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Performance & Value

Smile G3 S5 9.3 kWh

9.3–37.2 kWh · LFP · DC-coupled

AlphaESSReleased 2025

63/ 100

Good

Global

LFP100% Usable

The verdict. In our Performance & Value class, AlphaESS Smile G3 S5 9.3 kWh leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

47thof 76 in Performance & ValueLower halfclass average 63.6
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The assessment

How it scores, by category

Capacity & Usability88
Power & Efficiency69
Longevity (verified)60
Safety & Chemistry75
Guarantee & Backbone43
Energy Ecosystem45

Market position

47thof 76 in Performance & ValueLower half
516376

Our reading

Smile G3 S5 9.3 kWh scores 63, placing 47 of 76 in the Performance & Value class against a class average of 63.6. Its strongest scoring dimension is capacity & usability (88), above the class average of 84. Guarantee & Backbone scores 43, the lowest pillar for this product. The class average on guarantee & backbone is 55. Key specifications: LFP, 5 kW continuous output.

The data

Chemistry
LFP
Power
5kW
Round-trip
Not recorded
Cycle life
Not recorded
Technology architecture

DC-coupled battery

Architecture guide

Stores DC energy and relies on system power electronics outside the battery product for household AC.

Product role
The published battery record covers the storage stack, controller and stated capacity range.
Published range
9.3–37.2 kWh
Phase
Not recorded
Backup boundary
Installation-specific
Architecture describes the product boundary. It is not a system design or an equipment-pairing decision.
Decision evidence

What the documents establish

Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.

Usable capacity

Stated depth of discharge: 100%. Published usable energy: 9.3 kWh in the scored configuration. These values may have different measurement conditions.

9.3 kWh usableScored configuration: SMILE-G3-S5-INV with SMILE-G3-BAT-9.3S. Published range 9.3–37.2 kWh.

The stated depth of discharge and published usable energy can have different test conditions or configuration limits. They do not by themselves establish nominal capacity or a reserve that is always inaccessible. Delivered AC energy and runtime also depend on the inverter, settings and loads.

Capacity range describes supported configurations; the score remains anchored to the reviewed reference configuration, not the largest stack.

Usable capacity sourceDepth-of-discharge source

Capacity guarantee: minimum retained at year 10

9.3 kWhfull6.5at yr 10
60708090100Rated capacity 100%Guaranteed floor 70.0%70.0%0yr2yr4yr6yr8yr10yr
Rated capacity (reference)Guaranteed floor: 70.0% at yr 10

No year-by-year capacity schedule is published for this product - the manufacturer guarantees only this end-of-term minimum, not a specific decline curve. Capacity figure based on the sourced usable capacity of the base configuration; modular systems scale with additional modules.

Before you buy
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWhat usable capacity, backup power and warranted operating conditions will the installed Smile G3 S5 9.3 kWh configuration deliver?

Verification & sources

Market context

Global evidencechange in the site menu

Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.

Benchmark anchor. Capacity range describes supported configurations; the score remains anchored to the reviewed reference configuration, not the largest stack. Scored model: SMILE-G3-S5-INV with SMILE-G3-BAT-9.3S · checked 2026-08-01. Evidence.

Sources & references · checked 2026-09-22

Strong evidence coverage

17 of 17 scored criteria link directly to a published source.

Values marked estimated, derived, or not found remain visible on the audit sheet and do not carry the same evidential weight as a linked source. Coverage measures direct links, not an independent guarantee that a claim is correct.

How far the evidence reaches

1 of 3 questions with rows in the rings reach beyond manufacturer claim; none is measured by review.solar.123456
  1. OutputManufacturer claim3 rows in the rings2 design facts beside the rings
  2. EnduranceWarranty terms: the maker's commitment4 warranty terms beside the rings
  3. SafetyCertified or regulator-listed1 of 4 rows in the rings beyond claim1 design fact beside the rings
  4. BackingWarranty terms: the maker's commitment1 warranty term beside the rings
  5. FitManufacturer claim1 row in the rings1 design fact beside the rings
  6. FootprintNot assessed for batteries

Rings, outside in: manufacturer claim, certified or regulator-listed, third-party source. The centre is review.solar's own measurement, empty for every product today. Warranty terms and design facts that rest on the maker's own word are counted beside the rings; a reviewed absence, or one that reaches beyond the maker's claim, stays in them. How the evidence puzzle works

Record revision. AlphaESS Australia SMILE-G3-S5/B5 + BAT-9.3S datasheet V2.1, current AU resource-centre material reviewed 2026-07-16. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.

Help strengthen this record

These are published evidence gaps, not private submissions. A source is reviewed under the same methodology whether it comes from a reader, installer or manufacturer.

View the open evidence register
Change ledger

Product record history

One earlier entry recorded a source recheck rather than a change to the published figure, and is not listed here. Every entry remains in the evidence record.

1 change to this record · 19 products changed in this update
  1. Record updated

    Cell provenance & traceability: Evidence status

    Before
    sourced
    After
    reviewed_absence
    Cell provenance & traceability
1 change to this record · 43 products changed in this update
  1. Record updated

    Safety certification: Evidence sources

    Before
    https://alphaessapi.alphaess.com/Public/Uploads/uploadfile/files/20251125/Datasheet-SMILE-G3-BAT-9.3S_EN_V2.0_AlphaESS_15062025-442.pdf
    After
    https://alphaessapi.alphaess.com/Public/Uploads/uploadfile/files/20251125/Datasheet-SMILE-G3-BAT-9.3S_EN_V2.0_AlphaESS_15062025-442.pdf; https://cer.gov.au/document/cec-approved-solar-batteries-0
    Safety certificationSafety certification
1 change to this record · 7 products changed in this update
  1. Record updated

    AU Warranty conditions

    Current text
    labour: The warranty excludes other costs such as transportation and the travelling and accommodation costs of persons providing on-site support, and it does not state who bears installer on-site labour. The end user is not charged for reasonable costs of a valid claim, including warranty processing, replacement parts and freight, and necessary and reasonably incurred claim costs may be reimbursed on documentary evidence.; registration: Initial serial registration and eligible installation are required.; remedy: Repair or replacement at AlphaESS's option.; removal reinstallation: Removal and reinstallation are not promised.; transferability: Non-transferable except where the products are installed in a building; the warranty transfers to a subsequent purchaser of that building or the products while they remain installed and the warranty terms are met.; transport: Replacement-parts freight is covered for an accepted claim.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    Primary datasheetWarranty throughput+1 in JSON record
3 changes to this record · 10 products changed in this update
  1. Record updated

    Safety certification

    Before
    Basic cert
    After
    UL9540 / IEC62619
    Safety certification
  2. Record updated

    Safety & Chemistry pillar score

    Before
    68.8
    After
    74.7
    Primary datasheet
  3. Record updated

    Global score

    Before
    61.5
    After
    62.8
    Primary datasheet
2 changes to this record · 49 products changed in this update
  1. Record updated

    US Support Note

    Before
    alphaess.com/us/products/smile-g3 returns 404. No official United States catalogue names SMILE-G3-BAT-9.3S. BAT-10.1P is a different module and is not transferred.
    After
    alphaess.com/us/products/smile-g3 returns 404. No official United States catalogue names SMILE-G3-BAT-9.3S. BAT-10.1P is a different module and is not transferred. Re-audited 2026-09-22: this determination rests solely on the fetch failure recorded above, with no independently reachable regional catalogue, store or archived copy consulted. Downgraded to not_reviewed - unavailable was not confirmed, and this pass did not re-fetch to confirm available either.
    US market evidence
  2. Record updated

    US Status

    Before
    unavailable
    After
    not_reviewed
    US market evidence
9 changes to this record · 152 products changed in this update
  1. Evidence added

    DE Status

    Before
    Not previously recorded
    After
    unavailable
    DE market evidence
  2. Evidence added

    DE Evidence sources

    Before
    Not previously recorded
    After
    https://www.alphaess.de/pages/smile-g3
    DE market evidence
  3. Evidence added

    US Status

    Before
    Not previously recorded
    After
    unavailable
    US market evidence
  4. Evidence added

    DE Support Note

    Before
    Not previously recorded
    After
    The German SMILE-G3 page does not name SMILE-G3-BAT-9.3S. BAT-10.1P is a different module and is not transferred.
    DE market evidence
  5. Record updated

    Source revision

    Before
    AlphaESS Australia SMILE-G3-S5/B5 + BAT-9.3S datasheet V2.1, current AU resource-centre material reviewed 2026-07-16
    After
    AlphaESS Australia SMILE-G3-S5/B5 + BAT-9.3S datasheet V2.1, current AU resource-centre material reviewed 2026-07-16. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
    Primary datasheet
  6. Evidence added

    US Support Note

    Before
    Not previously recorded
    After
    alphaess.com/us/products/smile-g3 returns 404. No official United States catalogue names SMILE-G3-BAT-9.3S. BAT-10.1P is a different module and is not transferred.
    US market evidence
  7. Evidence added

    US Certifications

    Before
    Not previously recorded
    After
    US market evidence
  8. Evidence added

    DE Certifications

    Before
    Not previously recorded
    After
    DE market evidence
  9. Evidence added

    US Evidence sources

    Before
    Not previously recorded
    After
    https://www.alphaess.com/us/products/smile-g3
    US market evidence
2 changes to this record · 12 products changed in this update
  1. Record updated

    Published name

    Before
    Smile G3 S5 BAT-9.3S
    After
    Smile G3 S5 9.3 kWh
    Primary datasheet
  2. Record updated

    Canonical identity

    Before
    AlphaESS Smile G3 S5 BAT-9.3S
    After
    AlphaESS Smile G3 S5 9.3 kWh
    Primary datasheet
8 changes to this record · 78 products changed in this update
  1. Evidence added

    Value

    Before
    Not previously recorded
    After
    Reviewed 2026-08-25: no exact-product battery/DC round-trip efficiency with a complete measurement boundary was established in the reviewed primary source set. This is a scoped reviewed absence, not proof that the value has never been measured.
    Direct claim routePrimary datasheet+7 in JSON record
  2. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Direct claim routePrimary datasheet+7 in JSON record
  3. Evidence added

    State

    Before
    Not previously recorded
    After
    reviewed_absence
    Direct claim routePrimary datasheet+7 in JSON record
  4. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://alphaesspartner.blob.core.windows.net/osc/osc/material202604220110437542700650557856.pdf
    Primary datasheet+8 in JSON record
  5. Evidence added

    Value

    Before
    Not previously recorded
    After
    Reviewed 2026-08-25: no exact-product cycle-life result to exactly 70% retained capacity was established in the reviewed primary source set. Warranty limits and other or unstated endpoints are not converted. This is a scoped reviewed absence.
    Direct claim routePrimary datasheet+7 in JSON record
  6. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Direct claim routePrimary datasheet+7 in JSON record
  7. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://alphaesspartner.blob.core.windows.net/osc/osc/material202604220110437542700650557856.pdf
    Primary datasheet+8 in JSON record
  8. Evidence added

    State

    Before
    Not previously recorded
    After
    reviewed_absence
    Direct claim routePrimary datasheet+7 in JSON record

This is review.solar's publication history. It does not claim the product changed on the recorded date, and it excludes compatibility, system pairing, installation suitability and relative leaderboard prose. Open the complete JSON record.

Evidence timeline

Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.

  1. Core scorecard evidence checked
  2. US market evidence checked
  3. DE market evidence checked
  4. Australian certification source identity verified
  5. AU market evidence checked
  6. Plain-language warranty summary checked
  7. Series benchmark evidence checked

Evidence record (JSON)

Scored by Solar Analytica Research

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