The assessment
How it scores, by category
Market position
The data
All-in-one energy system
Presents storage and power conversion as one integrated product or product platform.
- Product role
- Battery modules, inverter functions and controls are packaged as one purchasing architecture.
- Published range
- 9.6–57.6 kWh
- Phase
- Single phase
- 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
95% of this battery’s nominal capacity is usable, 9.6 kWh in the scored configuration.9.6 kWh usableScored configuration: BW-INV-SPH5K with one BW-BAT-10.1P. Published range 9.6–57.6 kWh.
The remaining 5% stays in the pack as reserve; the home never draws it.
Nominal capacity is not stated here. The usable kWh and the depth-of-discharge percentage are sourced separately, at times from different documents and different module counts, so dividing one by the other would produce a nominal figure no manufacturer published.
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.
Blackout protection
68 / 100#31 of 90 batteriesWhole-home, seamless (<20ms)
The blackout score is a standalone benchmark of outage resilience only - it re-weights sourced specs already scored in this product’s pillars (backup tier, switchover, surge strength, backup power, off-grid recharge) and never affects the overall score. Dots show the full battery fleet; the marker is this product.
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. The score uses one 9.6 kWh usable BW-BAT-10.1P module rather than rewarding the largest supported six-module stack. Scored model: BW-INV-SPH5K with one BW-BAT-10.1P · checked 2026-08-01. Evidence.
Sources & references · checked 2026-09-04
Strong evidence coverage
21 of 21 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. Bytewatt Australian BW-ESS 3.6-5 kW with BW-BAT-10.1P datasheet and AU/NZ warranty A7 reviewed 2026-08-01. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged. T6 United States first-market overlay review 2026-09-04: official United States catalogues recorded; Australian and German overlays and scores unchanged.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 2 more
- Archived copy of the primary sourcePDF ↗
- Firmware & security disclosureManufacturer ↗
Product record history
2 changes to this record · 1 product changed in this update
AU Support Note
- Before
- The scored reference is Bytewatt's blue-enclosure BW-INV-SPH5K and BW-BAT-10.1P system. It is separate from VoltX vBox and from NeoVolt's white-enclosure BW-BAT-9.6P platform.
- After
- The scored reference is Bytewatt's blue-enclosure BW-INV-SPH5K and BW-BAT-10.1P system. It is separate from VoltX vBox and from NeoVolt's white-enclosure BW-BAT-9.6P platform. The two halves carry different Australian listing states in the 6 September 2026 exports. The approved-inverter export lists the paired BW-INV-SPH5K with an expiry date of 18 November 2026. The exact BW-BAT-10.1P row's expiry date of 5 June 2026 has passed and the approved-battery export carries no renewed row. The scored BW-BAT-10.1P is not a current Australian approved battery. The exact Australian system datasheet and AU/NZ warranty reviewed 1 August 2026 remain the cited evidence for this record. An expired approval row does not by itself establish a discontinuation or a legacy state for the exact system.
AU Certifications
- Before
- The exact Australian system datasheet publishes AS/NZS 4777.2:2020, IEC/EN 62109-1/-2 and IEC 62619:2022.
- After
- The 6 September 2026 CER approved-battery export, retrieved 7 September 2026, retains exact BW-BAT-10.1P and its II, III, IV, V and VI variants under manufacturer Suzhou Bytewatt Technology Co Ltd. Those rows carry an approved date of 7 March 2023 and an expiry date of 5 June 2026. That expiry date has passed and the export carries no renewed BW-BAT-10.1P row. These rows do not establish eligibility for a new installation of the exact battery after the expiry date. Cited source_version au-cer-battery-2026-09-06-c074023b3804.; The 6 September 2026 CER approved-inverter export, retrieved the same day, lists the paired BW-INV-SPH5K (AS4777-2 2020) under the same manufacturer. That row carries an approved date of 22 May 2023 and an expiry date of 18 November 2026. The BW-BAT-9.6P and BW-BAT-4.8S rows in the battery export are separate identities and are not transferred. SMILE-BAT-10.1P and SMILE-G3-BAT-10.1P are listed to Alpha ESS Co Ltd, a different manufacturer, and are not transferred. Cited source_version au-cer-inverter-2026-09-06-733db02cccc8.; The exact Australian system datasheet publishes AS/NZS 4777.2:2020, IEC/EN 62109-1/-2 and IEC 62619:2022.
2 changes to this record · 17 products changed in this update
Source revision
- Current text
- Bytewatt Australian BW-ESS 3.6-5 kW with BW-BAT-10.1P datasheet and AU/NZ warranty A7 reviewed 2026-08-01. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged. T6 United States first-market overlay review 2026-09-04: official United States catalogues recorded; Australian and German overlays and scores unchanged.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Primary datasheetUS Support Note
- Before
- neovoltess.com returns HTTP 403. No United States catalogue naming BW-INV-SPH5K with BW-BAT-10.1P was retrieved. Held is not unavailable. TPH10K is a different identity.
- After
- neovoltess.com returns a Cloudflare HTTP 403 challenge. No United States catalogue naming BW-INV-SPH5K with BW-BAT-10.1P was retrieved. Held is not unavailable. TPH10K is a different identity.
9 changes to this record · 152 products changed in this update
DE Support Note
- Before
- Not previously recorded
- After
- neovoltess.com returns HTTP 403. No German catalogue was retrieved. Held is not unavailable.
US Support Note
- Before
- Not previously recorded
- After
- neovoltess.com returns HTTP 403. No United States catalogue naming BW-INV-SPH5K with BW-BAT-10.1P was retrieved. Held is not unavailable. TPH10K is a different identity.
Source revision
- Before
- Bytewatt Australian BW-ESS 3.6-5 kW with BW-BAT-10.1P datasheet and AU/NZ warranty A7 reviewed 2026-08-01
- After
- Bytewatt Australian BW-ESS 3.6-5 kW with BW-BAT-10.1P datasheet and AU/NZ warranty A7 reviewed 2026-08-01. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
1 change to this record · 147 products changed in this update
Cc4153Aa433B
- Current text
- accepted at: 2026-08-09; category: battery; certification model: BW-BAT-10.1P; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: neovolt-single-phase-5-10-1p-au; source key: data/batteries/neovolt_sph5k_10_1p_au.json; source manufacturer name: Suzhou Bytewatt Technology Co Ltd; validation: approved at: 2023-03-07; candidate model: BW-BAT-10.1P; data confidence: High; evidence url: https://cer.gov.au/document/cec-approved-solar-batteries-0; expires at: 2026-06-05; 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
21 changes to this record · 78 products changed in this update
Round-trip efficiency (%): Evidence sources
- Before
- https://www.neovoltess.com/upload/down/1738999313441547.pdf
- After
- No longer recorded
Value
- Before
- Not previously recorded
- After
- The exact Australian integrated-system datasheet publishes 90% maximum round-trip efficiency.
State
- Before
- Not previously recorded
- After
- reviewed_absence
Value
- Before
- Not previously recorded
- After
- Reviewed 2026-08-25: The exact Australian integrated-system datasheet publishes 90% maximum round-trip efficiency. No battery/DC round-trip value is substituted into the score.
State
- Before
- Not previously recorded
- After
- reviewed_absence
Evidence sources
- Before
- Not previously recorded
- After
- https://www.neovoltess.com/upload/down/1738999313441547.pdf
Value
- Before
- Not previously recorded
- After
- Reviewed 2026-08-25: The exact datasheet publishes an 8,000-cycle headline without a retained-capacity endpoint or complete test conditions. No cycles-to-70% value is substituted into the score.
Evidence sources
- Before
- Not previously recorded
- After
- https://www.neovoltess.com/upload/down/1738999313441547.pdf
Evidence sources
- Before
- Not previously recorded
- After
- https://www.neovoltess.com/upload/down/1738999313441547.pdf
Evidence sources
- Before
- Not previously recorded
- After
- https://www.neovoltess.com/upload/down/1738999313441547.pdf
Value
- Before
- Not previously recorded
- After
- The exact datasheet publishes an 8,000-cycle headline without a retained-capacity endpoint or complete test conditions.
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
- US market evidence checked
- DE 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
Single Phase 5 scores 63, placing 40 of 76 in the Performance & Value class against a class average of 63.0. Its strongest scoring dimension is capacity & usability (81). Guarantee & Backbone scores 43, the lowest pillar for this product. The class average on guarantee & backbone is 55. Key specifications: LFP, 5.0 kW continuous output.
Dietreich Farquharson · review.solar