Side-by-side

Compare

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

Market context

Australia purchasing view

Performance & Value

APX HV S2

Growatt

60/ 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% Usable5 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

MeasureAPX HV S2Smile G3 S5 BAT-9.3S
Capacity & Usability92 / 10088 / 100
Power & Efficiency65 / 10069 / 100
Longevity (verified)53 / 10060 / 100
Safety & Chemistry71 / 10069 / 100
Guarantee & Backbone43 / 10043 / 100
Energy Ecosystem44 / 10045 / 100

Capacity & Usability

APX HV S2
92 / 100
Smile G3 S5 BAT-9.3S
88 / 100

Power & Efficiency

APX HV S2
65 / 100
Smile G3 S5 BAT-9.3S
69 / 100

Longevity (verified)

APX HV S2
53 / 100
Smile G3 S5 BAT-9.3S
60 / 100

Safety & Chemistry

APX HV S2
71 / 100
Smile G3 S5 BAT-9.3S
69 / 100

Guarantee & Backbone

APX HV S2
43 / 100
Smile G3 S5 BAT-9.3S
43 / 100

Energy Ecosystem

APX HV S2
44 / 100
Smile G3 S5 BAT-9.3S
45 / 100
Side by side

Key specifications

MeasureAPX HV S2Smile G3 S5 BAT-9.3S
Published usable capacity range5–30 kWh9.3–37.2 kWh
Scored benchmark10 kWh9.3 kWh
ChemistryLFPLFP
Power5.0 kW5 kW
Round-tripNot recordedNot recorded
Cycle lifeNot recordedNot recorded

Published usable capacity range

APX HV S2
5–30 kWh
Smile G3 S5 BAT-9.3S
9.3–37.2 kWh

Scored benchmark

APX HV S2
10 kWh
Smile G3 S5 BAT-9.3S
9.3 kWh

Chemistry

APX HV S2
LFP
Smile G3 S5 BAT-9.3S
LFP

Power

APX HV S2
5.0 kW
Smile G3 S5 BAT-9.3S
5 kW

Round-trip

APX HV S2
Not recorded
Smile G3 S5 BAT-9.3S
Not recorded

Cycle life

APX HV S2
Not recorded
Smile G3 S5 BAT-9.3S
Not recorded
Local evidence

Australia evidence

EvidenceAPX HV S2Smile G3 S5 BAT-9.3S
OutcomeAvailable in AustraliaAvailable in Australia
Checked2026-08-022026-08-02
CertificationsThe exact Australian S2 datasheet publishes IEC 62619, IEC 62040, CE, RCM and UN 38.3 compliance.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 scopeAustralia; the APX warranty publishes a 10-year non-transferable term, with 70% retained capacity for the first five years and 50% through year 10, subject to operating and monitoring conditions.The exact Australian datasheet publishes 10-year product and battery-performance warranties, governed by current AlphaESS Australia terms and Australian Consumer Law.
Warranty remedyRepair or replacement hardware at Growatt's option.Repair or replacement at AlphaESS's option.
Labour and reinstallationLabour and compensation are excluded. Removal and reinstallation are excluded.Installer travel and on-site labour are excluded. Removal and reinstallation are not promised.
FreightLogistics costs are excluded.Replacement-parts freight is covered for an accepted claim.
Transfer and registrationThe governing Australian warranty states that it is non-transferable. Operating and monitoring conditions apply.Transfers automatically with the building while the system remains installed; ownership evidence may be required. Initial serial registration and eligible installation are required.
Grid compatibilityHigh-voltage DC battery for compatible Growatt three-phase hybrid inverters; backup performance depends on the paired inverter.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 fitNot established: Growatt MIN 2500-6000TL-XH2Confirmed: 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 noteGrowatt Australia publishes the exact APX HV S2 AU series.The exact 9.3 kWh battery module and supported stacks are current Australian approved-battery entries.
SourcesSource 1Source 2Source 3Source 1Source 2Source 3

Outcome

APX HV S2
Available in Australia
Smile G3 S5 BAT-9.3S
Available in Australia

Checked

APX HV S2
2026-08-02
Smile G3 S5 BAT-9.3S
2026-08-02

Certifications

APX HV S2
The exact Australian S2 datasheet publishes IEC 62619, IEC 62040, CE, RCM and UN 38.3 compliance.
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

APX HV S2
Australia; the APX warranty publishes a 10-year non-transferable term, with 70% retained capacity for the first five years and 50% through year 10, subject to operating and monitoring conditions.
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

APX HV S2
Repair or replacement hardware at Growatt's option.
Smile G3 S5 BAT-9.3S
Repair or replacement at AlphaESS's option.

Labour and reinstallation

APX HV S2
Labour and compensation are excluded. Removal and reinstallation are excluded.
Smile G3 S5 BAT-9.3S
Installer travel and on-site labour are excluded. Removal and reinstallation are not promised.

Freight

APX HV S2
Logistics costs are excluded.
Smile G3 S5 BAT-9.3S
Replacement-parts freight is covered for an accepted claim.

Transfer and registration

APX HV S2
The governing Australian warranty states that it is non-transferable. Operating and monitoring conditions apply.
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

APX HV S2
High-voltage DC battery for compatible Growatt three-phase hybrid inverters; backup performance depends on the paired inverter.
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

APX HV S2
Not established: Growatt MIN 2500-6000TL-XH2
Smile G3 S5 BAT-9.3S
Confirmed: SMILE-G3-S5-INV with SMILE-G3-BAT-9.3S

Local product pathway

APX HV S2
No separate local pathway recorded
Smile G3 S5 BAT-9.3S
No separate local pathway recorded

Buyer evidence

APX HV S2
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

APX HV S2
No model-specific notice recorded
Smile G3 S5 BAT-9.3S
No model-specific notice recorded

Review note

APX HV S2
Growatt Australia publishes the exact APX HV S2 AU series.
Smile G3 S5 BAT-9.3S
The exact 9.3 kWh battery module and supported stacks are current Australian approved-battery entries.

Sources

APX HV S2
Source 1Source 2Source 3
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 2 points.
Strongest dimensionsAPX HV S2: Capacity & Usability · Smile G3 S5 BAT-9.3S: Capacity & Usability
Largest differenceSmile G3 S5 BAT-9.3S has the largest pillar edge in Longevity (verified) (7 points).
Market evidenceAPX HV S2: 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.