Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
Redback Technologies | RED-P1-BE21HV; 21 kWh nominal, 19.95 kWh usable, paired RED-H3-S10HV single-phase hybrid inverter
65/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Available in Australia · checked 2026-08-10
Buyer evidence: Ready (100% direct coverage).
AlphaESS | SMILE-G3-S5 with one SMILE-G3-BAT-10.1P; 9.6 kWh usable reference, 1-6 modules
68/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-22
Available in Australia · checked 2026-08-29
Buyer evidence: Ready (100% direct coverage).
| Measure | Hybrid Battery Max BE21HV | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | Hybrid Battery Max BE21HV | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Architecture | DC-coupled battery | All-in-one energy system |
| Published usable capacity range | 13.3–33.25 kWh | 9.6–57.6 kWh |
| Scored benchmark | 19.95 kWh | 9.6 kWh |
| Chemistry | LFP | LFP |
| Power | 9.99 kW | 5 kW |
| Round-trip | Not recorded | Not recorded |
| Cycle life | Not recorded | Not recorded |
| Evidence | Hybrid Battery Max BE21HV | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-10 | 2026-08-29 |
| Certifications | Clean Energy Council approved battery, certificate BAT-927, approved 27 March 2026, covering RED-P1-BE14HV, BE21HV, BE28HV and BE35HV, listed to Redback Energy Pty Ltd, expiry 31 December 2027., The paired RED-H3-S05HV, S06HV, S08HV and S10HV single-phase inverters are on the CER approved inverter list as RED-H3-S05HV to RED-H3-S10HV (AS4777-2 2020), listed to Redback Energy Pty Ltd, approved 26 February 2026, with expiry 26 February 2029. Redback's inverter data sheet (v1.1) and single-phase installation manual (v0.7) list AS/NZS 4777.2:2020 without an amendment reference, and no certificate number is printed on the CER list. | The exact BAT-10.1P datasheet lists IEC 62619, IEC 63056, IEC 62040 and UN 38.3; the SMILE-G3-S5 AU system datasheet lists AS 4777.2 and IEC 62109. |
| Warranty scope | Australia; Redback Energy Pty Ltd. The enclosure warranty (vJ501, effective 19 March 2026) names RED-P1-BE21HV and runs for the earlier of 10 years from installation or 11 years from manufacture (clause 4.1). The separate RED-P1-7000HV module warranty (vF112, effective 1 June 2026) gives ten years on the condition that the system stays connected to the internet through the monitoring system and five years if it is not (clauses 4.1 and 4.2), with degradation not exceeding 30% over ten years and a minimum cumulative throughput of 3.65 MWh per kWh usable capacity, whichever occurs later (clause 4.4). Both warranties are transferable only while the product stays at the original location and after the new owner registers with Redback, and both exclude intentionally off-grid installations. The module warranty prints ACN 605 542 541 for Redback Energy Pty Ltd, which the ABN Lookup record shows as Redback Operations Pty Ltd; that conflict is disclosed and not reconciled. | Australia; the 11 October 2024 warranty names SMILE-G3-S5 and BAT-10.1P with a ten-year term, 70% retained capacity and a 3.12 MWh/kWh throughput condition for eligible installations from 1 November 2024. |
| Warranty remedy | Repair or replacement, either onsite by a Redback or suitably qualified technician or offsite at an authorised Redback repair facility (vJ501 clause 5.1; vF112 clauses 5.1 to 5.3). The module warranty (vF112, clause 8.3, closing paragraphs) states that if a battery module is defective, the time value of the batteries is replaced, with fair value calculated on the basis of a linear depreciation over 10 years, and that if the product is no longer available Redback may replace it with a refurbished product, or a different product or parts with equivalent functions and performance. | Repair or replacement at AlphaESS's option. |
| Labour and reinstallation | Onsite or offsite repair labour is included in the stated remedy for an accepted claim; rejected claims may be invoiced. Relocation without prior written approval invalidates the warranty. | Clause 2 excludes travelling and accommodation costs of persons for on-site support and does not name labour as covered or excluded. The warranty requires a qualified installer to be available for exchange and re-commissioning (clause 3) and obliges the original installer to assist with replacement (clause 10); reimbursement of necessary and reasonably incurred costs of a valid claim may be claimed with documentary evidence (clauses 2 and 10). Removal and reinstallation are not promised. |
| Freight | Transport damage is excluded and unconditional freight reimbursement is not separately promised. | Replacement-parts freight is covered for an accepted claim. |
| Transfer and registration | Transfers at the original installation after the new owner registers with Redback; relocation requires prior written approval. The module warranty (vF112, clauses 4.1 and 4.2) gives ten years on the condition that the system stays internet-connected through the monitoring system, and five years if it is not. The enclosure warranty (vJ501) states no five-year step but excludes damage caused by failure to maintain a stable connection to the Redback cloud (clause 6.1(b)). | The warranty is non-transferable except where the products remain installed in a building, in which case it transfers to a later purchaser of that building. Serial registration before a claim, and installation by an SAA-accredited installer with a valid Alpha Installer ID, are required. |
| Grid/network approval evidence | Single-phase 230 V system listed against AS/NZS 4777.2:2020 Amd 2:2024. Redback publishes dynamic-export commissioning guides for SA Power Networks, Energy Queensland and the Victorian emergency backstop. Final network and installer approval remain project-specific. | The exact AU system is a 5 kW, 230 V single-phase hybrid under AS 4777.2. Current project approval and installer eligibility remain installation-specific. |
| Local product pathway | No separate local pathway recorded | No separate local pathway recorded |
| Buyer evidence | Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. | Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. |
| Safety notice | No model-specific notice recorded | No model-specific notice recorded |
| Review note | This record covers the single-phase Hybrid Battery Max reference configuration: RED-P1-BE21HV with a RED-H3-S10HV inverter. The three-phase RED-H3-T series and the separate G3 system are distinct product identities. Note that the RED-P1-7000HV module named in the module warranty (vF112) does not itself appear on either CEC list; only the BExxHV enclosures do. Redback's manufacturer declaration dated 23 September 2025 lists RED-H3-S10HV among the inverters compatible with RED-P1-BE21HV. The inverter warranty vG501 (effective 1 August 2025) prints the codes RED-P1-S05HV to RED-P1-S10HV rather than the RED-H3 codes used on the CER list and the inverter data sheet, so it is not joined to this identity. Redback states that its Brisbane customer support team is available 8am to 4pm Brisbane time, Monday to Friday (installation manual v0.7, page 3). Bounded load-control review, 5 October 2026: the exact single-phase HV manual documents surplus-triggered hot-water control through Smart Load Control. Compatible hardware/firmware and the supplied meter are required, plus an installer-provided load-rated relay or contactor. This does not authorise connecting hot water to backup: the manual excludes high-power loads including hot water from that circuit. Remote firmware updates are documented; a security-support lifetime remains unestablished. | AlphaESS's current 2026 Australian brochure lists SMILE-G3-S5/B5 with both BAT-10.1P and BAT-9.3S. The battery options coexist; neither is presented as the formal successor to the other. |
| Register: parts term | stated: Ten years from installation or eleven years from manufacture, whichever occurs first. External network adapters and meters are limited to two years. | Not in the structured register |
| Register: labour and service | conditional: Redback may provide onsite or offsite repair or replacement for an accepted claim. Rejected claims may be invoiced and no unrestricted third-party labour reimbursement is promised. | Not in the structured register |
| Register: transport and freight | not stated: Transport damage is excluded, but the instruments do not state an unconditional customer freight entitlement. | Not in the structured register |
| Register: registration | conditional: A stable cloud connection is required for the ten-year module term; without monitoring the stated module term is five years. | Not in the structured register |
| Register: transferability | conditional: Transfer is available at the original installation after new-owner registration. Relocation requires prior written approval. | Not in the structured register |
| Register: explicit unknowns | 3 retained | Not in the structured register |
| Latest reviewed Approval Watch event | No exact-identity event in reviewed history | No exact-identity event in reviewed history |
| Sources | Source 1Source 2Source 3Source 4Source 5Source 6Source 7Source 8Source 9Source 10Source 11 | Source 1Source 2Source 3Source 4Source 5Source 6 |
These checks sit beside the benchmark score. They are site, tariff and contract questions that no product score can settle.
Ask for every model number to appear on the quote and order. The Clean Energy Council product lists are live: STC creation requires listed products at installation, and network requirements may also depend on current approval.
Have the retailer state the supply phase, inverter connection limit, export limit and any export-control cost. The local network connection agreement, not a generic datasheet, determines those settings. See the Australian Government's connection guidance.
Ask which bills or interval data, tariff, feed-in rate, export limit and future loads support the savings and payback claim. Self-consumed electricity and tariff timing usually matter more than a headline feed-in rate. See the system sizing and battery savings guidance.
Define the usable energy, output power, backed-up circuits and outage behaviour. Confirm whether VPP participation, an internet connection, or an additional controller changes the configuration, reserve level, warranty or support path.
Keep the retailer, installer, manufacturer warranty and escalation path in the contract. Australian Consumer Law guarantees apply separately from any manufacturer warranty; where one business supplied both product and installation, it is generally responsible for the remedy. See the ACCC guidance.
A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.
Both products are scored in the Performance & Value class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.