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Premium Integrated

IQ Battery 5P

5 kWh · LFP · AC-coupled · Single-phase

EnphaseReleased ~2025

76/ 100

Superior

Global

LFPUL9540A100% Usable15yr Warranty

The verdict. In our Premium Integrated class, Enphase IQ Battery 5P leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

1stof 13 in Premium IntegratedTop 10%class average 64.9
Compare this battery →Ask Watt →

The assessment

How it scores, by category

Capacity & Usability96
Power & Efficiency80
Longevity (verified)65
Safety & Chemistry80
Guarantee & Backbone72
Energy Ecosystem72

Market position

1stof 13 in Premium IntegratedTop 10%
517676

Our reading

IQ Battery 5P sits at the top of the Premium Integrated class with 76 points against a class average of 64.9. Its strongest scoring dimension is capacity & usability (96), running 21.4 points above the class average on this dimension. Key specifications: LFP, 96% round-trip efficiency, 3.84 kW continuous output.

The data

Chemistry
LFP
Power
3.84kW
Round-trip
96%
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
5 kWh
Phase
Single phase
Backup boundary
Installation-specific
Architecture describes the product boundary. It is not a system design or an equipment-pairing decision.

Usable capacity

100% of this battery’s nominal capacity is usable, 5 kWh in the scored configuration.

5 kWh usableScored configuration: IQBATTERY-5P-1P-NA.

No reserve is withheld at the stated depth of discharge.

At a sourced 100% depth of discharge the usable and nominal figures are the same number, so no separate nominal capacity is stated.

Usable capacity sourceDepth-of-discharge source

Capacity guarantee: minimum retained at year 10

5.0 kWhfull3.0at yr 10
5060708090100Rated capacity 100%Guaranteed floor 60.0%60.0%0yr2yr4yr6yr8yr10yr
Rated capacity (reference)Guaranteed floor: 60.0% at yr 10

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

86 / 100#2 of 90 batteries
fleet low 40median 64fleet high 100
No backupGrid-forming

Grid-forming (black-start)

Continuous power
3.84kW
Surge / motor-start
Surge rated
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 IQ Battery 5P 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. Australian FlexPhase hardware is a separate regional identity. Scored model: IQBATTERY-5P-1P-NA · checked 2026-08-08. Evidence.

Sources & references · checked 2026-09-01

Strong evidence coverage

29 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.

Record revision. Exact IQBATTERY-5P-1P-NA US datasheet, activation-date warranty, owner guidance and buyer-consequence boundaries reviewed 2026-08-07; regional identity split 2026-08-08. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing Australian and United States overlays and scores unchanged.

Change ledger

Product record history

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

    DE Certifications

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

    DE Status

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

    DE Support Note

    Before
    Not previously recorded
    After
    The German Enphase storage store lists IQ Battery 5P FlexPhase. That page does not name IQBATTERY-5P-1P-NA. FlexPhase is a different identity and is not transferred.
    DE market evidenceDE market evidence
  4. Evidence added

    DE Evidence sources

    Before
    Not previously recorded
    After
    https://enphase.com/de-de/store/storage; https://enphase.com/de-de/store/storage/iq-battery-5p-flexphase
    DE market evidenceDE market evidence
  5. Record updated

    Source revision

    Before
    Exact IQBATTERY-5P-1P-NA US datasheet, activation-date warranty, owner guidance and buyer-consequence boundaries reviewed 2026-08-07; regional identity split 2026-08-08
    After
    Exact IQBATTERY-5P-1P-NA US datasheet, activation-date warranty, owner guidance and buyer-consequence boundaries reviewed 2026-08-07; regional identity split 2026-08-08. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing Australian and United States overlays and scores unchanged.
    Primary datasheet
21 changes to this record · 78 products changed in this update
  1. Evidence added

    Value

    Before
    Not previously recorded
    After
    Reviewed 2026-08-25: the exact datasheet publishes 96% DC round-trip efficiency. Its separate 90% AC-to-battery-to-AC result is retained as contextual pathway evidence and is not mixed into the DC score.
    Support availabilityGrid-forming & backup tier+15 in JSON record
  2. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://enphase.com/en-gb/media/10007
    Support availabilityGrid-forming & backup tier+15 in JSON record
  3. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Support availabilityGrid-forming & backup tier+15 in JSON record
  4. Evidence added

    Value

    Before
    Not previously recorded
    After
    The 6,000-cycle term is a warranty limit, not a measured cycle-life result to 70% retained capacity.
    Support availabilityGrid-forming & backup tier+15 in JSON record
  5. Record updated

    Round-trip efficiency (%)

    Before
    90
    After
    96
    Round-trip efficiency (%)
  6. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://enphase.com/en-gb/media/10007
    Support availabilityGrid-forming & backup tier+15 in JSON record
  7. Evidence added

    State

    Before
    Not previously recorded
    After
    supported
    Support availabilityGrid-forming & backup tier+15 in JSON record
  8. Evidence added

    State

    Before
    Not previously recorded
    After
    supported
    Support availabilityGrid-forming & backup tier+15 in JSON record
  9. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Support availabilityGrid-forming & backup tier+15 in JSON record
  10. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Support availabilityGrid-forming & backup tier+15 in JSON record
  11. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://enphase.com/download/iq-battery-5p-limited-warranty-en; https://enphase.com/warranty/us
    Support availabilityGrid-forming & backup tier+15 in JSON record
  12. Record updated

    Rating

    Before
    Very good
    After
    Superior
    Primary datasheet
  13. Evidence added

    Evidence sources

    Before
    Not previously recorded
    After
    https://enphase.com/download/iq-battery-5p-limited-warranty-en; https://enphase.com/warranty/us
    Support availabilityGrid-forming & backup tier+15 in JSON record
  14. Evidence added

    Value

    Before
    Not previously recorded
    After
    The exact datasheet publishes 90% AC-to-battery-to-AC round-trip efficiency at 50% rated power, 25 C and beginning of life.
    Support availabilityGrid-forming & backup tier+15 in JSON record
  15. Evidence added

    State

    Before
    Not previously recorded
    After
    supported
    Support availabilityGrid-forming & backup tier+15 in JSON record
  16. Evidence added

    Value

    Before
    Not previously recorded
    After
    Reviewed 2026-08-25: The 6,000-cycle term is a warranty limit, not a measured cycle-life result to 70% retained capacity. No cycles-to-70% value is substituted into the score.
    Support availabilityGrid-forming & backup tier+15 in JSON record
  17. Evidence added

    Confidence

    Before
    Not previously recorded
    After
    high
    Support availabilityGrid-forming & backup tier+15 in JSON record
  18. Record updated

    Name Rating

    Before
    Very Good
    After
    Superior
    Primary datasheet
  19. Evidence added

    State

    Before
    Not previously recorded
    After
    reviewed_absence
    Support availabilityGrid-forming & backup tier+15 in JSON record
  20. Record updated

    Power & Efficiency pillar score

    Before
    69
    After
    80.1
    Primary datasheet
  21. Record updated

    Global score

    Before
    74.5
    After
    76.3
    Primary datasheet

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

Evidence record (JSON)

Scored by Solar Analytica Research

Further reading from Findings

Stay across the benchmark.

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