Performance & Value
Smart Battery S0
iStore
62/ 100
Strong evidence coverage · 100%
Evidence checked 2026-07-27
Available in Australia · checked 2026-07-27
Buyer evidence: Ready (100% direct coverage).
LFP100% Usable5 kWh Modular
Full scorecard Score profile
| Measure | Smart Battery S0 | Smile G3 S5 BAT-9.3S |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
Capacity & Usability
- Smart Battery S0
94 / 100 - Smile G3 S5 BAT-9.3S
88 / 100
Power & Efficiency
- Smart Battery S0
52 / 100 - Smile G3 S5 BAT-9.3S
69 / 100
Longevity (verified)
- Smart Battery S0
56 / 100 - Smile G3 S5 BAT-9.3S
60 / 100
Safety & Chemistry
- Smart Battery S0
78 / 100 - Smile G3 S5 BAT-9.3S
69 / 100
Guarantee & Backbone
- Smart Battery S0
50 / 100 - Smile G3 S5 BAT-9.3S
43 / 100
Energy Ecosystem
- Smart Battery S0
42 / 100 - Smile G3 S5 BAT-9.3S
45 / 100
Key specifications
| Measure | Smart Battery S0 | Smile G3 S5 BAT-9.3S |
|---|---|---|
| Published usable capacity range | 5–30 kWh | 9.3–37.2 kWh |
| Scored benchmark | 5 kWh | 9.3 kWh |
| Chemistry | LFP | LFP |
| Power | 2.5 kW | 5 kW |
| Round-trip | Not recorded | Not recorded |
| Cycle life | Not recorded | Not recorded |
Published usable capacity range
- Smart Battery S0
- 5–30 kWh
- Smile G3 S5 BAT-9.3S
- 9.3–37.2 kWh
Scored benchmark
- Smart Battery S0
- 5 kWh
- Smile G3 S5 BAT-9.3S
- 9.3 kWh
Chemistry
- Smart Battery S0
- LFP
- Smile G3 S5 BAT-9.3S
- LFP
Power
- Smart Battery S0
- 2.5 kW
- Smile G3 S5 BAT-9.3S
- 5 kW
Round-trip
- Smart Battery S0
- Not recorded
- Smile G3 S5 BAT-9.3S
- Not recorded
Cycle life
- Smart Battery S0
- Not recorded
- Smile G3 S5 BAT-9.3S
- Not recorded
Australia evidence
| Evidence | Smart Battery S0 | Smile G3 S5 BAT-9.3S |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-07-27 | 2026-07-16 |
| Certifications | The exact iStore Smart Battery technical sheet lists RCM, CEC, IEC 62619, IEC 62040 and UN 38.3. | The exact Australian SMILE-G3-S5/B5 + BAT-9.3S datasheet lists AS/NZS 4777.2 grid regulation, IEC 62109 and IEC 62040 safety standards, IEC 61000 EMC, and IEC 62619 for the battery module. |
| Warranty scope | iStore's March 2026 Australian warranty names the IS-BATT-5000-ES module and the 5, 10 and 15 kWh S0 systems. The S0 performance term is 10 years or 18.25 MWh at 70% end-of-life capacity, whichever occurs first. | The exact Australian datasheet lists a 10-year product warranty and 10-year battery-performance warranty for SMILE-G3-S5/B5 with BAT-9.3S. Alpha ESS Australia's current residential warranty terms name the SMILE-G3-S5 system, apply to installations from 1 November 2024, and are additional to Australian Consumer Law rights. |
| Grid compatibility | The battery is designed for iStore single-phase and three-phase hybrid inverters. Backup equipment, inverter approval, export control and DNSP acceptance remain system-specific. | The exact S5 inverter configuration is a 230 V single-phase hybrid system with a 5 kVA backup port, integrated anti-islanding and AS/NZS 4777.2 grid regulation. Final DNSP approval remains installation-specific. |
| Buyer evidence | Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. | Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. |
| Safety notice | No model-specific notice recorded | No model-specific notice recorded |
| Review note | iStore publishes Australian product, warranty, support and RMA material and operates an Australian support desk. | This is the current 9.3 kWh module configuration documented in AlphaESS Australia's April 2026 resource-centre material. It is distinct from the historical BAT-10.1P record retained elsewhere in the benchmark. |
| Sources | Source 1Source 2Source 3 | Source 1Source 2Source 3Source 4 |
Outcome
- Smart Battery S0
- Available in Australia
- Smile G3 S5 BAT-9.3S
- Available in Australia
Checked
- Smart Battery S0
- 2026-07-27
- Smile G3 S5 BAT-9.3S
- 2026-07-16
Certifications
- Smart Battery S0
- The exact iStore Smart Battery technical sheet lists RCM, CEC, IEC 62619, IEC 62040 and UN 38.3.
- Smile G3 S5 BAT-9.3S
- The exact Australian SMILE-G3-S5/B5 + BAT-9.3S datasheet lists AS/NZS 4777.2 grid regulation, IEC 62109 and IEC 62040 safety standards, IEC 61000 EMC, and IEC 62619 for the battery module.
Warranty scope
- Smart Battery S0
- iStore's March 2026 Australian warranty names the IS-BATT-5000-ES module and the 5, 10 and 15 kWh S0 systems. The S0 performance term is 10 years or 18.25 MWh at 70% end-of-life capacity, whichever occurs first.
- Smile G3 S5 BAT-9.3S
- The exact Australian datasheet lists a 10-year product warranty and 10-year battery-performance warranty for SMILE-G3-S5/B5 with BAT-9.3S. Alpha ESS Australia's current residential warranty terms name the SMILE-G3-S5 system, apply to installations from 1 November 2024, and are additional to Australian Consumer Law rights.
Grid compatibility
- Smart Battery S0
- The battery is designed for iStore single-phase and three-phase hybrid inverters. Backup equipment, inverter approval, export control and DNSP acceptance remain system-specific.
- Smile G3 S5 BAT-9.3S
- The exact S5 inverter configuration is a 230 V single-phase hybrid system with a 5 kVA backup port, integrated anti-islanding and AS/NZS 4777.2 grid regulation. Final DNSP approval remains installation-specific.
Buyer evidence
- Smart Battery S0
- Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed.
- Smile G3 S5 BAT-9.3S
- Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed.
Safety notice
- Smart Battery S0
- No model-specific notice recorded
- Smile G3 S5 BAT-9.3S
- No model-specific notice recorded
Review note
- Smart Battery S0
- iStore publishes Australian product, warranty, support and RMA material and operates an Australian support desk.
- Smile G3 S5 BAT-9.3S
- This is the current 9.3 kWh module configuration documented in AlphaESS Australia's April 2026 resource-centre material. It is distinct from the historical BAT-10.1P record retained elsewhere in the benchmark.
Sources
Australia purchase checks
Make the shortlist quote-ready
These checks sit beside the benchmark score. They are site, tariff and contract questions that no product score can settle.
- Lock the exact model and installation-date listing.
Ask for every model number to appear on the quote and order. The Clean Energy Council product lists are live: STC creation requires listed products at installation, and network requirements may also depend on current approval.
- Obtain the site-specific connection settings.
Have the retailer state the supply phase, inverter connection limit, export limit and any export-control cost. The local network connection agreement, not a generic datasheet, determines those settings. See the Australian Government's connection guidance.
- Test savings against the household, not a brochure.
Ask which bills or interval data, tariff, feed-in rate, export limit and future loads support the savings and payback claim. Self-consumed electricity and tariff timing usually matter more than a headline feed-in rate. See the system sizing and battery savings guidance.
- Specify the operating outcome.
Define the usable energy, output power, backed-up circuits and outage behaviour. Confirm whether VPP participation, an internet connection, or an additional controller changes the configuration, reserve level, warranty or support path.
- Name the party responsible after installation.
Keep the retailer, installer, manufacturer warranty and escalation path in the contract. Australian Consumer Law guarantees apply separately from any manufacturer warranty; where one business supplied both product and installation, it is generally responsible for the remedy. See the ACCC guidance.
Where the comparison separates
OverallThe products are tied at 62.
Strongest dimensionsSmart Battery S0: Capacity & Usability · Smile G3 S5 BAT-9.3S: Capacity & Usability
Largest differenceSmile G3 S5 BAT-9.3S has the largest pillar edge in Power & Efficiency (17 points).
Market evidenceSmart Battery S0: buyer ready · Smile G3 S5 BAT-9.3S: buyer ready
A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.
Both products are scored in the Performance & Value class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.