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Premium Integrated

aPower 2

15 kWh · LFP · AC-coupled

FranklinWHReleased 2023

71/ 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.

4thof 13 in Premium IntegratedTop quarterclass average 65.1
Compare this battery →Ask Watt →

The assessment

How it scores, by category

Capacity & Usability88
Power & Efficiency78
Longevity (verified)74
Safety & Chemistry78
Guarantee & Backbone43
Energy Ecosystem68

Market position

4thof 13 in Premium IntegratedTop quarter
517176

Our reading

aPower 2 scores 71, placing 4 of 13 in the Premium Integrated class against a class average of 65.1. Its strongest scoring dimension is capacity & usability (88), running 12.8 points above the class average on this dimension. Guarantee & Backbone scores 43, the lowest pillar for this product. The class average on guarantee & backbone is 60. Key specifications: LFP, 10 kW continuous output.

Dietreich Farquharson · review.solar

The data

Chemistry
LFP
Power
10kW
Round-trip
Not recorded
Cycle life
Not recorded
Technology architecture

AC-coupled battery

Architecture guide

Includes battery-side power conversion and connects on the household AC side.

Product role
The battery product includes its own conversion stage, while site isolation and backup controls may remain separate.
Published range
15 kWh
Phase
Not recorded
Backup boundary
Installation-specific
Architecture describes the product boundary. It is not a system design or an equipment-pairing decision.

Usable capacity

Stated depth of discharge: 100%. Published usable energy: 15 kWh in the scored configuration. These values may have different measurement conditions.

15 kWh usableScored configuration: aPower 2 (APR-10K15V2-US).

The stated depth of discharge and published usable energy can have different test conditions or configuration limits. They do not by themselves establish nominal capacity or a reserve that is always inaccessible. Delivered AC energy and runtime also depend on the inverter, settings and loads.

Usable capacity sourceDepth-of-discharge source

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

100 / 100#1 of 90 batteries
fleet low 40median 64fleet high 100
No backupGrid-forming

Grid-forming (black-start)

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
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWhat usable capacity, backup power and warranted operating conditions will the installed aPower 2 configuration deliver?

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. Scored model: aPower 2 (APR-10K15V2-US) · checked 2026-08-29. Evidence.

Sources & references · checked 2026-09-22

Strong evidence coverage

25 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.

How far the evidence reaches

1 of 4 questions with rows in the rings reach beyond manufacturer claim; none is measured by review.solar.123456
  1. OutputManufacturer claim3 rows in the rings2 design facts beside the rings
  2. EnduranceManufacturer claim1 row in the rings4 warranty terms and 1 design fact beside the rings
  3. SafetyCertified or regulator-listed1 of 5 rows in the rings beyond claim1 design fact beside the rings
  4. BackingWarranty terms: the maker's commitment1 warranty term beside the rings
  5. FitManufacturer claim3 rows in the rings4 design facts beside the rings
  6. FootprintNot assessed for batteries

Rings, outside in: manufacturer claim, certified or regulator-listed, third-party source. The centre is review.solar's own measurement, empty for every product today. Warranty terms and design facts that rest on the maker's own word are counted beside the rings; a reviewed absence, or one that reaches beyond the maker's claim, stays in them. How the evidence puzzle works

Record revision. aPower 2 data sheet, May 2026 governing warranty, July 2026 regional schedule, system manual and buyer-consequence boundaries reviewed 2026-08-07. Official Australian due-soon freshness recheck 2026-08-29. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing Australian and United States overlays and scores unchanged. 70% end-point retention joined from the May 2026 end-user warranty on 2026-09-20.

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
Change ledger

Product record history

2 earlier entries recorded source rechecks rather than changes to the published figures, and are not listed here. Every entry remains in the evidence record.

1 change to this record · 2 products changed in this update
  1. Record updated

    Safety certification: Evidence sources

    Before
    https://www.franklinwh.com/document/apower-2-datasheet; https://www.franklinwh.com/document/ul-9540-a-report-summary-and-installation-guidance-for-apower-2
    After
    https://www.franklinwh.com/document/apower-2-datasheet; https://www.franklinwh.com/document/download/ca_apower-2-datasheet; https://www.franklinwh.com/document/download/ul-9540; https://www.franklinwh.com/document/ul-9540-a-report-summary-and-installation-guidance-for-apower-2
    Safety certificationSafety certification+2 in JSON record
3 changes to this record · 3 products changed in this update
  1. Record updated

    Safety & Chemistry pillar score

    Before
    72.6
    After
    78.5
    Primary datasheet
  2. Record updated

    Safety certification

    Before
    Basic cert
    After
    UL9540 / IEC62619
    Safety certificationSafety certification
  3. Record updated

    Global score

    Before
    70.2
    After
    71.4
    Primary datasheet
4 changes to this record · 11 products changed in this update
  1. Record updated

    DE Status

    Before
    not_reviewed
    After
    unavailable
    Primary datasheetDE market evidence+3 in JSON record
  2. Record updated

    DE Support Note

    Current text
    The aPower 2 data sheet (16 December 2025, page 2) states that APR-10K15V2-US is available in the United States and Canada. FranklinWH's regional schedule (US V1.0, 21 July 2026, page 2) lists the SKU under region NA, and the May 2026 end-user warranty applies to systems installed in the United States, United States Territories and Canada (page 2). FranklinWH's website lists United States, Canadian, Australian and Japanese regional sites, and franklinwh.com/de returned a 404 page on 7 October 2026. No German catalogue, data sheet or warranty naming APR-10K15V2-US was found, and the US SKU is not transferred. A differently named European product is not assessed. This is a market outcome only and is not a statement about product performance.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    Primary datasheetDE market evidence+3 in JSON record
  3. Evidence added

    DE Warranty scope

    Before
    Not previously recorded
    After
    The May 2026 FranklinWH System Limited Warranty for End Users applies to FranklinWH energy storage systems installed in the United States, United States Territories and Canada (page 2), and states that warranty terms may vary by region. No German or EU warranty naming APR-10K15V2-US was found in the FranklinWH sources checked on 7 October 2026.
    Primary datasheetDE market evidence+3 in JSON record
  4. Record updated

    DE Evidence sources

    Before
    https://www.franklinwh.com/de/
    After
    https://www.franklinwh.com/; https://www.franklinwh.com/de/; https://www.franklinwh.com/document/apower-2-datasheet; https://www.franklinwh.com/document/franklin-home-power-fhp-limited-warranty-for-end-users-en; https://www.franklinwh.com/document/franklinwh-backwards-compatibility-statement
    Primary datasheetDE market evidence+3 in JSON record
2 changes to this record · 49 products changed in this update
  1. Record updated

    DE Support Note

    Before
    franklinwh.com/de returns 404. No German catalogue names APR-10K15V2-US. The US aPower 2 SKU is not transferred.
    After
    franklinwh.com/de returns 404. No German catalogue names APR-10K15V2-US. The US aPower 2 SKU is not transferred. Re-audited 2026-09-22: this determination rests solely on the fetch failure recorded above, with no independently reachable regional catalogue, store or archived copy consulted. Downgraded to not_reviewed - unavailable was not confirmed, and this pass did not re-fetch to confirm available either.
    DE market evidence
  2. Record updated

    DE Status

    Before
    unavailable
    After
    not_reviewed
    DE market evidence
1 change to this record · 3 products changed in this update
  1. Record updated

    Source revision

    Current text
    aPower 2 data sheet, May 2026 governing warranty, July 2026 regional schedule, system manual and buyer-consequence boundaries reviewed 2026-08-07. Official Australian due-soon freshness recheck 2026-08-29. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing Australian and United States overlays and scores unchanged. 70% end-point retention joined from the May 2026 end-user warranty on 2026-09-20.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    Primary datasheet
5 changes to this record · 152 products changed in this update
  1. Evidence added

    DE Certifications

    Before
    Not previously recorded
    After
    DE market evidence
  2. Evidence added

    DE Evidence sources

    Before
    Not previously recorded
    After
    https://www.franklinwh.com/de/
    DE market evidence
  3. Evidence added

    DE Status

    Before
    Not previously recorded
    After
    unavailable
    DE market evidence
  4. Evidence added

    DE Support Note

    Before
    Not previously recorded
    After
    franklinwh.com/de returns 404. No German catalogue names APR-10K15V2-US. The US aPower 2 SKU is not transferred.
    DE market evidence
  5. Record updated

    Source revision

    Current text
    aPower 2 data sheet, May 2026 governing warranty, July 2026 regional schedule, system manual and buyer-consequence boundaries reviewed 2026-08-07. Official Australian due-soon freshness recheck 2026-08-29. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing Australian and United States overlays and scores unchanged.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    Primary datasheet
3 changes to this record · 9 products changed in this update
  1. Record updated

    AU Evidence sources

    Before
    https://www.franklinwh.com/au/products/apower-home-battery-storage/; https://www.franklinwh.com/document/download/apower-2-storage-and-transportation-guide
    After
    https://cer.gov.au/document/cec-approved-solar-batteries-0; https://www.franklinwh.com/au/products/apower-home-battery-storage/; https://www.franklinwh.com/document/apower-2-datasheet; https://www.franklinwh.com/document/download/apower-2-storage-and-transportation-guide
    AU market evidencePrimary datasheet+2 in JSON record
  2. Record updated

    Source revision

    Before
    aPower 2 data sheet, May 2026 governing warranty, July 2026 regional schedule, system manual and buyer-consequence boundaries reviewed 2026-08-07
    After
    aPower 2 data sheet, May 2026 governing warranty, July 2026 regional schedule, system manual and buyer-consequence boundaries reviewed 2026-08-07. Official Australian due-soon freshness recheck 2026-08-29.
    Primary datasheet
  3. Record updated

    AU Support Note

    Before
    The benchmarked aPower 2 SKU is APR-10K15V2-US. FranklinWH's Australia product page identifies a different model, aPower X (APR-05K15V1-AU), as the only aPower currently available in Australia.
    After
    The benchmarked aPower 2 SKU remains APR-10K15V2-US. FranklinWH's Australia product page still identifies aPower X (APR-05K15V1) as the current Australian aPower. The 29 August 2026 CER battery export has no aPower 2 or APR-10K15V2-US row; aPower X-01-AU and aPower X-02-AU are different identities and are not transferred.
    AU market evidencePrimary datasheet+2 in JSON record
17 changes to this record · 78 products changed in this update
  1. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://www.franklinwh.com/document/apower-2-datasheet; https://www.franklinwh.com/document/franklin-home-power-fhp-limited-warranty-for-end-users-en
    Primary datasheetWarranty throughput
  2. Record updated

    Global score

    Before
    71.5
    After
    70.2
    Primary datasheet
  3. Evidence added

    State

    Before
    Not previously recorded
    After
    supported
    Primary datasheetWarranty throughput
  4. Evidence removed

    Round-trip efficiency (%): Evidence status

    Before
    sourced
    After
    No longer recorded
    Primary datasheet
  5. Evidence added

    Value

    Before
    Not previously recorded
    After
    The exact datasheet and governing warranty publish a throughput endpoint, not an independently measured cycles-to-70% result.
    Primary datasheetWarranty throughput
  6. Evidence removed

    Round-trip efficiency (%): Evidence sources

    Before
    https://www.franklinwh.com/document/apower-2-datasheet
    After
    No longer recorded
    Primary datasheet
  7. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://www.franklinwh.com/document/apower-2-datasheet
    Primary datasheet+1 in JSON record
  8. Evidence added

    Value

    Before
    Not previously recorded
    After
    The exact US datasheet publishes 90% grid-to-battery-to-load round-trip efficiency for the integrated system.
    Primary datasheetWarranty throughput
  9. Evidence removed

    Round-trip efficiency (%)

    Before
    90
    After
    No longer recorded
    Primary datasheet
  10. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Primary datasheetWarranty throughput
  11. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://www.franklinwh.com/document/apower-2-datasheet
    Primary datasheet+1 in JSON record
  12. Record updated

    Power & Efficiency pillar score

    Before
    85.9
    After
    77.8
    Primary datasheet
  13. Evidence added

    State

    Before
    Not previously recorded
    After
    reviewed_absence
    Primary datasheetWarranty throughput
  14. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Primary datasheetWarranty throughput
  15. Evidence added

    Value

    Before
    Not previously recorded
    After
    Reviewed 2026-08-25: The exact US datasheet publishes 90% grid-to-battery-to-load round-trip efficiency for the integrated system. No battery/DC round-trip value is substituted into the score.
    Primary datasheetWarranty throughput
  16. Evidence added

    State

    Before
    Not previously recorded
    After
    reviewed_absence
    Primary datasheetWarranty throughput
  17. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Primary datasheetWarranty throughput

This is review.solar's publication history. It does not claim the product changed on the recorded date, and it excludes compatibility, system pairing, installation suitability and relative leaderboard prose. Open the complete JSON record.

Evidence timeline

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

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

Evidence record (JSON)

Scored by Solar Analytica Research

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