About the Enphase IQ Battery
Enphase is best known for microinverters. Its IQ Battery 5P is built the same way, with the battery inverter split into microinverters inside the unit, so it connects on the AC side.
That makes it the natural choice with Enphase IQ8 solar, and an option for any home that wants an AC-coupled battery. It uses lithium iron phosphate cells and is rated IP55 for outdoor installation.
Enphase IQ Battery specifications
| Energy | 5 kWh per unit |
|---|---|
| Continuous power | 3.84 kVA per unit |
| Peak power | 7.68 kW for 3 seconds |
| Coupling | AC, built-in microinverters |
| Chemistry | Lithium iron phosphate (LFP), IP55 |
| Warranty | 15 years or 6,000 cycles, 60% capacity at end |
What a Enphase IQ Battery costs
Installers set their own prices, so get quotes. As a benchmark, the Solar Choice Battery Price Index (August 2026 data) puts the average installed price of a 10 kWh battery with its own inverter at about $8,284, after the federal discount and including GST. That is the size of two IQ Battery 5P units, so compare quotes against it.
For a 10 kWh battery installed in 2026, the federal discount is 68 STCs, worth up to $2,720 at the $40 Clearing House price. See battery costs and battery rebates.
Enphase IQ Battery strengths and trade-offs
Strengths
Enphase IQ Battery- Longest warranty of the major brands
- Modular 5 kWh units
- Pairs with Enphase solar and monitoring
Trade-offs
Consider- Lower power per kWh than some rivals
- Needs several units for a large battery
- Usually dearer per kWh
Check compatibility and the approved list
Make sure the exact model is on the Clean Energy Council approved battery list and works with your inverter, or the system will not get the federal discount.
Common questions
5 kWh per unit, with 3.84 kW continuous power. Several units can be combined for more storage.
A 15-year or 6,000-cycle limited warranty, whichever comes first, guaranteeing 60% of capacity at the end, according to the Australian datasheet.
The IQ Battery 10C is a North American product. In Australia, Enphase sells the IQ Battery 5P.
Sources
Specifications and warranty terms come from the manufacturer's Australian datasheet and warranty documents. Prices are from the Solar Choice Battery Price Index, an industry source. Last checked October 2026. Prices include GST unless we say otherwise.