Battery Storage
Enphase IQ Battery 5P 5.0kWh
AC-coupled 5kWh module for Enphase microinverter systems. Plug-and-play, no separate hybrid inverter needed.
£2636.65 ex VAT
How it scores
Scores based on published manufacturer specifications and weighted criteria — not lab testing. Methodology.
Specifications
- Chemistry
- LiFePO4
- Weight kg
- 50
- Usable kWh
- 5
- Warranty years
- 15
- Ac or dc coupled
- AC
- Inverter built in
- Yes
- Round trip eff %
- 96
- Cycle count warranty
- 6000
- Depth of discharge %
- 100
What I noticed
The Enphase IQ Battery 5P is the AC-coupled storage module designed to integrate with Enphase's IQ microinverter PV systems. Unlike DC-coupled cells that need a matched hybrid inverter, the IQ Battery talks to existing IQ microinverters via Enphase's Envoy gateway — no separate hybrid inverter, no rewiring of the PV array.
Each IQ Battery 5P delivers 5kWh usable capacity at 3.84kW continuous output. Stack multiple units for larger capacity. The 15-year warranty is the longest in the UK residential battery market.
Who it suits
Households with an existing Enphase microinverter PV array — the integration is genuinely plug-and-play. Also strong for shaded or complex roofs where Enphase microinverters are already the right PV choice.
What I'd watch for
Per-kWh cost is the highest in our comparison — pay this premium specifically for Enphase ecosystem integration and the 15-year warranty. Not compatible with non-Enphase PV systems. Continuous output (3.84kW) is lower than competing AIO inverters — for high-draw appliances, may need to limit simultaneous loads.
IQ Battery 5P 5.0kWh head-to-heads
Side-by-side scoring vs each alternative in our shortlist.
Other Battery Storage on my shortlist
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