Identifying Powerwall 3 Manufacture Date
If needed, the Powerwall 3 manufacturing date can be identified from the serial number printed on the side of the unit. The serial number can also be found in Tesla One when connected to the Powerwall 3.
From the serial number, the manufacturing date (A below) is the manufacturing
year (digits 4 and 5) followed by the Julian date (digits 6-8). In the following
example: TG1241450001JH:
- "24" is the manufacturing year, or 2024
- "145" is the Julian date, or May 25
This unit was manufactured on May 25, 2024.

Note
At 50% State of Charge (SOC), 20°C, Powerwall 3 is expected to have 0% power fade
throughout the life of the product.
Note
At 50% State of Charge (SOC), 20°C,
Powerwall 3 Internal Resistance shall be 36 mOhms. Over 10 years of operation, for an
average user, the Internal Resistance is expected to grow by 60%.
Note
Powerwall 3 is expected to have 20% fade after 10 years. Please review the Application and Operating Limitation
considerations in Tesla's Powerwall Warranty.