 kW battery-side ceiling. Backup also depends on the inverter and the loads on each phase.
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Research-based recommendation · catalogue evidence
A simple, tightly integrated solar and backup experience
Watch: Powerwall 3 is a single-phase inverter. On a three-phase property Tesla documents a 5 kW limit for the supported single-phase connection.
View product →Things to consider
Essential-load backup usually covers lights, refrigeration, internet and selected power points. Whole-home backup can be convenient, but large air-conditioners, ovens, pumps and EV chargers may still need automatic load control.
Usable kWh determines duration; inverter kW and surge capability determine what can start and run together. Ask the installer for a documented backup power limit, not a vague promise that the battery does backup.
Solar can refill a battery during an outage only when the system supports backup solar operation. Cloudy weather, minimum reserve and overnight use should be included in the design.
Product comparison
The match score measures fit against this guide's published rules (55 baseline points plus up to 42 for matched preferences). Missing prices earn no affordability points. Equal scores mean equal rule matches, not equal tested performance. Prices are dated planning evidence, not live offers.
Scores use recorded catalogue attributes, not measured performance. Budget and premium selections compare remaining brand finalists, so they are alternatives to the overall pick.
| Product | Price | Warranty | Key specifications | Guide match | Actions |
|---|---|---|---|---|---|
| HinenA Series | $12,750 | 10 years / current Australian terms apply |
| 97/100 | View productCompare |
| SAJHS5 EK70 / EK90 | $12,750 | EK70 10 years, EK90 15 years. Battery retention to 70% subject to throughput and connectivity terms. |
| 97/100 | View productCompare |
| TeslaPowerwall 3 | $13,250 | 10 years |
| 97/100 | View productCompare |
 Anker SOLIXX1 | $13,250 | 10 years / conditions apply |
| 97/100 | View productCompare |
 SigenergySigenStor | $12,750 | 10-year product warranty under the Australian terms. The 70% retention guarantee uses model-specific throughput limits and warranty test capacities, including 5.84 kWh for BAT 6.0 and 8.76 kWh for BAT 10.0. |
| 90/100 | View productCompare |
 GoodWeESA Single-phase | $13,250 | 10-year limited inverter and G20 battery warranties, subject to terms. Confirm G21 coverage for the quoted unit. |
| 90/100 | View productCompare |
 GoodWeESA Three-phase | $13,250 | 10-year limited inverter and G20 battery warranties, subject to terms. Confirm G21 coverage for the quoted unit. |
| 90/100 | View productCompare |
 FranklinWHaPower X | $13,750 | 12 years. The 70% capacity guarantee is subject to 43 MWh throughput for 13.6 kWh or 60 MWh for 15 kWh. |
| 87/100 | View productCompare |
Frequently asked questions
No. Some installations are grid-connected only unless a compatible backup gateway and protected-circuit design are added.
Sometimes, but the inverter, compressor starting current, phase arrangement and other simultaneous loads must all be checked by the installer.
There is no universal figure. A higher reserve improves outage readiness but leaves less capacity for daily bill reduction.
Ready to narrow it down?
