Tesla Powerwall 3 Expansion

tesla SKU: TESLA-1807000-20-B

More Details
The Tesla Powerwall 3 Expansion adds 13.5 kWh of extra storage to existing Powerwall 3 systems. Designed for seamless integration, it offers reliable performance, durable outdoor-rated construction, and flexible mounting options for installers working across the EU.
Documents

Tesla Powerwall 3 Expansion

Tesla Powerwall 3 Expansion is a battery expansion unit for use with Powerwall 3. It is indoor and outdoor rated and supports floor or wall mounting for energy storage installations requiring additional capacity behind a Powerwall 3 system.

Key Features
Powerwall 3 expansion unit

Battery expansion module specified for use with Powerwall 3 only.

Indoor and outdoor rated enclosure

Specified for indoor and outdoor installation with NEMA 3R enclosure rating and IP67 ingress protection.

Floor or wall mount

Can be installed using floor or wall mounting options to suit the layout of the system.

Stackable floor-mounted configuration

Floor mounting supports up to three Expansion units behind a Powerwall 3.

Parallel-connected units

Expansion units are connected in parallel using the Powerwall 3 Expansion harness.

Benefits
  • Adds storage capacity to a Powerwall 3 installation
  • IP67 and NEMA 3R enclosure support exposed indoor or outdoor environments
  • Floor or wall mounting gives installation flexibility
Technical Summary

Model 1807000-xx-y. Nominal battery energy 13.5 kWh. Voltage range 52–92 V DC. Operating temperature -20°C to 50°C. Operating humidity up to 100% condensing. Maximum elevation 3000 m. Dimensions 1105 x 609 x 168 mm. Wall-mounted unit weight 118.5 kg. Mounting options: floor or wall mount. Floor mounting allows up to three Expansion units behind a Powerwall 3. Connection is via the Powerwall 3 Expansion harness.

Installation Notes

Only compatible with Powerwall 3. Expansion units are connected in parallel and are not field serviceable. Use the Powerwall 3 Expansion harness for connection. Floor mounting allows stacking of up to three Expansion units behind a Powerwall 3.

Manufacturer

Tesla Energy

Commodity Code

8507600090

Dimensions (mm) (H x W x D)

1074.42 × 609.6 × 177.8

IP Rating

IP67

Weight (kg)

110

PDF Icon

Tesla Powerwall 3 Owner Manual EN EMEA APAC

PDF Icon

Tesla Powerwall Warranty EN EMEA

PDF Icon

Tesla Powerwall 3 Datasheet UK Current 2026 08 24

Write Your Own Review
You're reviewing: Tesla Powerwall 3 Expansion
loader
Loading...

check-circle You submitted your review for moderation.