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PLACEHOLDERNot a representation of the product
Performance & Value

B2 HV + H2

4.5–22.5 kWh · LFP · DC-coupled · Single-phase · Three-phase

SAJ

58/ 100

Good

Global

LFP5 kWh Modular

The verdict. In our Performance & Value class, SAJ B2 HV + H2 leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

64thof 76 in Performance & ValueBottom quarterclass average 63.0
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The assessment

How it scores, by category

Capacity & Usability85
Power & Efficiency54
Longevity (verified)53
Safety & Chemistry73
Guarantee & Backbone43
Energy Ecosystem40

Market position

64thof 76 in Performance & ValueBottom quarter
485876

Our reading

B2 HV + H2 scores 58, placing 64 of 76 in the Performance & Value class against a class average of 63.0. 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 47. Key specifications: LFP, 6.0 kW continuous output.

Dietreich Farquharson · review.solar

The data

Chemistry
LFP
Power
6.0kW
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
4.5–22.5 kWh
Phase
Single and three phase
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.

01Backup1 published · 0 reviewed absence · 0 not applicable · 3 open02Digital control2 published · 6 reviewed absence · 0 not applicable · 4 open03Battery behaviour7 published · 5 reviewed absence · 0 not applicable · 6 open06Service pathway7 published · 1 reviewed absence · 0 not applicable · 0 open

Usable capacity

96% of this battery’s nominal capacity is usable, 9 kWh in the scored configuration.

9 kWh usableScored configuration: H2-6K-S2 + B2-10.0-HV5. Published range 4.5–22.5 kWh.

The remaining 4% 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 source
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 scored reference is the exact single-phase H2 and B2 combination, not HS2. Warranty retention and backup scope remain withheld. Scored model: H2-6K-S2 + B2-10.0-HV5 · checked 2026-08-05. Evidence.

Sources & references · checked 2026-08-31

Strong evidence coverage

12 of 12 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. 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.

Change ledger

Product record history

1 change to this record · 17 products changed in this update
  1. Record updated

    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
    Continuous power output (kW)AU market evidence+9 in JSON record
5 changes to this record · 61 products changed in this update
  1. Evidence added

    US Status

    Before
    Not previously recorded
    After
    unavailable
    US market evidenceUS market evidence+3 in JSON record
  2. Evidence added

    US Certifications

    Before
    Not previously recorded
    After
    US market evidenceUS market evidence+3 in JSON record
  3. Record updated

    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.
    Primary datasheet
  4. Evidence added

    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 market evidenceUS market evidence+3 in JSON record
  5. Evidence added

    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
    US market evidenceUS market evidence+3 in JSON record
10 changes to this record · 147 products changed in this update
  1. Record updated

    3E8035E64063

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-10.0-HV1; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-10.0-HV1; 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. Record updated

    84B940A666B2

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-25.0-HV1; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-25.0-HV1; 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
  3. Record updated

    558E4431A7Cd

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-20.0-HV1; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-20.0-HV1; 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
  4. Record updated

    5313D31Cd130

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-15.0-HV1; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-15.0-HV1; 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
  5. Record updated

    52497B6C368A

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-25.0-HV5; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-25.0-HV5; 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
  6. Record updated

    905400657412

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-20.0-HV5; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-20.0-HV5; 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
  7. Record updated

    Bf3Eb407D9Cc

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-15.0-HV5; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-15.0-HV5; 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
  8. Record updated

    D0A955F68A94

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-5.0-HV1; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-5.0-HV1; 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
  9. Record updated

    19F2D093F32E

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-5.0-HV5; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-5.0-HV5; 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
  10. Record updated

    C036642Bdd08

    Current text
    accepted at: 2026-08-09; category: battery; certification model: B2-10.0-HV5; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: saj-b2-hv-h2-au; source key: data/batteries/saj_b2_hv_h2_au.json; source manufacturer name: Guangzhou Sanjing Electric Co Ltd; validation: approved at: 2023-01-06; candidate model: B2-10.0-HV5; 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 · 9 products changed in this update
  1. Record updated

    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 market evidenceDE market evidence+4 in JSON record
  2. Record updated

    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.
    DE market evidenceDE market evidence+4 in JSON record
8 changes to this record · 78 products changed in this update
  1. Evidence added

    State

    Before
    Not previously recorded
    After
    reviewed_absence
    Continuous power output (kW)Modularity & scalability+3 in JSON record
  2. Evidence added

    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.
    Continuous power output (kW)Modularity & scalability+3 in JSON record
  3. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Continuous power output (kW)Modularity & scalability+3 in JSON record
  4. Evidence added

    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
    Continuous power output (kW)Modularity & scalability+3 in JSON record
  5. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Continuous power output (kW)Modularity & scalability+3 in JSON record
  6. Evidence added

    State

    Before
    Not previously recorded
    After
    reviewed_absence
    Continuous power output (kW)Modularity & scalability+3 in JSON record
  7. Evidence added

    Value

    Before
    Not previously recorded
    After
    The reviewed exact-family material does not publish a cycle-life result to 70% retained capacity.
    Continuous power output (kW)Modularity & scalability+3 in JSON record
  8. Evidence added

    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
    Modularity & scalabilityWarranty throughput+3 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. AU market evidence checked
  5. Plain-language warranty summary checked
  6. Australian certification source identity verified
  7. Series benchmark evidence checked

Evidence record (JSON)

Scored by Solar Analytica Research

Further reading from Findings

Australian buying guide

Place this scorecard beside the other Australian buyer-ready batteries, with quote questions and direct evidence coverage visible before you compare.

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