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Fox ESS ECS4000-H3
Very Good
  • Usable Capacity: 10.71kWh
  • Roundtrip Efficiency: 95%
  • Warranty: 12 Years
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DC-coupled for enhanced efficiency.NMC battery chemistry for a more affordable storage system.Provides backup power for power outages and blackouts.Stores excess solar energy during the day and use it at another time.

See all Fox ESS Solar Batteries See all Solar Batteries

DC-coupled for enhanced efficiency.NMC battery chemistry for a more affordable storage system.Provides backup power for power outages and blackouts.Stores excess solar energy during the day and use it at another time.

See all Fox ESS Solar Batteries See all Solar Batteries
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Connection Type (AC or DC)
DC
Chemistry
Lithium-ion
Total Capacity
11.9kWh
Usable Capacity
10.71kWh
Power: Peak
11.23kW
Power: Continuous
8.64kW
Depth of Discharge
90%
Degradation
7.0%
Roundtrip Efficiency
95%
The key characteristics of a battery are the power output, usable capacity and efficiency with which it stores and discharges electricity. Other characteristics, like the chemistry of the battery, help to determine how effective it is at storing electricity.
Warranty
12 Years
Warranty Cycles
6000
Warranties are an indication of the overall quality of the battery. Look for a high number of cycles, a high percentage of end-of-life usable capacity, and a large number of years warrantied.
Battery Dimensions
18.5 mm L
22.4 mm W
15 mm D
Traits
  • Scalable
  • Off-Grid Capable
  • Backup Capable
The physical characteristics of a battery help determine whether you’ll need an entire garage of batteries or a wall-mounted, radiator-size battery. Beyond just storing energy, batteries have a number of additional traits, such as being able to easily scale in size or to provide power if the grid goes down.
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Energy storage manufacturers may have a background in chemical industries or in making larger-scale batteries, such as building batteries for electric vehicles. Manufacturers may either make the battery cells themselves or assemble the batteries into a comprehensive energy storage system.
Certifications Received
None
Organizations like the International Electrotechnical Commission (IEC) and Underwriters Laboratories (UL) create national and international standards for energy storage systems to ensure any products on the market meet certain specifications for safety and reliability reasons.
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