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Supporting members of the Clean Energy Council
FOX ESS EP EP11: WA installer quotes & fit | WattMate
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Battery · FOX ESS

FOX ESS EP EP11

CEC approved · June 2024

Usable capacity
10.36 kWh
Nominal capacity
10.36 kWh
Continuous power
10.37 kW
Peak power
13.5 kW

Value score

53/100
Fair value

Average specs — compare carefully with alternatives.

Usable capacity (DOD)15/15

100% DOD - Full capacity is usable

Warranty & terms11/20

10yr | 70% retention - Good warranty coverage

Round-trip efficiency13/15

95% efficiency - Excellent

Cycle life1/15

655 cycles - Low longevity (below mid-range tier standard of 5,000)

Degradation3/10

3%/year degradation - Moderate capacity loss (exceeds mid-range tier max of 2.5%/yr)

Capacity & power

Usable capacityⓘ
10.36 kWh
Nominal capacity
10.36 kWh
Continuous power
10.37 kW
Peak power
13.5 kW

Warranty

Warranty period
10 yrs

Chemistry & performance

Chemistry
LFP(LiFePO4)
Cycle life
655 cycles
Round-trip efficiencyⓘ
95%
Depth of discharge
100%

Capabilities

VPP ready
—
Backup capable
—
Expandable
Yes

Documents & provenance

Datasheet
PDF
Warranty document
PDF
Specs verified
Verified 2026-05-28

Documents

  • Datasheet
  • Warranty document
  • Installation manual

Specs verified 2026-05-28

Considering this battery?

Get matched with SAA credential-checked WA installers who can quote on it for your home.

Value for money5/10

Price per kWh not available

Heat tolerance (Perth)5/15

Temperature specs not available — scored conservatively for Perth climate

What this means

  • DOD exceeds tier expectations
  • Warranty throughput not specified - check terms before purchase
  • Lower cycle life may limit battery's useful lifespan
  • Degradation rate not specified — scored conservatively
  • No temperature data available — critical for Perth garage installations (40-50°C in summer)

Scored independently from manufacturer datasheets and the CEC register across usable capacity, warranty, efficiency, cycle life, degradation, value and heat tolerance. Missing specs are scored conservatively, never assumed.

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About FOX ESS

Manufacturer profile, market presence and support.

View manufacturer profile →