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
- 12.86 kWh
- Phase
- Not recorded
- Backup boundary
- Installation-specific
Usable capacity
80% of this battery’s nominal capacity is usable, 12.86 kWh in the scored configuration.12.86 kWh usableScored configuration: WM48314AW single unit.
The remaining 20% 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 sourceBlackout protection
79 / 100#7 of 78 batteriesWhole-home (via hybrid inverter)
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. The score is fixed to the maker's recommended 12.86 kWh usable figure, not the 16 kWh nameplate the retail channel quotes as usable. Scored model: WM48314AW single unit · checked 2026-08-04. Evidence.
Sources & references · checked 2026-08-07
Strong evidence coverage
30 of 30 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. All Weather specification v1.0, warranty EG4-CMP-WR-BAT-314-2.1, current product and manual surfaces, and buyer-consequence boundaries reviewed 2026-08-07
- Sourced valuesData card →
- Archived copy of the primary sourcePDF ↗
Show 5 more
- Financial strength & warranty backingManufacturer ↗
- Manufacturing track recordManufacturer ↗
- Grid-forming & backup tierManufacturer ↗
- Open protocol & API maturityManufacturer ↗
- VPP & grid services readinessManufacturer ↗
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
- 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
WallMount 314Ah scores 71, placing 10 of 63 in the Performance & Value class against a class average of 63.4. Its strongest scoring dimension is power & efficiency (92), running 24.5 points above the class average on this dimension. Energy Ecosystem (56) is the dimension with the most room to move. Key specifications: LFP, 95% round-trip efficiency, 10.2 kW continuous output.