Find my battery · Evidence-based identification
Find the battery behind your Tesla.
Five questions, answered with documented evidence. When Tesla used more than one pack for the same configuration, you'll see every candidate, why your inputs can't separate them, and how to settle it.
Reference
Decoding European variant codes
In the EU, the Certificate of Conformity and field D.2 of the registration certificate list a variant code such as E5LD. Community research, led by the TFF Forum Akkuwiki, has mapped these codes to battery packs.
The observed pattern: a model letter (E = Model 3, Y = Model Y), then the battery code (for example 5L), then a drive letter (R = single motor, D = dual motor). This is a community-derived pattern, not an official Tesla specification.
Registration data can be outdated. Owners have reported certificates listing superseded capacities, so treat the code as strong evidence and the stated kWh as approximate.
| Code | Vehicle | Battery | Evidence |
|---|---|---|---|
| E1LR | Model 3 · Standard Range Plus | Panasonic 1L | Community |
| E3D | Model 3 · Long Range AWD | Panasonic 3 | Community |
| E5CD | Model 3 · Long Range AWD | LG 5C | Community |
| E5LD | Model 3 · Long Range AWD | LG 5L | Community |
| E6CR | Model 3 · Standard Range Plus | CATL 6C | Community |
| E6LR | Model 3 · Rear-Wheel Drive | CATL 6L | Community |
| Y5LD | Model Y · Long Range AWD | LG 5L | Community |
| Y5MD | Model Y · Long Range AWD | LG 5M | Community |
| Y7CR | Model Y · Rear-Wheel Drive | BYD 7C | Documented |