Fox ESS - Battery Reviews

About Fox ESS

Established in 2019, China's Fox ESS manufactures — among other solar products — home batteries. 

Australian Contact Details

The company's products are supported in Australia via offices in Melbourne and Sydney.

Melbourne: 53 Willow Avenue, Springvale VIC 3171
Sydney: Unit 3/39 Herbert St, St Leonards NSW 2065
Phone: 1300 377 369
Email: [email protected] 
Australian website

Company Info

Fox ESS was established in 2019 and by April the following year had shipped its first products independently developed by the firm. Fox ESS has grown rapidly since, and in May 2023 was added to the Forbes Global Unicorn list. A 'unicorn' is a privately held startup company with a current valuation of US$1 billion or more. 

The firm expanded into Australia in 2021, starting with solar inverters, adding batteries in 2022 and EV chargers in 2024.

The company's global headquarters are located in Wenzhou, China.

Fox ESS Batteries In Australia

Various Fox ESS home batteries have been CEC approved for use in Australia since 2022. Models currently available in Australia include:

CQ7

• 6.96 kWh usable capacity
• Scalable to 97.44 kWh (14 modules)
  • Using H3 Pro (Independent Dual Battery Input): up to 2 stacks of 14 modules each (97.44 kWh x 2 ~ 195 kWh)
  • Using H3 Plus (Independent Triple Battery Input): up to 3 stacks of 14 modules each (97.44 kWh x 3 ~ 292 kWh)
• 100% Depth of Discharge
• Nominal voltage – 115.2V ~ 806.4V  (depending on number of modules)
• LiFePO4 (LFP) battery chemistry
• Temperature range - Charge: 0 ~ 55C, Discharge: -10 ~ 55C
• With optional warm-up function on - Charge: -25 ~ 55C, Discharge: -25 ~ 55C
• CAN communication
• Ingress protection - IP65
• Aluminium casing
• Dimensions – 660W x 360D x 420H mm (with single battery module); 660W x 360D x 1040H mm with 6 modules.
• 10-year warranty with 70% battery retention

EQ4800

The EQ4800 is a high-voltage, modular battery system.

• 4.66kWh usable capacity
• Scalable to 41.93kWh (series connection - up to a stack of 9 modules)
• Nominal voltage - 89.6V ~ 403.2V (depending on number of modules)
• LiFePO4 (LFP) battery chemistry
• Temperature range - Charge: 0 ~ 55C, Discharge: -10 ~ 55C
• CAN communication
• Ingress protection - IP65
• Aluminium casing
• Dimensions - 570 x 386 x 380mm (with single battery module) 570 x 1352 x 380mm with 9 modules.

The EQ4800 is compatible with all H1-G2, KH, H3-Smart, and H3-Pro Fox ESS hybrid inverters.

EP12 Plus

The EP12 Plus is another high voltage system, but isn't modular.

• 11.52 kWh usable capacity; scalable to 46.08 kWh (parallel connection)
• 100% Depth of Discharge
• Nominal voltage - 384V
• Battery pack round-trip efficiency - ≥95%
• Can be floor or wall mounted
• Temperature range - Charge: 0 ~ 55C, Discharge: -10 ~ 55C
• With optional warm-up function on - Charge: -25 ~ 55C, Discharge: -25 ~ 55C
• IP65 ingress protection level
• Dimensions - 710 x 640 x 185mm
• Weight - 98 kilograms

The EP12 Plus is also compatible with all Fox ESS H1-G2, KH, H3-Smart, and H3-Pro series inverters

Warranty Information

Fox ESS offers a 10 year product warranty.

The performance warranty is 70% capacity retention at the end of that time, or based on throughput (whichever comes first): 

• For the EQ4800, at least 4.2MWh per kWh usable battery capacity.
• For the EP12 Plus, at least 3.7MWh per kWh.
• For the CQ7, at least 5.08MWh per kWh.

Do you have a Fox ESS battery? Consider leaving a review and rating of your system.