Compare Solar Panels, Batteries & Inverters Side by Side

Side by side

Score profile

Show differences only (1 of 6 rows match)

Measure	B2 HV + H2	Smile G3 S5 BAT-9.3S
Capacity & Usability	85 / 100	88 / 100
Power & Efficiency	54 / 100	69 / 100
Longevity (verified)	53 / 100	60 / 100
Safety & Chemistry	73 / 100	69 / 100
Guarantee & Backbone	43 / 100	43 / 100
Energy Ecosystem	40 / 100	45 / 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

Show differences only (4 of 7 rows match)

Measure	B2 HV + H2	Smile G3 S5 BAT-9.3S
Architecture	DC-coupled battery	DC-coupled battery
Published usable capacity range	4.5–22.5 kWh	9.3–37.2 kWh
Scored benchmark	9 kWh	9.3 kWh
Chemistry	LFP	LFP
Power	6.0 kW	5 kW
Round-trip	Not recorded	Not recorded
Cycle life	Not recorded	Not recorded

Architecture

B2 HV + H2: DC-coupled battery
Smile G3 S5 BAT-9.3S: DC-coupled battery

Published usable capacity range

B2 HV + H2: 4.5–22.5 kWh
Smile G3 S5 BAT-9.3S: 9.3–37.2 kWh

Scored benchmark

B2 HV + H2: 9 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

Evidence	B2 HV + H2	Smile G3 S5 BAT-9.3S
Outcome	Available in Australia	Available in Australia
Checked	2026-08-15	2026-08-02
Certifications	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.	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	Ten 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 remedy	SAJ may repair or replace an eligible defective product under the governing terms.	Repair or replacement at AlphaESS's option.
Labour and reinstallation	Unconditional 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.
Freight	Unconditional full-term transport coverage was not established and is not credited.	Replacement-parts freight is covered for an accepted claim.
Transfer and registration	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.	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	The 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.
Local product pathway	No separate local pathway recorded	No separate local pathway recorded
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	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.	The exact 9.3 kWh battery module and supported stacks are current Australian approved-battery entries.
Register: parts term	Not in the structured register	stated: Ten-year product warranty for the named SMILE-G3-S5 system when installed on or after 1 November 2024.
Register: labour and service	Not in the structured register	excluded: Normal maintenance, installer costs, travel and accommodation for on-site support are excluded. No general site-labour reimbursement is promised.
Register: transport and freight	Not in the structured register	conditional: Replacement parts and freight are included for valid claims, but other transport, travel and accommodation costs are excluded and reimbursement requires documentary evidence.
Register: registration	Not in the structured register	conditional: Installation requires an SAA-accredited installer with a valid Alpha Installer ID, and the serial number must be registered before a warranty claim.
Register: transferability	Not in the structured register	stated: The warranty transfers to a subsequent purchaser of the building or products while the products remain installed and all warranty conditions continue to be met.
Register: explicit unknowns	Not in the structured register	3 retained
Latest reviewed Approval Watch event	No exact-identity event in reviewed history	No exact-identity event in reviewed history
Sources	Source 1 Source 2 Source 3 Source 4 Source 5 Source 6 Source 7	Source 1 Source 2 Source 3

Outcome

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

Checked

B2 HV + H2: 2026-08-15
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.

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.

Register: parts term

B2 HV + H2: Not in the structured register
Smile G3 S5 BAT-9.3S: stated: Ten-year product warranty for the named SMILE-G3-S5 system when installed on or after 1 November 2024.

Register: labour and service

B2 HV + H2: Not in the structured register
Smile G3 S5 BAT-9.3S: excluded: Normal maintenance, installer costs, travel and accommodation for on-site support are excluded. No general site-labour reimbursement is promised.

Register: transport and freight

B2 HV + H2: Not in the structured register
Smile G3 S5 BAT-9.3S: conditional: Replacement parts and freight are included for valid claims, but other transport, travel and accommodation costs are excluded and reimbursement requires documentary evidence.

Register: registration

B2 HV + H2: Not in the structured register
Smile G3 S5 BAT-9.3S: conditional: Installation requires an SAA-accredited installer with a valid Alpha Installer ID, and the serial number must be registered before a warranty claim.

Register: transferability

B2 HV + H2: Not in the structured register
Smile G3 S5 BAT-9.3S: stated: The warranty transfers to a subsequent purchaser of the building or products while the products remain installed and all warranty conditions continue to be met.

Register: explicit unknowns

B2 HV + H2: Not in the structured register
Smile G3 S5 BAT-9.3S: 3 retained

Latest reviewed Approval Watch event

B2 HV + H2: No exact-identity event in reviewed history
Smile G3 S5 BAT-9.3S: No exact-identity event in reviewed history

Sources

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

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.

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.

Compare

B2 HV + H24.5–22.5 kWh

Smile G3 S5 BAT-9.3S9.3–37.2 kWh