About This Product

The Enphase 5kWh IQ Battery 5P AC-Coupled Single & Three Phase with FlexPhase is Enphase’s latest-generation modular energy-storage unit designed for reliable whole-home and solar-only backup. It uses Enphase’s fifth-generation microinverter architecture, giving each battery module independent power conversion and fault isolation. This model is AC-coupled, works with both single-phase and three-phase homes through FlexPhase technology, and integrates natively with Enphase IQ8 and newer systems. It supports high surge output, fast discharge capability and offers built-in rapid-shutdown and arc-fault protection. The enclosure is outdoor-rated and includes passive and active thermal management for hot Australian conditions.

Who This Product Suits

• Homeowners wanting a reliable, modular battery that integrates cleanly with existing Enphase microinverters.
• Properties with single-phase or three-phase supply looking for a flexible AC-coupled storage option.
• Sites wanting backup capability for essential circuits or whole-home backup in supported configurations.
• Installations needing high power output relative to capacity, such as homes with frequent short-duration surges.
• Customers planning staged expansion, as multiple IQ Battery 5P units can be added over time.

Specifications Explained

• Usable Capacity: 5 kWh usable energy per unit through a lithium iron phosphate (LFP) chemistry for long cycle life and thermal stability.
• Power Output: High sustained and surge power thanks to the built-in microinverter architecture, allowing better handling of short high-load events.
• AC-Coupled Design: Simplifies installation on both new and existing solar systems without requiring DC rewiring.
• FlexPhase Support: Operates on single-phase, two-phase or three-phase supply, giving broader site compatibility.
• Communication & Monitoring: Integrates with the Enphase IQ Gateway and the Enphase App for real-time status, performance tracking and remote updates.
• Safety Features: Includes built-in overcurrent protection, arc-fault detection, rapid shutdown, and cell-level fault isolation.
• Thermal Management: Intelligent cooling system maintains safe operation in high ambient temperatures common in Australian environments.

Summary

The Enphase 5kWh IQ Battery 5P AC-Coupled Single & Three Phase with FlexPhase is a solid choice for homes wanting dependable, modular storage with strong compatibility across supply types. Its LFP chemistry, high power output, and native Enphase integration make it well suited for both retrofit and new installations. Easy monitoring, strong safety features and future expandability round out a practical, installer-friendly storage solution.

Further Information From The Manufacturer

The Enphase IQ Battery 5P’ all-in-one AC-coupled storage system is powerful, reliable, smart, simple, and safe.? It has a total usable energy capacity of 5 kWh and includes six embedded grid-forming microinverters with 3.84kVA continuous power rating. It provides backup capability and installers can quickly design the right system size to meet the needs of both new and retrofit solar customers.

The new Enphase IQ Battery 5P with FlexPhase has the following additional benefits:

• Each unit has the flexibility to be configured for single or three phase backup (true three phase backup)
• Configurable power output: 1P: 1.65/2.50/3.00/3.68/3.84kVA 3P: 1.84/2.50/3.00/3.68/3.84kVA

The Enphase Battery uses a distributed architecture to provide maximum reliability. Each battery includes multiple bi-directional IQ’ 8 microinverters to switch energy from DC to AC and back again for safe, reliable operation. So, even if one stops, the battery will continue to operate and keep the lights on.

IQ Battery 5P system with integrated Enphase IQ Microinverters and battery management system (BMS) with Battery Controller, includes:

• IQ Battery 5P unit
• IQ Battery 5P cover and wall-mount bracket (B05-CX-0550-O; B05-WB-0543-O)
• IQ Battery 5P uses a third-generation storage technology and doesn’t have any moving parts that can break over time.

Weights & Measurements Information

About Enphase

Enphase is a global leader in microinverters and fully integrated solar-plus-storage ecosystems. Their Australian product lineup includes microinverters, batteries, and advanced monitoring through the Enphase App.