Battery-side energy and system limits. The Australian B2-10.0-HV5 specification publishes 10.0 kWh rated and 9.6 kWh usable battery energy. The supported B2 HV family spans 4.8–24.0 kWh usable across 5.0–25.0 kWh rated stacks. These are battery-side figures; AC-delivered energy and backup runtime depend on inverter losses, operating limits, reserves and loads. The scored reference remains H2-6K-S2 with B2-10.0-HV5. HV1 and HV5 identify different cell-supplier variants; their supplier identities remain unresolved here. SAJ's current Australian battery warranty states 60% of usable capacity at ten years or at the minimum throughput of 3.06 MWh per kWh usable, whichever comes first, as a single end-of-term guarantee with no midterm checkpoint; an earlier SAJ file named V4.0, still served but no longer listed on SAJ's Australian warranty page, prints conflicting wording. Whole-home backup is not established without installation-specific evidence. Source 1.Source 2.Source 3.
The assessment
How it scores, by category
Capacity & Usability85
Power & Efficiency54
Longevity (verified)56
Safety & Chemistry73
Guarantee & Backbone43
Energy Ecosystem40
Market position
64thof 76 in Performance & ValueBottom quarter
515876
The data
Chemistry
LFP
Power
6.0kW
Round-trip
Not recorded
Cycle life
Not recorded
Technology architecture
Architecture guide 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
- 4.8–24 kWh
- Phase
- Single and three phase
- Backup boundary
- Installation-specific
Decision evidence
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
01Backup1 published · 0 reviewed absence · 0 not applicable · 3 open02Digital control2 published · 6 reviewed absence · 0 not applicable · 4 open03Battery behaviour9 published · 5 reviewed absence · 0 not applicable · 4 open06Service pathway7 published · 1 reviewed absence · 0 not applicable · 0 open
Usable capacity
Stated depth of discharge: 96%. Published usable energy: 9.6 kWh in the scored configuration. These values may have different measurement conditions.9.6 kWh usableScored configuration: H2-6K-S2 + B2-10.0-HV5. Published range 4.8–24 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.
The same H2-6K-S2 + B2-10.0-HV5 reference remains scored. Australian manufacturer battery-side usable energy is9.6kWh for10.0kWh rated; usable family range4.8–24.0kWh for5.0–25.0kWh rated. This is not AC-delivered energy or guaranteed backup runtime. Warranty retention and unconditional backup scope remain withheld.
Usable capacity sourceDepth-of-discharge sourceCapacity guarantee: minimum retained at year 10
Rated capacity (reference)Guaranteed floor: 60.0% 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 B2 HV + H2 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. The same H2-6K-S2 + B2-10.0-HV5 reference remains scored. Australian manufacturer battery-side usable energy is9.6kWh for10.0kWh rated; usable family range4.8–24.0kWh for5.0–25.0kWh rated. This is not AC-delivered energy or guaranteed backup runtime. Warranty retention and unconditional backup scope remain withheld. Scored model: H2-6K-S2 + B2-10.0-HV5 · checked 2026-10-05. Evidence.
Sources & references · checked 2026-08-31
Strong evidence coverage
14 of 14 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
- OutputCertified or regulator-listed1 of 3 rows beyond claim
- EnduranceManufacturer claim5 rows
- SafetyCertified or regulator-listed1 of 5 rows beyond claim
- Warranty & backingManufacturer claim1 row
- FitNot assessed for batteries
- 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. How the evidence puzzle works
Record revision. Current Australian B2 HV V1.1 datasheet, H2 evidence, warranty and approval sources reviewed 2026-08-15. First-market US overlay review 2026-08-31: official United States catalogues recorded; Australian and German overlays and scores unchanged.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 7 more
- Archived copy of the primary sourcePDF ↗
- Continuous power output (kW)Manufacturer ↗
- Safety certificationManufacturer ↗
- Grid-forming & backup tierManufacturer ↗
- Grid-forming & backup tierManufacturer ↗
- VPP & grid services readinessManufacturer ↗
- VPP & grid services readinessManufacturer ↗
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.
- Verified reliabilityNot stated in reviewed documentsThe public documents reviewed for this record do not state this value. A published or independent source is requested.Offer a source
- Cell provenance & traceabilityNot stated in reviewed documentsThe public documents reviewed for this record do not state this value. A published or independent source is requested.Offer a source
Change ledger
Product record history
10 earlier entries recorded source rechecks rather than changes to the published figures, and are not listed here. Every entry remains in the evidence record.
1 change to this record · 43 products changed in this update
Safety certification: Evidence sources
- Before
- https://www.saj-electric.com/hubfs/Europe%20Region%204%20document/Datasheet/Residential/B2-%285-25K%29-%28HV1%2CHV5%29-datasheet-EN-BEU.pdf
- After
- https://cer.gov.au/document/cec-approved-solar-batteries-0; https://www.saj-electric.com/hubfs/Europe%20Region%204%20document/Datasheet/Residential/B2-%285-25K%29-%28HV1%2CHV5%29-datasheet-EN-BEU.pdf
8 changes to this record · 23 products changed in this update
End-of-warranty retained capacity (%): Evidence sources
- Before
- Not previously recorded
- After
- https://au.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0-2-1.pdf; https://www.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0.pdf
Warranty degradation guarantee: Evidence sources
- Before
- Not previously recorded
- After
- https://www.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0.pdf
Warranty degradation guarantee
- Before
- Not previously recorded
- After
- End-point only: minimum capacity at end of warranty term
End-of-warranty retained capacity (%)
- Before
- Not previously recorded
- After
- 60
Warranty degradation guarantee: Evidence status
- Before
- Not previously recorded
- After
- sourced
End-of-warranty retained capacity (%): Evidence status
- Before
- Not previously recorded
- After
- sourced
5 changes to this record · 9 products changed in this update
AU Evidence sources
- Before
- https://cleanenergycouncil.org.au/industry-programs/products-program/batteries; https://cleanenergycouncil.org.au/industry-programs/products-program/inverters; https://web.archive.org/web/20251127111412/https://www.saj-electric.com.au/solarenergy-detail/35; https://web.archive.org/web/20260512071538/https://www.saj-electric.com.au/solarenergy-detail/36; https://www.saj-electric.com.au/solarenergy-detail/35; https://www.saj-electric.com.au/solarenergy-detail/36; https://www.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0.pdf; https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/H2/H2-%283K-6K%29-S2/H2-%283K-6K%29-S2_User_Manual_en_AUS.pdf
- After
- https://au.saj-electric.com/en-au/b2-hv-series; https://au.saj-electric.com/en-au/h2-series; https://au.saj-electric.com/en-au/services-support-warranty; https://au.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Datasheet/AU%20B2/H2%26B2-Inverter-Compatibility-Statement-conv%281%29_Certificate_en_AU.pdf; https://au.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20%20Warranty%20Policy%20(AU)(1).pdf; https://au.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0-2-1.pdf; https://cer.gov.au/document/cec-approved-inverters-0; https://cer.gov.au/document/cec-approved-solar-batteries-0; https://cleanenergycouncil.org.au/industry-programs/products-program/batteries; https://cleanenergycouncil.org.au/industry-programs/products-program/inverters; https://web.archive.org/web/20251127111412/https://www.saj-electric.com.au/solarenergy-detail/35; https://web.archive.org/web/20260512071538/https://www.saj-electric.com.au/solarenergy-detail/36; https://www.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0.pdf; https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/H2/H2-%283K-6K%29-S2/H2-%283K-6K%29-S2_User_Manual_en_AUS.pdf
AU Certifications
- Current text
- The CER Approved Batteries export of 24 September 2026 lists B2-5.0, B2-10.0, B2-15.0, B2-20.0 and B2-25.0 in both HV1 and HV5 configurations (brand SAJ, series B2), each with a CEC approved date of 6 January 2023 and a CEC expiry date of 31 December 2027.; The CER Approved Inverters export of 24 September 2026 lists H2-3K-S2, H2-3.6K-S2, H2-4K-S2, H2-5K-S2 and H2-6K-S2 (AS4777-2 2020), each with an approval date of 7 September 2022 and an expiry date of 16 April 2029.; The CER Approved Inverters export of 24 September 2026 lists H2-5K-T2, H2-6K-T2, H2-8K-T2 and H2-10K-T2 (AS4777-2 2020), each with an approval date of 7 September 2022 and an expiry date of 14 April 2029.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Continuous power output (kW)AU market evidence+15 in JSON recordAU Warranty scope
- Before
- Ten years from commissioning for B2, subject to throughput, installation, reporting and compatible-inverter conditions. Retention is not credited because the governing wording conflicts.
- After
- SAJ's current Australian battery warranty, the file listed on SAJ's Australian warranty page, names the B2 Series and provides ten years from completion of commissioning, or 126 months from shipment if that is earlier, subject to throughput, installation, reporting and compatible-inverter conditions. It states that the battery retains 60% of usable battery capacity for ten years from commissioning or to a minimum throughput of 3.06 MWh per kWh usable, whichever comes first. An earlier SAJ file named V4.0, still served but no longer listed on that page, prints 'seventy percent (60%)'. SAJ's separate Australian inverter warranty names the H2 Series and provides ten years from commissioning or 126 months from shipment, whichever is earlier.
Evidence sources
- Before
- https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/B2/B2-5.0-%28HV1%2CHV5%29_User_Manual_en_AU.pdf
- After
- https://au.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0-2-1.pdf; https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/B2/B2-5.0-%28HV1%2CHV5%29_User_Manual_en_AU.pdf
Summary
- Current text
- The Australian B2-10.0-HV5 specification publishes 10.0 kWh rated and 9.6 kWh usable battery energy. The supported B2 HV family spans 4.8–24.0 kWh usable across 5.0–25.0 kWh rated stacks. These are battery-side figures; AC-delivered energy and backup runtime depend on inverter losses, operating limits, reserves and loads. The scored reference remains H2-6K-S2 with B2-10.0-HV5. HV1 and HV5 identify different cell-supplier variants; their supplier identities remain unresolved here. SAJ's current Australian battery warranty states 60% of usable capacity at ten years or at the minimum throughput of 3.06 MWh per kWh usable, whichever comes first, as a single end-of-term guarantee with no midterm checkpoint; an earlier SAJ file named V4.0, still served but no longer listed on SAJ's Australian warranty page, prints conflicting wording. Whole-home backup is not established without installation-specific evidence.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Primary datasheet
11 changes to this record · 1 product changed in this update
Note
- Before
- The scored reference is the exact single-phase H2 and B2 combination, not HS2. Warranty retention and backup scope remain withheld.
- After
- The same H2-6K-S2 + B2-10.0-HV5 reference remains scored. Australian manufacturer battery-side usable energy is9.6kWh for10.0kWh rated; usable family range4.8–24.0kWh for5.0–25.0kWh rated. This is not AC-delivered energy or guaranteed backup runtime. Warranty retention and unconditional backup scope remain withheld.
Ranges
- Current text
- checked: 2026-10-05; market: AU; max: 24; min: 4.8; range label: 4.8–24 kWh; source revision: SAJ Australian B2-(5.0-25.0)-(HV1,HV5) datasheet V1.1-20250609, PDF2 exact B2-10.0-HV5 column; source url: https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; unit: kWh
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Modularity & scalabilityPrimary datasheetSummary
- Before
- Not previously recorded
- After
- The Australian B2-10.0-HV5 specification publishes 10.0 kWh rated and 9.6 kWh usable battery energy. The supported B2 HV family spans 4.8–24.0 kWh usable across 5.0–25.0 kWh rated stacks. These are battery-side figures; AC-delivered energy and backup runtime depend on inverter losses, operating limits, reserves and loads. The scored reference remains H2-6K-S2 with B2-10.0-HV5. HV1 and HV5 identify different cell-supplier variants; their supplier identities remain unresolved here. Warranty retained-capacity wording remains held because the governing document conflicts, and whole-home backup is not established without installation-specific evidence.
Evidence sources
- Before
- Not previously recorded
- After
- https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/B2/B2-5.0-%28HV1%2CHV5%29_User_Manual_en_AU.pdf
1 change to this record · 17 products changed in this update
AU Evidence sources
- Before
- https://cleanenergycouncil.org.au/industry-programs/products-program/batteries; https://cleanenergycouncil.org.au/industry-programs/products-program/inverters; https://www.saj-electric.com.au/solarenergy-detail/35 (archived copy https://web.archive.org/web/20251127111412/https://www.saj-electric.com.au/solarenergy-detail/35); https://www.saj-electric.com.au/solarenergy-detail/36 (archived copy https://web.archive.org/web/20260512071538/https://www.saj-electric.com.au/solarenergy-detail/36); https://www.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0.pdf; https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/H2/H2-%283K-6K%29-S2/H2-%283K-6K%29-S2_User_Manual_en_AUS.pdf
- After
- https://cleanenergycouncil.org.au/industry-programs/products-program/batteries; https://cleanenergycouncil.org.au/industry-programs/products-program/inverters; https://web.archive.org/web/20251127111412/https://www.saj-electric.com.au/solarenergy-detail/35; https://web.archive.org/web/20260512071538/https://www.saj-electric.com.au/solarenergy-detail/36; https://www.saj-electric.com.au/solarenergy-detail/35; https://www.saj-electric.com.au/solarenergy-detail/36; https://www.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0.pdf; https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/H2/H2-%283K-6K%29-S2/H2-%283K-6K%29-S2_User_Manual_en_AUS.pdf
5 changes to this record · 61 products changed in this update
US Status
- Before
- Not previously recorded
- After
- unavailable
US Certifications
- Before
- Not previously recorded
- After
Source revision
- Before
- Current Australian B2 HV V1.1 datasheet, H2 evidence, warranty and approval sources reviewed 2026-08-15
- After
- Current Australian B2 HV V1.1 datasheet, H2 evidence, warranty and approval sources reviewed 2026-08-15. First-market US overlay review 2026-08-31: official United States catalogues recorded; Australian and German overlays and scores unchanged.
US Support Note
- Before
- Not previously recorded
- After
- SAJ United States lists B2 High Voltage US Version 7.3-21.9 kWh and H2 split-phase H2-(5K-11.4K)-LS3/LS4-US. Those SKUs are not B2-10.0-HV5 plus H2-6K-S2. B2-HV-US, H2-LS-US and HS2 are not transferred onto this Australian H2-S2 plus B2-HV5 record.
US Evidence sources
- Before
- Not previously recorded
- After
- https://us.saj-electric.com/en-us/b2-hv-us-version-series; https://us.saj-electric.com/en-us/h2-hv-split-phase-series; https://us.saj-electric.com/en-us/residential-battery; https://us.saj-electric.com/hubfs/Guides%20and%20Manuals/H2/H2-(5K-11.4K)-(LS3,LS4)-US/H2-(5K-11.4K)-(LS3%2CLS4)-US_User_Manual_en_US.pdf; https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf
2 changes to this record · 9 products changed in this update
DE Evidence sources
- Before
- https://de.saj-electric.com/de-de/residential-battery; https://de.saj-electric.com/de-de/services-support-download; https://de.saj-electric.com/hubfs/crm-properties-file-values/SAJ_Limited_Warranty_for_Batteries_energy_storage_devices_EU.pdf; https://de.saj-electric.com/hubfs/crm-properties-file-values/SAJ_Warranty_Policy_EU.pdf
- After
- https://de.saj-electric.com/de-de/residential-battery; https://de.saj-electric.com/de-de/services-support-download; https://de.saj-electric.com/hubfs/crm-properties-file-values/SAJ_Limited_Warranty_for_Batteries_energy_storage_devices_EU.pdf; https://de.saj-electric.com/hubfs/crm-properties-file-values/SAJ_Warranty_Policy_EU.pdf; https://www.saj-electric.com/hubfs/B2-%285.0-25.0%29-%28HV1%2CHV5%29_datasheet_en_AU.pdf; https://www.saj-electric.com/hubfs/Global/products/Residential/EU%20Declaration%20of%20Confirmity/EU%20Declaration%20of%20Conformity-H2.pdf
DE Certifications
- Before
- After
- SAJ's exact B2 datasheet lists IEC 62619 for cell and pack, EN 62477-1, EN 61000-6-1/-2/-3/-4 and UN 38.3 for the B2-HV1/HV5 battery family. The H2 EU declaration separately names H2-6K-S2 under VDE-AR-N 4105:2018-11 and DIN VDE V 0124-100:2020-06. These are component-level findings, not a pairing claim.
8 changes to this record · 78 products changed in this update
State
- Before
- Not previously recorded
- After
- reviewed_absence
Value
- Before
- Not previously recorded
- After
- No exact-system round-trip efficiency for H2-6K-S2 with B2-10.0-HV5 is published in the reviewed evidence.
Confidence
- Before
- Not previously recorded
- After
- high
Evidence sources
- Before
- Not previously recorded
- After
- https://www.saj-electric.com/hubfs/Europe%20Region%204%20document/Datasheet/Residential/B2-%285-25K%29-%28HV1%2CHV5%29-datasheet-EN-BEU.pdf; https://www.saj-electric.com/hubfs/Guides%20and%20Manuals/H2/H2-%283K-6K%29-S2/H2-%283K-6K%29-S2_User_Manual_en_AUS.pdf
Confidence
- Before
- Not previously recorded
- After
- high
State
- Before
- Not previously recorded
- After
- reviewed_absence
Value
- Before
- Not previously recorded
- After
- The reviewed exact-family material does not publish a cycle-life result to 70% retained capacity.
Evidence sources
- Before
- Not previously recorded
- After
- https://www.saj-electric.com/hubfs/Australia/AU%20Service%20and%20Support/AU%20Download%20Center/AU%20Warranty/SAJ%20limited%20warranty%20for%20batteries%20-AU%20V4.0.pdf; https://www.saj-electric.com/hubfs/Europe%20Region%204%20document/Datasheet/Residential/B2-%285-25K%29-%28HV1%2CHV5%29-datasheet-EN-BEU.pdf
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.
- AU market evidence checked
- Plain-language warranty summary checked
- Series benchmark evidence checked
- Core scorecard evidence checked
- US market evidence checked
- DE market evidence checked
- Australian certification source identity verified
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
B2 HV + H2 scores 58, placing 64 of 76 in the Performance & Value class against a class average of 63.6. Its strongest scoring dimension is capacity & usability (85), above the class average of 84. Energy Ecosystem scores 40, the lowest pillar for this product. The class average on energy ecosystem is 48. Key specifications: LFP, 6.0 kW continuous output.
Dietreich Farquharson · review.solar