back to batteries

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.

52thof 60 in Performance & ValueBottom quarterclass average 64.0
Compare this batteryAsk Watt →

The assessment

How it scores, by category

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

Market position

52thof 60 in Performance & ValueBottom quarter
485876

Our reading

B2 HV + H2 scores 58, placing 52 of 60 in the Performance & Value class against a class average of 64.0. 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 49. Key specifications: LFP, 6.0 kW continuous output.

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.

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 2026-08-15

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

Evidence timeline

Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.

  1. Core scorecard evidence checked
  2. AU market evidence checked
  3. Plain-language warranty summary checked
  4. Australian certification source identity verified
  5. Series benchmark evidence checked

Evidence record (JSON)

Scored by Solar Analytica Research

Further reading from Signals

Stay across the benchmark.

New scorecards, score changes and market signals, published as they happen.