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
- 13.3–33.25 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, 19.95 kWh in the scored configuration.19.95 kWh usableScored configuration: RED-P1-BE21HV with RED-H3-S10HV. Published range 13.3–33.25 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
70 / 100#24 of 90 batteriesPartial (essential loads)
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. Scored on the single-phase reference configuration, not the largest three-phase stack; the published range describes BE14HV through BE35HV. Scored model: RED-P1-BE21HV with RED-H3-S10HV · checked 2026-08-03. Evidence.
Sources & references · checked 2026-09-01
Strong evidence coverage
28 of 28 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. RED-P1 and RED-H3 current AU regulator identity, warranty owner and lifecycle boundary re-audited 2026-08-07. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 2 more
- Archived copy of the primary sourcePDF ↗
- Financial strength & warranty backingManufacturer ↗
Product record history
9 changes to this record · 152 products changed in this update
Source revision
- Before
- RED-P1 and RED-H3 current AU regulator identity, warranty owner and lifecycle boundary re-audited 2026-08-07
- After
- RED-P1 and RED-H3 current AU regulator identity, warranty owner and lifecycle boundary re-audited 2026-08-07. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
DE Evidence sources
- Before
- Not previously recorded
- After
- https://www.redbacktech.com/; https://www.redbacktech.com/de/
DE Support Note
- Before
- Not previously recorded
- After
- www.redbacktech.com/de returns the same Australian integrator shell and does not name RED-P1-BE21HV. SH-G3-BE is not transferred.
US Evidence sources
- Before
- Not previously recorded
- After
- https://www.redbacktech.com/; https://www.redbacktech.com/us/
US Support Note
- Before
- Not previously recorded
- After
- redbacktech.com is an Australian integrator surface. www.redbacktech.com/us returns the same shell and does not name RED-P1-BE21HV. SH-G3-BE is a different enclosure and is not transferred.
1 change to this record · 147 products changed in this update
54E1325506Ef
- Current text
- accepted at: 2026-08-09; category: battery; certification model: RED-P1-BE21HV; jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: redback-hybrid-battery-max-be21hv-au; source key: data/batteries/redback_hv_be21hv_au.json; source manufacturer name: Redback Energy Pty Ltd; validation: approved at: 2026-03-27; candidate model: RED-P1-BE21HV; 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 changes to this record · 78 products changed in this update
Evidence sources
- Before
- Not previously recorded
- After
- https://digital.redbacktech.com/support-document/public/RED-P1-BE35HV%20series_Data%20Sheet_20260326.pdf
Evidence sources
- Before
- Not previously recorded
- After
- https://digital.redbacktech.com/support-document/public/RED-P1-BE35HV%20series_Data%20Sheet_20260326.pdf
Value
- Before
- Not previously recorded
- After
- Redback publishes no cycle-life figure for the RED-P1-7000HV module; no module-level data sheet exists in its public document library.
Value
- Before
- Not previously recorded
- After
- Redback publishes no round-trip efficiency figure for any current battery. The nearest published number is the separate G3 inverter's one-way maximum battery-to-load efficiency, which is not a round-trip measurement and is not credited here.
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
- DE market evidence checked
- US market evidence checked
- AU market evidence checked
- Plain-language warranty summary checked
- Australian certification source identity verified
- 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
Hybrid Battery Max BE21HV scores 64, placing 31 of 74 in the Performance & Value class against a class average of 63.0. Its strongest scoring dimension is capacity & usability (81). Energy Ecosystem (45) is the dimension with the most room to move. Key specifications: LFP, 9.99 kW continuous output.