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Home batteries

Enphase IQ Battery 5P

Small, AC-coupled 5 kWh units with the longest warranty of the batteries we cover: a good fit for adding a battery to existing solar.

★ Best for adding a battery to existing solar, and the longest warranty in our best home batteries

Facts checked 21 October 2026 against the manufacturer’s documents

The IQ Battery 5P is a 5 kWh battery with six built-in microinverters. It’s AC-coupled, so it sits alongside an existing solar system, and you add units in 5 kWh steps.

Key facts

Enphase IQ Battery 5P at a glance
FeatureDetail
Usable energy5.0 kWh per unit
Power3.84 kVA continuous, 7.68 kVA peak for 3 seconds, per unit
CouplingAC-coupled, with six embedded microinverters
BackupYes, with the Enphase system controller
ChemistryLithium iron phosphate (LFP)
Ingress ratingIP55
Operating temperature-20 °C to 50 °C (charging)
Weight66.3 kg
Warranty15-year limited warranty

Models

Models covered on this page
ModelCapacityPowerNotes
IQ Battery 5P5.0 kWh usable3.84 kVAAdd units in 5 kWh steps

Warranty

A 15-year limited warranty, the longest of the batteries we cover. Ask for the warranty document for the capacity it guarantees over that time.

Support in Australia

Enphase publishes an Australian and New Zealand datasheet for the IQ Battery 5P.

Strengths

  • 15-year warranty
  • AC-coupled: adds to most existing solar systems
  • Lighter units (66 kg) that are easier to place

Watch for

  • Lower power per unit (3.84 kVA); bigger homes need several
  • Larger systems mean more units on the wall

Our take

A strong choice for adding storage to solar you already have, especially with Enphase microinverters, and the warranty is the longest here. Size it by how much power you need at once as well as how much energy.

Before you buy

Sources

Specifications and warranties change. We use the manufacturer’s own documents and say when one isn’t published; check the current version with your installer before you sign.