EnphaseIQ Battery 5P with FlexPhase
The Enphase IQ Battery 5P with FlexPhase is a home battery with usable capacity 5 kWh, round-trip efficiency 90 % and cell chemistry LFP.1
Key figures
Rules in Ireland
SEAI home battery grant
UnknownA €600 grant for home battery storage systems was announced on 29 September 2026 and opens from 6 October 2026, subject to final implementation arrangements. Check SEAI for the detailed conditions before applying.
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP1 |
| Wi-Fi / app | Yes1 |
| Performance | |
| Usable capacity | 5 kWh1 |
| Efficiency | |
| Round-trip efficiency | 90 %1 |
| Electrical | |
| Coupling | AC-coupled1 |
| Phases | 31 |
| Backup power | Yes1 |
| Dimensions & weight | |
| IP rating | IP551 |
| Min. operating temperature | -20 °C1 |
| Width | 550 mm1 |
| Height | 980 mm1 |
| Depth | 188 mm1 |
| Weight | 83 kg1 |
| Warranty & lifespan | |
| Warranted cycles | 6,0001 |
| Warranty | 15 years1 |
Manufacturer documentation
- Product page
- Datasheet / specifications — IQ Battery 5P with FlexPhase – EMEA data sheet – DSH-00477-9.0-EN-2026-08-21
External links to Enphase's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
Compare with
Frequently asked questions
What is the usable capacity of the Enphase IQ Battery 5P with FlexPhase?
The usable capacity of the Enphase IQ Battery 5P with FlexPhase is 5 kWh.1
What is the round-trip efficiency of the Enphase IQ Battery 5P with FlexPhase?
The round-trip efficiency of the Enphase IQ Battery 5P with FlexPhase is 90 %.1
Which cell chemistry does the Enphase IQ Battery 5P with FlexPhase use?
The cell chemistry of the Enphase IQ Battery 5P with FlexPhase is LFP.1
What is the warranty of the Enphase IQ Battery 5P with FlexPhase?
The warranty of the Enphase IQ Battery 5P with FlexPhase is 15 years.1
Sources
- IQ Battery 5P with FlexPhase – EMEA data sheet, DSH-00477-9.0-EN-2026-08-21 — Enphase Energy, Inc. · accessed 27 Sept 2026
- SEAI home battery grant — Sustainable Energy Authority of Ireland (SEAI)