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SunPower SunVault 13
Very Good
  • Usable Capacity: 12kWh
  • Roundtrip Efficiency: 85%
  • Warranty: 10 Years

AC-coupled to seamlessly add to an existing solar system.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 SunPower Solar Batteries See all Solar Batteries

AC-coupled to seamlessly add to an existing solar system.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 SunPower Solar Batteries See all Solar Batteries
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Model Year
2020
Connection Type (AC or DC)
AC
Chemistry
Lithium Iron Phosphate
Audience
Residential
Total Capacity
13kWh
Usable Capacity
12kWh
Power: Peak
17kW
Power: Continuous
13.6kW
Degradation
3.0%
Roundtrip Efficiency
85%
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
10 Years
Warranty Cycles
4000
End of Warranty Capacity
70%
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
1640 mm L
660 mm W
380 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.
Certifications Received
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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