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
- 27.89 kWh
- Phase
- Not recorded
- Backup boundary
- Installation-specific
Usable capacity
99% of this battery’s nominal capacity is usable, 27.89 kWh in the scored configuration.27.89 kWh usableScored configuration: L28.
The remaining 1% 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 source 1Depth-of-discharge source 2Verification & 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 and displayed range remain inside the exact source and market boundary recorded by the 13 August 2026 sprint. Scored model: L28 · checked 2026-08-13. Evidence.
Sources & references · checked 2026-08-13
Strong evidence coverage
12 of 12 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. Exact L28 datasheet modified 2026-07-10 and published through manufacturer download 3026416; L28 user manual created 2026-07-22 and published through download 3026415; Australian warranty created 2026-07-23 and published through download 3026417; Approval Watch source au-cec-battery-2026-08-10-155701760bf5
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 3 more
- Usable energy / DoD (%)Manufacturer ↗
- Usable energy / DoD (%)Manufacturer ↗
- Round-trip efficiency (%)Manufacturer ↗
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- AU market evidence checked
- Australian certification source identity verified
- Series benchmark evidence checked
- Plain-language warranty summary checked
Australian approval history
Exact source-register changes recorded since monitoring began. These events do not change the global product score.
- The approved-product source recorded an addition. Exact source model: L28. View change record
A register event does not establish availability, warranty coverage, compatibility, network acceptance, or installation suitability.
Scored by Solar Analytica Research
Further reading from Signals
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
L28 scores 57, placing 52 of 60 in the Performance & Value class against a class average of 64.0. Its strongest scoring dimension is power & efficiency (71), above the class average of 68. Energy Ecosystem scores 40, the lowest pillar for this product. The class average on energy ecosystem is 49. Key specifications: LFP, 10.0 kW continuous output.