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Premium Integrated

aPower 2

15 kWh · LFP · AC-coupled

FranklinWHReleased 2023

73/ 100

Very good

Global

LFP100% UsableHigh Power 10kW+15yr Warranty

The verdict. In our Premium Integrated class, FranklinWH aPower 2 leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

6thof 7 in Premium IntegratedBottom quarterclass average 76.3
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The assessment

How it scores, by category

Capacity & Usability96
Power & Efficiency86
Longevity (verified)64
Safety & Chemistry78
Guarantee & Backbone55
Energy Ecosystem64

Market position

6thof 7 in Premium IntegratedBottom quarter
697382

Our reading

aPower 2 scores 73, placing 6 of 7 in the Premium Integrated class against a class average of 76.3. Its strongest scoring dimension is capacity & usability (96), above the class average of 93. Guarantee & Backbone scores 55, the lowest pillar for this product. The class average on guarantee & backbone is 65. Key specifications: LFP, 90% round-trip efficiency, 10 kW continuous output.

The data

Chemistry
LFP
Power
10kW
Round-trip
90%
Cycle life
Not recorded

Capacity guarantee: minimum retained at year 12

15.0 kWhfull10.5at yr 12
60708090100Rated capacity 100%Guaranteed floor 70.0%Typical 10yr70.0%0yr5yr10yr12yr
Rated capacity (reference)Guaranteed floor: 70.0% at yr 12Typical battery warranty term: 10 yr

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.

Blackout protection

83 / 100#4 of 32 batteries
fleet low 46median 68fleet high 92
No backupGrid-forming

Whole-home (via hybrid inverter)

Continuous power
10kW
Surge / motor-start
Motor-start rated (LRA)
Off-grid solar recharge
Yes, documented
AC terminal protection
Not specified

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.

Before you buy

Two things to check

Local positionUse a market view to check local availability, approvals and warranty scope.

Ask the installer: What usable capacity, backup power and warranted operating conditions will the installed aPower 2 configuration deliver?

Verification & sources

Market context

Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.

Benchmark anchor. Scored model: aPower 2 (APR-10K15V2-US) · checked 2026-07-15. Evidence.

Sources & references · checked 2026-07-15

Moderate evidence coverage

16 of 29 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.

Help strengthen this record

These are published evidence gaps, not private submissions. A source is reviewed under the same methodology whether it comes from a reader, installer or manufacturer.

View the open evidence register

Evidence timeline

Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.

  1. Core scorecard evidence checked
  2. Series benchmark source checked
  3. US market evidence checked
  4. AU market evidence checked
  5. Plain-language warranty summary checked

Scored by Solar Analytica Research

Further reading from Signals

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New scorecards, score changes and market signals, published as they happen.