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Tesla | Powerwall 3X Expansion | 13.5kWh

  • Tesla
  • 1807000-20-B | Battery Expansion | Max. 3 on Powerwall 3
Article number:TES-POWERWALL-3X
Tesla | Powerwall 3X Expansion | 13.5kWh

Product information

Tesla Powerwall 3X Expansion | 13.5kWh

The Tesla Powerwall 3 Expansion Pack is an additional battery module designed to increase the storage capacity of an existing Powerwall 3 system. It offers a cost-effective way to store more energy without needing a full second Powerwall unit with an integrated inverter.

Key features

  • Additional capacity: Each expansion unit adds 13.5 kWh of usable energy storage, the same capacity as the main unit.
  • Scalability: You can connect up to three expansion packs to a single Powerwall 3, bringing total storage capacity up to 54 kWh.
  • No extra inverter: The expansion packs are DC-coupled and use the inverter and control system of the main unit. This makes them more affordable and easier to install than a full additional Powerwall.
  • Flexible installation: Expansion units can be wall-mounted next to the main unit or stacked on the floor (behind the main unit).
  • Seamless integration: The entire system is managed via the Tesla app and comes with the same standard 10-year warranty as the Powerwall 3.

The expansion packs are only compatible with the Powerwall 3 and cannot be used with the Powerwall 2 or third-party batteries. See the storage folder for additional components required to connect this to your Powerwall 3.

Please note! See below for required components:

(Additional Powerwall 3 Expansion battery unit: maximum per location: 3 units on a single Powerwall)

  • Floor-mounted back-to-back, incl. expansion wiring harness: C-TES-PW3X-B2B capacity 13.5kWh
  • Wall-mounted side-by-side, incl. expansion wiring harness*:
  • A. Includes 0.5m wiring harness: C-TES-PW3X-WALL-0.5
  • B. Includes 2m wiring harness: C-TES-PW3X-WALL-2.0
  • C. Includes 4m wiring harness: C-TES-PW3X-WALL-4.0

See composition contents for additional items needed alongside the expansion unit.

Technical Specifications

  • Capacity: 13.5 kWh
  • 5 kW
  • IP55
  • Dimensions: 1105 × 609 × 168 mm
  • Weight: 118.5 kg
  • Warranty: 10 years

Specifications

Ambient temperature
-20-50
Allowable relative humidity
0-100
Width
609
Depth
168
Nominal battery capacity
13.5

Documentation