Battery TESLA Powerwall 3 Expansion - 13.5kWh DC Battery Expansion (1807000-20-y)

The Tesla Powerwall 3 Expansion Battery is a 13.5kWh DC-coupled energy storage module designed exclusively for use with existing Powerwall 3 systems. This expansion unit enables installers to scale system capacity by adding additional storage without duplicating inverter hardware, making it an efficient and cost-effective solution for larger residential and light commercial applications.