The assessment
How it scores, by category
Market position
The data
DC-coupled battery
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
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
Usable capacity
100% of this battery’s nominal capacity is usable, 9.3 kWh in the scored configuration.9.3 kWh usableScored configuration: SMILE-G3-S5-INV with SMILE-G3-BAT-9.3S. Published range 9.3–37.2 kWh.
No reserve is withheld at the stated depth of discharge.
At a sourced 100% depth of discharge the usable and nominal figures are the same number, so no separate nominal capacity is stated.
Usable capacity sourceDepth-of-discharge sourceCapacity guarantee: minimum retained at year 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.
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 2026-09-01
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.
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.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 1 more
- Archived copy of the primary sourcePDF ↗
Product record history
9 changes to this record · 152 products changed in this update
DE Evidence sources
- Before
- Not previously recorded
- After
- https://www.alphaess.de/pages/smile-g3
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.
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.
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 Evidence sources
- Before
- Not previously recorded
- After
- https://www.alphaess.com/us/products/smile-g3
1 change to this record · 147 products changed in this update
A92C76A167Cc
- Current text
- accepted at: 2026-08-09; category: battery; certification model: SMILE-G3-BAT-9.3S; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: alphaess-smile-g3-s5-bat-9-3s-au; source key: data/batteries/alphaess_smile_g3_s5_bat_9_3s_au.json; source manufacturer name: Alpha ESS Co Ltd; validation: approved at: 2025-11-17; candidate model: SMILE-G3-BAT-9.3S; data confidence: High; evidence url: https://cer.gov.au/document/cec-approved-solar-batteries-0; expires at: 2027-12-31; list data version: au-cer-battery-2026-08-20-b3f077cbe945; list retrieved at: 2026-08-27T04:30:11Z; listing status at validation: listed
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Australian approved-product source identity
2 changes to this record · 12 products changed in this update
Canonical identity
- Before
- AlphaESS Smile G3 S5 BAT-9.3S
- After
- AlphaESS Smile G3 S5 9.3 kWh
8 changes to this record · 78 products changed in this update
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.
Confidence
- Before
- Not previously recorded
- After
- high
State
- Before
- Not previously recorded
- After
- reviewed_absence
Evidence sources
- Before
- Not previously recorded
- After
- https://alphaesspartner.blob.core.windows.net/osc/osc/material202604220110437542700650557856.pdf
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.
Confidence
- Before
- Not previously recorded
- After
- high
Evidence sources
- Before
- Not previously recorded
- After
- https://alphaesspartner.blob.core.windows.net/osc/osc/material202604220110437542700650557856.pdf
State
- Before
- Not previously recorded
- After
- reviewed_absence
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.
- Core scorecard evidence checked
- DE market evidence checked
- US market evidence checked
- Australian certification source identity verified
- AU market evidence checked
- Plain-language warranty summary checked
- Series benchmark evidence checked
Scored by Solar Analytica Research
Further reading from Findings
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
Smile G3 S5 9.3 kWh scores 62, placing 45 of 74 in the Performance & Value class against a class average of 63.0. Its strongest scoring dimension is capacity & usability (88), above the class average of 83. Guarantee & Backbone scores 43, the lowest pillar for this product. The class average on guarantee & backbone is 54. Key specifications: LFP, 5 kW continuous output.