XESS

Calculated automatically from publicly available data, subject to editorial adjustment.

Checked against the Clean Energy Regulator's published data. Rebates only apply when the exact model installed is on the current list.

• FoxESS CQ726 approved models
• FoxESS CQ613 approved models
• FoxESS 1K5-1P-HI10 approved models
• FoxESS T-G3 Series10 approved models

Australian Designed

XESS is headquartered in Brisbane, QLD, with product design and engineering supported by AERL, an Australian electronics manufacturer operating since 1985.

5.12kWh LiFePO4 Modules

Each XESSION-5120 module provides 5.12kWh of storage using LiFePO4 prismatic cells with active cell balancing for long cycle life and consistent performance.

Scalable to 300+ kWh

Rack-mounted modules fit into ENCR6 (6-module) or ENCR10 (10-module) cabinets. Up to six ENCR10 cabinets can run in parallel for commercial-scale storage.

Wide Temperature Range

Charging from -10 to +55°C and discharging from 0 to +55°C. Designed for Australian conditions including hot northern climates and cold alpine regions.

Multi-Inverter Compatibility

Works in managed mode with Victron, Deye, Noark, and AERL inverters, and in self-managed mode with Selectronic, SMA, and Solis.

7-Year Warranty (ext. to 10)

Standard 7-year warranty on battery modules (or 15.36 MWh throughput) with 70% SoH guarantee. Extends to 10 years when registered on XESS.Cloud.

XESS ION stands out for its scalability and broad inverter compatibility, making it a strong choice for off-grid and commercial applications. Tesla Powerwall 3 offers a simpler all-in-one package for residential grid-connected systems. BYD Battery-Box is the most widely supported by third-party inverters. XESS is newer to the market (founded 2022) so long-term reliability data is still building, while Tesla and BYD have longer Australian track records.

Is XESS an Australian company?

Yes, XESS Energy is headquartered in Brisbane, Queensland (1/75 Bluestone Circuit, Seventeen Mile Rocks, QLD 4073). The company was founded in 2022 by Craig Hunter and Peter Watkinson. Product design and engineering is done in partnership with Australian Energy Research Laboratories (AERL), which has been operating since 1985. Some components are manufactured overseas, but the system design and support are Australian.

How much does a XESS ION battery cost?

XESS ION pricing varies by configuration. A single 5.12kWh XESSION-5120 module plus cabinet starts from around $5,000 to $7,000 installed, depending on the inverter pairing and installation complexity. Larger systems with multiple modules cost proportionally more. Contact local installers for current pricing, as costs depend on your existing setup and location.

What inverters work with XESS ION batteries?

XESS ION batteries work in managed mode (full communication) with Victron, Deye, Noark, AERL, and XESS ONE inverters. They also work in self-managed mode with Selectronic, SMA, and Solis inverters. Check with XESS or your installer for the latest compatibility list, as new inverter integrations are added regularly.

What warranty does XESS offer?

XESS offers a standard 7-year warranty on battery modules, or 15.36 MWh of throughput per module, whichever comes first. The warranty guarantees at least 70% state of health at expiration. This extends to 10 years if the system is registered on XESS.Cloud for remote monitoring, or if the extended warranty is purchased separately. Cabinet warranty is 2 years.

Can XESS batteries be used off-grid?

Yes. The XESS ION battery system supports both grid-connected and off-grid installations when paired with a compatible inverter. The XESS ONE hybrid inverter/charger is specifically designed for off-grid and hybrid applications, integrating solar, battery, and generator inputs. The ION system’s scalability (up to 300+ kWh) makes it suitable for remote properties and off-grid homes.

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