SMILE-G3
97/100 guide matchResearch-based recommendation · catalogue evidence
Homes wanting a modular AlphaESS battery and inverter package
Watch: Overlapping SMILE and SMILE-G3 names make exact battery and inverter codes essential.
View product →Australian buying guide · Home batteries
Best modular home batteries in Australia
Modular batteries let the installer select capacity in smaller steps instead of forcing one fixed pack size. That is useful when actual household data points to 15 or 20 kWh rather than a neat marketing number.
- Editorial update
- Latest listed product update
- Reading time
- 6 minutes
- Author
- Patryk Lazarz (TechManPat)
Quick recommendations
The shortlist.
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.
B2S HV New
97/100 guide matchResearch-based recommendation · catalogue evidence
Guide fit balanced against listed planning price: $11,250. Larger homes wanting a newer SAJ stack with high charge/discharge capability and broad capacity coverage
Watch: A large B2S stack does not automatically provide equally large AC output; the selected H2 inverter remains the household power limit.
View product →
CQ7
97/100 guide matchResearch-based recommendation · catalogue evidence
Homes needing a large, expandable Fox ESS battery with a current phase-matched hybrid inverter
Watch: The smallest approved configuration is already close to 14 kWh, which can be oversized for low overnight use.
View product →Things to consider
What to check before buying.
01Module increments affect the final size
Compare minimum system size, per-module usable capacity and maximum stack size. Two products with the same headline maximum can offer very different practical increments.
02Expansion may have a deadline
Manufacturers can restrict mixing old and new modules because batteries age and firmware generations change. Get the expansion policy in writing.
03Installation still sets the power limit
Adding energy capacity may not raise inverter output. A larger stack can run the same loads for longer while doing nothing for simultaneous appliance demand.
Product comparison
Compare the guide-qualified products.
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.
How this guide scores fit
- Provides substantial expansion headroom — weight 18
- States at least a ten-year warranty — weight 12
- Supports backup when correctly configured — weight 10
- Can suit a three-phase system design — weight 8
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 |
|---|---|---|---|---|---|
| AlphaESSSMILE-G3 | $9,250 | 10 years / conditions apply |
| 97/100 | View productCompare |
| SAJB2S HV New | $11,250 | 10 years |
| 97/100 | View productCompare |
| Fox ESSCQ7 | $11,250 | 10 years / current Australian terms apply |
| 97/100 | View productCompare |
 iStoreSmart String ESS | $12,000 | 10 years / throughput conditions apply |
| 97/100 | View productCompare |
 HYXiE50–E500-H2 | $12,250 | 10 years or 6,000 cycles under the current Australian terms |
| 97/100 | View productCompare |
 PylontechForce H3 | $12,250 | 10 years / current Australian terms apply |
| 97/100 | View productCompare |
 FroniusReserva | $12,250 | 10 years |
| 97/100 | View productCompare |
 SungrowSBH100–400 | $12,250 | 10 years / current Australian terms apply |
| 97/100 | View productCompare |
Frequently asked questions
Quick answers before you compare.
Can I install one module and add more later?
Only when the product's minimum stack size and expansion policy allow it.
Does adding modules increase inverter power?
Usually not. Capacity and inverter output are separate specifications.
Are modular batteries easier to replace?
They can simplify service, but replacement procedures, balancing and warranty decisions remain manufacturer controlled.
Ready to narrow it down?