Technical snapshot of Tesla Powerwall 3 with key specs and features.

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Tesla Powerwall 3 Specifications

Energy Storage and Output

13.5 kWh of nominal battery capacity per Powerwall 3
Up to 11.5 kW of continuous AC output
Up to 48 amps of continuous current
185 LRA motor-start capability for starting high-demand equipment
Configurable off-grid output of up to 15.4 kW with qualifying system design and electrical equipment

Solar Integration

Integrated solar inverter
Supports up to 20 kW of solar input
Six Maximum Power Point Trackers (MPPTs)
Up to 97.5% solar-to-home or grid efficiency
Approximately 89% solar-to-battery-to-home/grid round-trip efficiency
Can store excess solar energy for nighttime use or power outages

Expandable System Design

Supports up to four Powerwall 3 units
Supports up to three Powerwall 3 Expansion units
Maximum supported configuration of seven combined units
Each Expansion unit adds 13.5 kWh of battery capacity
System capacity can grow with changing home or business energy needs

Monitoring and Connectivity

Real-time monitoring through the Tesla app
Wi-Fi connectivity on 2.4 GHz and 5 GHz networks
Ethernet and cellular connectivity
Revenue-grade energy metering
Customizable backup reserve and operating modes
Automatic outage detection and backup-power controls

Physical Specifications

Height: 43.5 inches
Width: 24 inches
Depth: 7.6 inches
Installed weight: 291.2 pounds
Wall-mounted or floor-mounted installation options
Suitable for indoor or outdoor installation

Environmental Protection

Operating-temperature range of −4°F to 122°F
Battery and power electronics rated IP67
Wiring compartment rated IP55
NEMA 3R enclosure rating
Designed for up to 100% condensing humidity
Maximum operating elevation of approximately 9,843 feet

North American Electrical Compatibility

120/240 VAC input and output
Split-phase electrical configuration
60 Hz frequency
Compatible with Backup Gateway 2, Backup Switch, or Gateway 3
Designed for qualifying residential and light-commercial applications

Warranty and Support

10-year Tesla product warranty
System performance and energy data available through the Tesla app
Installation and commissioning by a Tesla Certified Installer
Final system capacity and backup duration depend on property loads, configuration, solar production, weather, and customer usage

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