13.5 kWh Storage Capacity with Professional Installation | Modular Upgrade for Home Battery System | Powerwall 3 Compatible
Expand the capacity of your home energy storage system with the Tesla Powerwall 3 Expansion Pack. Each unit adds another 13.5kWh and keeps the full 11.5kW output – stack up to 3 expansion packs for 40.5kWh total additional home backup. Includes professional installation by Tesla Certified Installers for seamless, code-compliant setup.
Designed to work seamlessly with the base Powerwall 3 unit, this DC-battery-only add-on increases your usable storage by 13.5 kWh per expansion unit. Ideal for homeowners looking to scale backup power, support larger loads, add EV charging capacity, or future-proof their energy setup — all with expert installation included.
Every Tesla Powerwall 3 Expansion Pack comes with full professional installation by Tesla Certified Installers. This ensures safe, efficient integration with your existing Powerwall 3 system, proper wiring via the Expansion Harness, wall or floor mounting, and commissioning through the Tesla App. IP67-rated for indoor or outdoor placement, with minimal disruption and compliance to local codes.
Installation covers connection, testing, and setup — no hidden fees for standard configurations. (Final pricing varies by location, incentives, and system details; contact a Certified Installer for your quote.)
Per Expansion Unit
Additional storage
Maximum Expansion
Per Powerwall 3
Weatherproof Rating
Indoor/outdoor install
Scale your energy storage up to 40.5 kWh additional capacity without the cost of additional inverters — with professional installation included.
Scale your home energy storage with the Tesla Powerwall 3 Expansion Pack — including professional installation. Add 13.5 kWh of additional capacity per unit (up to 40.5 kWh total), for extended backup power, EV charging support, and maximum solar self-consumption. Seamless integration with your existing Powerwall 3 system through the Tesla App.
Tesla Powerwall 3 Expansion Pack | 13.5 kWh Storage Capacity per unit with Professional Installation | Compatible with Powerwall 3 only | Up to 3 expansion units per system (40.5 kWh total additional) | IP67 rated for indoor/outdoor installation | Dimensions: 43.5" × 24" × 6.6" | Weight: 242.5 lb (module) / 261.2 lb (complete) | Operating temperature: –4°F to 122°F | UL 1973, UL 9540 certified. Pricing and final installation details provided by Tesla Certified Installers; subject to location, taxes, and incentives.
Your payment details are safe and secure. We accept the following:
13.5 kWh Storage Capacity with Professional Installation | Modular Upgrade for Home Battery System | Powerwall 3 Compatible
Expand the capacity of your home energy storage system with the Tesla Powerwall 3 Expansion Pack. Each unit adds another 13.5kWh and keeps the full 11.5kW output – stack up to 3 expansion packs for 40.5kWh total additional home backup. Includes professional installation by Tesla Certified Installers for seamless, code-compliant setup.
Designed to work seamlessly with the base Powerwall 3 unit, this DC-battery-only add-on increases your usable storage by 13.5 kWh per expansion unit. Ideal for homeowners looking to scale backup power, support larger loads, add EV charging capacity, or future-proof their energy setup — all with expert installation included.
Every Tesla Powerwall 3 Expansion Pack comes with full professional installation by Tesla Certified Installers. This ensures safe, efficient integration with your existing Powerwall 3 system, proper wiring via the Expansion Harness, wall or floor mounting, and commissioning through the Tesla App. IP67-rated for indoor or outdoor placement, with minimal disruption and compliance to local codes.
Installation covers connection, testing, and setup — no hidden fees for standard configurations. (Final pricing varies by location, incentives, and system details; contact a Certified Installer for your quote.)
Per Expansion Unit
Additional storage
Maximum Expansion
Per Powerwall 3
Weatherproof Rating
Indoor/outdoor install
Scale your energy storage up to 40.5 kWh additional capacity without the cost of additional inverters — with professional installation included.
Scale your home energy storage with the Tesla Powerwall 3 Expansion Pack — including professional installation. Add 13.5 kWh of additional capacity per unit (up to 40.5 kWh total), for extended backup power, EV charging support, and maximum solar self-consumption. Seamless integration with your existing Powerwall 3 system through the Tesla App.
Tesla Powerwall 3 Expansion Pack | 13.5 kWh Storage Capacity per unit with Professional Installation | Compatible with Powerwall 3 only | Up to 3 expansion units per system (40.5 kWh total additional) | IP67 rated for indoor/outdoor installation | Dimensions: 43.5" × 24" × 6.6" | Weight: 242.5 lb (module) / 261.2 lb (complete) | Operating temperature: –4°F to 122°F | UL 1973, UL 9540 certified. Pricing and final installation details provided by Tesla Certified Installers; subject to location, taxes, and incentives.
Your payment details are safe and secure. We accept the following:
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