Tesla, Powerwall 3, 13.5kWh Battery with Integrated 11.5kW Inverter, US Made, 1707000-21-y

SKU: 480-0058

Manufacturer Part #: 1707000-21-y

Item Weight: 291.2 lb

Dimensions (LxWxH): 43.5 x 24 x 7.6 inches

Manufacturer Product Line: Powerwall 3

The Tesla Powerwall 3 (1707000-21-y) is a 13.5kWh lithium iron phosphate (LFP) home battery with an integrated 11.5kW inverter, designed for high-power, efficient solar energy storage. Engineered for reliability with a 10-year warranty, it features 185 LRA motor-start capability for whole-home backup.

Key Specifications & Features:

Usable Capacity: 13.5 kWh
Integrated Inverter: 11.5 kW continuous power output
Solar Compatibility: Supports up to 20 kW DC input with 6 MPPTs
Efficiency: 97.5% solar-to-grid efficiency
Dimensions/Weight: 43.5"x24"x7.6" / 291.2 lb
Environment: Indoor/outdoor rating (IP67)
Scalability: Up to 4 Powerwall 3 units can be stacked

Advantages:

Integrated Inverter: Simplifies installation by combining the battery and solar inverter, unlike previous versions.
High Power Output: The 11.5kW inverter can handle larger household loads, including heavy appliances and HVAC systems.
Robust Backup: Seamless transition to backup during grid outages, often using "Storm Watch" for automatic charging before severe weather.

This unit is a highly capable, US-made system designed for both new and existing solar installations, requiring professional certification for purchase and installation.

Documents:

Data Sheet (Created 4/1/2025)

Tesla Powerwall 3 1707000-21-y 13.5kWh Lithium Iron Phosphate Battery with Integrated 11.5kW Inverter Domestic Content

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