The assessment
How it scores, by category
Market position
The data
All-in-one energy system
Presents storage and power conversion as one integrated product or product platform.
- Product role
- Battery modules, inverter functions and controls are packaged as one purchasing architecture.
- Published range
- 7.16–25.04 kWh
- Phase
- Single phase
- Backup boundary
- Installation-specific
Usable capacity
90% of this battery’s nominal capacity is usable, 7.16 kWh in the scored configuration.7.16 kWh usableScored configuration: US1H-3.8-EQL2 with EQ4000-AL2. Published range 7.16–25.04 kWh.
The remaining 10% 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 12.5
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.
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 score uses the smallest exact US PowerQ configuration. The 7.16-25.04 kWh displayed range is usable energy rounded to two decimals from the published 7.95-27.82 kWh nominal range at 90% DoD. Scored model: US1H-3.8-EQL2 with EQ4000-AL2 · checked 2026-07-27. Evidence.
Sources & references · checked 2026-08-07
Strong evidence coverage
24 of 25 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. PowerQ US identity and separate AU EQ4800/CQ7 lifecycle boundary re-audited 2026-08-07
- Sourced valuesData card →
- Warranty summary12.5-year product warranty →
Show 5 more
- Archived copy of the primary sourcePDF ↗
- Grid-forming & backup tierManufacturer ↗
- Firmware & security disclosureManufacturer ↗
- Financial strength & warranty backingManufacturer ↗
- Smart home & IoT depthManufacturer ↗
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
- US market evidence checked
- 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
PowerQ EQ4000 scores 66, placing 22 of 63 in the Performance & Value class against a class average of 63.4. Its strongest scoring dimension is capacity & usability (84), above the class average of 83. Energy Ecosystem scores 43, the lowest pillar for this product. The class average on energy ecosystem is 48. Key specifications: LFP, 95% round-trip efficiency, 3.8 kW continuous output.