Rivian R2s Can Melt Some Older NACS Adapters While Charging
AutoGuide
Last updated: July 22, 2026
Rivian R2 electric vehicles have encountered a charging issue where certain older NACS adapters can overheat and melt when used with CCS charging stations. This safety concern emerged during real-world testing, highlighting potential compatibility problems as the industry adopts NACS.
- The discovery was made by EV journalist Tom Moloughney during fast-charging tests of the Rivian R2.
- When attempting to charge the R2 at a CCS station using an older Tesla charging adapter (which interfaces with NACS), one of the physical pins on the adapter experienced thermal failure and melted.
- This incident indicates a potential incompatibility or safety risk when using older or aftermarket adapters with the newer NACS standard, particularly in conjunction with CCS infrastructure.
- The issue appears to be specific to the interaction between the Rivian R2, older NACS adapters, and CCS charging.
- Further investigation into the exact cause of the overheating and melting is warranted to ensure safe and reliable charging for all EV owners during this transition period.
- The standardization of NACS is intended to simplify charging, but this incident underscores the importance of thorough compatibility testing for all hardware combinations.
