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Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.

Market context

Australia purchasing view

Performance & Value

B2 HV + H2

SAJ

58/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-08-02

Available in Australia · checked 2026-08-02

Buyer evidence: Ready (100% direct coverage).

LFP5 kWh Modular
Full scorecard
Performance & Value

Smile G3 S5 BAT-9.3S

AlphaESS

62/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-08-02

Available in Australia · checked 2026-08-02

Buyer evidence: Ready (100% direct coverage).

LFP100% Usable
Full scorecard
Side by side

Score profile

MeasureB2 HV + H2Smile G3 S5 BAT-9.3S
Capacity & Usability85 / 10088 / 100
Power & Efficiency54 / 10069 / 100
Longevity (verified)53 / 10060 / 100
Safety & Chemistry73 / 10069 / 100
Guarantee & Backbone43 / 10043 / 100
Energy Ecosystem40 / 10045 / 100

Capacity & Usability

B2 HV + H2
85 / 100
Smile G3 S5 BAT-9.3S
88 / 100

Power & Efficiency

B2 HV + H2
54 / 100
Smile G3 S5 BAT-9.3S
69 / 100

Longevity (verified)

B2 HV + H2
53 / 100
Smile G3 S5 BAT-9.3S
60 / 100

Safety & Chemistry

B2 HV + H2
73 / 100
Smile G3 S5 BAT-9.3S
69 / 100

Guarantee & Backbone

B2 HV + H2
43 / 100
Smile G3 S5 BAT-9.3S
43 / 100

Energy Ecosystem

B2 HV + H2
40 / 100
Smile G3 S5 BAT-9.3S
45 / 100
Side by side

Key specifications

MeasureB2 HV + H2Smile G3 S5 BAT-9.3S
Published usable capacity range4.8–24 kWh9.3–37.2 kWh
Scored benchmark9.6 kWh9.3 kWh
ChemistryLFPLFP
Power6.0 kW5 kW
Round-tripNot recordedNot recorded
Cycle lifeNot recordedNot recorded

Published usable capacity range

B2 HV + H2
4.8–24 kWh
Smile G3 S5 BAT-9.3S
9.3–37.2 kWh

Scored benchmark

B2 HV + H2
9.6 kWh
Smile G3 S5 BAT-9.3S
9.3 kWh

Chemistry

B2 HV + H2
LFP
Smile G3 S5 BAT-9.3S
LFP

Power

B2 HV + H2
6.0 kW
Smile G3 S5 BAT-9.3S
5 kW

Round-trip

B2 HV + H2
Not recorded
Smile G3 S5 BAT-9.3S
Not recorded

Cycle life

B2 HV + H2
Not recorded
Smile G3 S5 BAT-9.3S
Not recorded
Local evidence

Australia evidence

EvidenceB2 HV + H2Smile G3 S5 BAT-9.3S
OutcomeAvailable in AustraliaAvailable in Australia
Checked2026-08-022026-08-02
CertificationsBAT-937 lists the exact B2 HV1 and HV5 configurations, approved 15 April 2026 and expiring 31 December 2027., EESS-260267-0 lists H2-3K-S2 through H2-6K-S2, approved 16 April 2026 and expiring 16 April 2029., EESS-260253-0 lists H2-5K-T2 through H2-10K-T2, approved 14 April 2026 and expiring 14 April 2029.The current Australian approved-battery export lists SMILE-G3-BAT-9.3S and stacks through six modules to 31 December 2027; the exact system datasheet publishes IEC 62619 and AS/NZS 4777.2.
Warranty scopeTen years from commissioning for B2, subject to throughput, installation, reporting and compatible-inverter conditions. Retention is not credited because the governing wording conflicts.The exact Australian datasheet publishes 10-year product and battery-performance warranties, governed by current AlphaESS Australia terms and Australian Consumer Law.
Warranty remedySAJ may repair or replace an eligible defective product under the governing terms.Repair or replacement at AlphaESS's option.
Labour and reinstallationUnconditional full-term labour coverage was not established and is not credited. Unconditional removal and reinstallation coverage was not established and is not credited.Installer travel and on-site labour are excluded. Removal and reinstallation are not promised.
FreightUnconditional full-term transport coverage was not established and is not credited.Replacement-parts freight is covered for an accepted claim.
Transfer and registrationAn automatic transfer right was not established in the reviewed governing document. The product must be installed within the stated six-month window and a warning or failure must be reported within 30 days.Transfers automatically with the building while the system remains installed; ownership evidence may be required. Initial serial registration and eligible installation are required.
Grid compatibilityThe exact approved H2 single-phase and three-phase families are listed separately. The scored reference is single-phase H2-6K-S2.The exact S5 configuration is a 230 V single-phase hybrid system with 5 kVA backup and AS/NZS 4777.2 grid regulation; final DNSP approval remains installation-specific.
System fitNo exact product pairing recordedConfirmed: SMILE-G3-S5-INV with SMILE-G3-BAT-9.3S
Local product pathwayNo separate local pathway recordedNo separate local pathway recorded
Buyer evidenceReady (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 noticeNo model-specific notice recordedNo model-specific notice recorded
Review noteThis is an H2 inverter plus B2 HV battery combination, not an HS2 all-in-one record. Backup scope, VPP and compatibility beyond the exact H2 and B2 evidence are not inferred.The exact 9.3 kWh battery module and supported stacks are current Australian approved-battery entries.
SourcesSource 1Source 2Source 3Source 4Source 5Source 6Source 7Source 1Source 2Source 3

Outcome

B2 HV + H2
Available in Australia
Smile G3 S5 BAT-9.3S
Available in Australia

Checked

B2 HV + H2
2026-08-02
Smile G3 S5 BAT-9.3S
2026-08-02

Certifications

B2 HV + H2
BAT-937 lists the exact B2 HV1 and HV5 configurations, approved 15 April 2026 and expiring 31 December 2027., EESS-260267-0 lists H2-3K-S2 through H2-6K-S2, approved 16 April 2026 and expiring 16 April 2029., EESS-260253-0 lists H2-5K-T2 through H2-10K-T2, approved 14 April 2026 and expiring 14 April 2029.
Smile G3 S5 BAT-9.3S
The current Australian approved-battery export lists SMILE-G3-BAT-9.3S and stacks through six modules to 31 December 2027; the exact system datasheet publishes IEC 62619 and AS/NZS 4777.2.

Warranty scope

B2 HV + H2
Ten years from commissioning for B2, subject to throughput, installation, reporting and compatible-inverter conditions. Retention is not credited because the governing wording conflicts.
Smile G3 S5 BAT-9.3S
The exact Australian datasheet publishes 10-year product and battery-performance warranties, governed by current AlphaESS Australia terms and Australian Consumer Law.

Warranty remedy

B2 HV + H2
SAJ may repair or replace an eligible defective product under the governing terms.
Smile G3 S5 BAT-9.3S
Repair or replacement at AlphaESS's option.

Labour and reinstallation

B2 HV + H2
Unconditional full-term labour coverage was not established and is not credited. Unconditional removal and reinstallation coverage was not established and is not credited.
Smile G3 S5 BAT-9.3S
Installer travel and on-site labour are excluded. Removal and reinstallation are not promised.

Freight

B2 HV + H2
Unconditional full-term transport coverage was not established and is not credited.
Smile G3 S5 BAT-9.3S
Replacement-parts freight is covered for an accepted claim.

Transfer and registration

B2 HV + H2
An automatic transfer right was not established in the reviewed governing document. The product must be installed within the stated six-month window and a warning or failure must be reported within 30 days.
Smile G3 S5 BAT-9.3S
Transfers automatically with the building while the system remains installed; ownership evidence may be required. Initial serial registration and eligible installation are required.

Grid compatibility

B2 HV + H2
The exact approved H2 single-phase and three-phase families are listed separately. The scored reference is single-phase H2-6K-S2.
Smile G3 S5 BAT-9.3S
The exact S5 configuration is a 230 V single-phase hybrid system with 5 kVA backup and AS/NZS 4777.2 grid regulation; final DNSP approval remains installation-specific.

System fit

B2 HV + H2
No exact product pairing recorded
Smile G3 S5 BAT-9.3S
Confirmed: SMILE-G3-S5-INV with SMILE-G3-BAT-9.3S

Local product pathway

B2 HV + H2
No separate local pathway recorded
Smile G3 S5 BAT-9.3S
No separate local pathway recorded

Buyer evidence

B2 HV + H2
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

B2 HV + H2
No model-specific notice recorded
Smile G3 S5 BAT-9.3S
No model-specific notice recorded

Review note

B2 HV + H2
This is an H2 inverter plus B2 HV battery combination, not an HS2 all-in-one record. Backup scope, VPP and compatibility beyond the exact H2 and B2 evidence are not inferred.
Smile G3 S5 BAT-9.3S
The exact 9.3 kWh battery module and supported stacks are current Australian approved-battery entries.

Sources

B2 HV + H2
Source 1Source 2Source 3Source 4Source 5Source 6Source 7
Smile G3 S5 BAT-9.3S
Source 1Source 2Source 3
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.

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

Decision snapshot

Where the comparison separates

OverallSmile G3 S5 BAT-9.3S leads the global score by 4 points.
Strongest dimensionsB2 HV + H2: 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 (15 points).
Market evidenceB2 HV + H2: 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.