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
- 4.5–22.5 kWh
- Phase
- Single and three 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
90% 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 10% 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 sourceVerification & 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.
Australian warranty decision
1 product record
Read the Australian warranty as a claim pathway: the headline term is separate from remedy, labour, freight, site work, transfer and registration conditions.
SAJ B2 HV + H2 9 kWh · Home battery
Australian evidence checked 2026-08-02.
Covered7 sources
Australian warranty scope: Ten years from commissioning for B2, subject to throughput, installation, reporting and compatible-inverter conditions. Retention is not credited because the governing wording conflicts.
Structured claim terms: Recorded.
- Term
- 10 yr productStated in the structured comparison
- Product remedy
- ConditionalSAJ may repair or replace an eligible defective product under the governing terms.
- Labour
- ConditionalUnconditional full-term labour coverage was not established and is not credited.
- Freight
- ConditionalUnconditional full-term transport coverage was not established and is not credited.
- Removal and reinstallation
- ConditionalUnconditional removal and reinstallation coverage was not established and is not credited.
- Transferability
- CoveredAn automatic transfer right was not established in the reviewed governing document.
- Registration and conditions
- Not statedThe product must be installed within the stated six-month window and a warning or failure must be reported within 30 days.
Sources & references · checked 2026-08-05
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.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 3 more
- Continuous power output (kW)Manufacturer ↗
- Grid-forming & backup tierManufacturer ↗
- VPP & grid services readinessManufacturer ↗
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Australian certification source identity verified
- Core scorecard evidence checked
- Series benchmark evidence checked
- AU market evidence checked
- Plain-language warranty summary checked
Scored by Solar Analytica Research
Further reading from Signals
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
B2 HV + H2 scores 57, placing 47 of 53 in the Performance & Value class against a class average of 64.4. Its strongest scoring dimension is capacity & usability (79). Energy Ecosystem scores 40, the lowest pillar for this product. The class average on energy ecosystem is 50. Key specifications: LFP, 6.0 kW continuous output.