Tesla
Tesla·Home Battery Systems
Tesla Powerwall 3 — Dual Battery System
4.7· 1,284 verified buyers
$9,349$11,834 retailSave 21%
You save $2,485 vs. retail.
Two stacked Tesla Powerwall 3 units provide 27kWh of usable LFP storage with an integrated solar inverter built into each Powerwall, eliminating the need for a separate string inverter. Each unit delivers 11.5kW of continuous on-grid and backup power and accepts up to 20kW of DC solar across multiple MPPTs, so the pair can host a large rooftop array directly. Whole-home backup is seamless, with the system able to start heavy motor loads rated up to 185 LRA. A 10-year warranty and 97.5% round-trip efficiency make it one of the most capable residential batteries available.
Highlights
- 27 kWh total
- Integrated solar inverter
- Whole-home backup
Specifications
- Usable capacity
- 27 kWh total (2 × 13.5 kWh)
- Continuous power
- 23 kW total (2 × 11.5 kW), on-grid and backup
- Peak power
- Up to 185 LRA motor start per unit
- Chemistry
- Lithium iron phosphate (LFP)
- Expandable
- Up to 4 Powerwall 3 units per system
- Inverter
- Integrated solar inverter, up to 20 kW DC PV input per unit (multi-MPPT)
- Round-trip efficiency
- 97.5%
- Connectivity
- Tesla app monitoring, Wi-Fi / Ethernet / cellular
- Operating temperature
- -4°F to 122°F (-20°C to 50°C)
- Dimensions
- 43.25 × 24 × 7.6 in per unit
- Warranty
- 10 years (≥70% capacity retention)
1
- Authentic & factory-sealed — never used, open-box, or refurbished
- Full manufacturer warranty included
- Insured white-glove freight, with professional setup on big items
- 30-day returns on unused single units
White-glove delivery
Full warranty
Secure checkout
More in Home Battery Systems
EcoFlow
Save 28%Home Battery SystemsBrand New
EcoFlow DELTA Pro Ultra — 12kWh Whole-Home Battery
$3,299$4,582
Anker SOLIX
Save 29%Home Battery SystemsBrand New
Anker SOLIX F3800 Plus + Expansion Battery (7.68kWh)
$4,014$5,654
REC
Save 16%Solar SystemsBrand New
10kW Solar Array Package — REC Panels + Enphase Inverter
$13,749$16,368