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#22 of 78 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.
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.
Redback Technologies Hybrid Battery Max BE21HV 19.95 kWh · Home battery
Australian evidence checked 2026-08-10.
Covered8 sources
Australian warranty scope: Australia; Redback Energy Pty Ltd provides ten years while a stable cloud connection is maintained and five years without monitoring. Battery performance is 70% retained usable capacity with 3.65 MWh per kWh usable, and the product warranty is transferable only at the original site after new-owner registration.
Structured claim terms: Recorded.
- Term
- 10 yr productStated in the structured comparison
- Product remedy
- CoveredRepair or replacement, either onsite by a Redback or qualified technician or offsite at an authorised facility.
- Labour
- ConditionalOnsite or offsite repair labour is included in the stated remedy for an accepted claim; rejected claims may be invoiced.
- Freight
- Not coveredTransport damage is excluded and unconditional freight reimbursement is not separately promised.
- Removal and reinstallation
- ConditionalRelocation without prior written approval invalidates the warranty.
- Transferability
- ConditionalTransfers at the original installation after the new owner registers with Redback; relocation requires prior written approval.
- Registration and conditions
- ConditionalInternet monitoring is required for ten years; without it the term is five years.
Sources & references · checked 2026-08-10
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
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 2 more
- Archived copy of the primary sourcePDF ↗
- Financial strength & warranty backingManufacturer ↗
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots. No change to this product record has been published since the change ledger opened on 2026-08-16.
- Core scorecard 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 63 in the Performance & Value class against a class average of 63.4. 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.