Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
sonnen | sonnenBatterie Evo; battery benchmark 11 kWh nominal / 10 kWh usable
58/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Available in Australia · checked 2026-10-07
Buyer evidence: Ready (100% direct coverage).
Enphase | IQBATTERY-5P-3P-INT; 1P models 1.65 / 2.50 / 3.00 / 3.68 / 3.84; 3P models 1.84 / 2.50 / 3.00 / 3.68 / 3.84
68/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-30
Available in Australia · checked 2026-10-06
Buyer evidence: Ready (100% direct coverage).
| Measure | sonnenBatterie Evo | IQ Battery 5P FlexPhase |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | sonnenBatterie Evo | IQ Battery 5P FlexPhase |
|---|---|---|
| Architecture | All-in-one energy system | AC-coupled battery |
| Published usable capacity range | 10 kWh | 5 kWh |
| Chemistry | LFP | LFP |
| Power | Not recorded | Not recorded |
| Round-trip | Not recorded | 96 % |
| Cycle life | Not recorded | Not recorded |
| Evidence | sonnenBatterie Evo | IQ Battery 5P FlexPhase |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-10-07 | 2026-10-06 |
| Certifications | The CER battery list (export last modified 24 September 2026, live file re-read 7 October 2026) lists sonnenBatterie Evo (AS4777-2 2020) at 11 kWh nominal and 10 kWh usable, approved 27 June 2022 and expiring 16 July 2027., The exact datasheet lists AS/NZS 4777.2, IEC 62619, IEC 62040-1/-2, IEC 62477-1, and IEC 62109-1/-2. | The CER battery and inverter exports of 24 September 2026 list ten exact FlexPhase power and phase identities, each approved 31 July 2025 and expiring 31 December 2027., The exact AU/NZ datasheet lists AS/NZS 4777.2:2020 + A2, AS IEC 62040.1, EN IEC 62109-1/-2, AS IEC 62619, and UN 38.3, and states UL 9540A evaluation. |
| Warranty scope | sonnen Australia Pty Ltd provides the earlier-of 10-year or 10,000-complete-cycle warranty and an 80% capacity floor. | Australia and New Zealand; Enphase Energy, Inc. provides the earlier-of 15-year or 6,000-cycle warranty, with 70% capacity at year 10 and 60% at year 15. |
| Warranty remedy | Repair or replacement with new or refurbished product at sonnen's discretion, subject to Australian Consumer Law. | At Enphase’s discretion, repair or replacement, or a proportionate set-off or refund based on current market value when the defect is notified, as determined by Enphase. Repair or replacement may use new or refurbished products. |
| Labour and reinstallation | Covered transport, travel, and labour are capped together at AUD 200. No uncapped removal and reinstallation entitlement is stated. | The limited warranty does not cover costs of removing, installing or troubleshooting the owner's electrical systems (section 7f). Section 3a states that Australian Consumer Law guarantees cannot be excluded. Not included in the limited warranty. A separate installer labour reimbursement program (ING-00060-1.0-EN, August 2025) pays fixed amounts and has its own eligibility conditions; it names IQ Battery 5P generally and does not name the FlexPhase SKU. |
| Freight | Covered transport, travel, and labour are capped together at AUD 200. | Eligible RMA return and repaired or replacement-product shipping are covered under the published process. |
| Transfer and registration | Prior written sonnen consent is required; consent will not be unreasonably withheld. Commissioning evidence, authorised installation, internet connectivity, and remote software updates are warranty conditions. | Conditional same-site transfer with form and fee within 30 days. Activation, authorised supply, and the governing registration and connectivity conditions apply. |
| Grid/network approval evidence | Battery-module identity only. The separate Evo inverter is the current 5 kW single-phase regulator identity. Site and network approval remain installation-specific. | The exact family supports commissioned single-phase or three-phase operation. Regulator listing does not establish site, network, islanding, or installation approval. |
| 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 | sonnen publishes a live Australian quote path, authorised-partner route, technical library, and local Mawson Lakes service contact. | Enphase Energy Aust. Pty/Ltd. is the named Australian importer. The Australian product page publishes local store and telephone support. |
| Register: parts term | stated: Ten-year manufacturer's warranty, subject to the earlier cycle condition. | stated: Fifteen years from activation or the warranty start defined by the instrument, subject to the earlier cycle limit. |
| Register: labour and service | conditional: Covered labour, travel and transport are capped together at AUD 200. | excluded: Removal, installation and troubleshooting of the surrounding electrical system are not included in the limited warranty. |
| Register: transport and freight | conditional: Covered transport, travel and labour share a combined AUD 200 cap. | conditional: Enphase supplies a prepaid eligible return label and ships an eligible repaired or replacement product. Unapproved returns and shipping damage are excluded. |
| Register: registration | conditional: Authorised installation, commissioning evidence, internet connectivity and remote software updates are warranty conditions. | conditional: Activation and authorised supply conditions apply. Continuous internet should be maintained for software updates and remote diagnostics. |
| Register: transferability | conditional: Transfer requires prior written sonnen consent, which the document says will not be unreasonably withheld. | conditional: Transfer is limited to the same original installation location and requires the form and fee within 30 days. |
| Register: explicit unknowns | 3 retained | 3 retained |
| 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 6 | 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 Premium Integrated class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.