Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Corded 14-50 Tesla Charger - Improved Speeds?

Marcust99

Member
Apr 17, 2021
211
198
Phoenix, AZ
So Tesla is selling this for $520 (cough), and touts it as

"The Corded Mobile Connector features a NEMA 14-50 plug and improved charging speeds (versus standard Gen 2 Mobile Connector with NEMA 5-15 adapter)."

Why would the charging rate be faster just because the 14-50 plug is hard wired as opposed to the $45 adapter being attached? Even if it was, it would be nice if they listed what it was.....
 
Last edited:

jcanoe

Active Member
Oct 2, 2020
2,110
2,081
Maryland
So Tesla is selling this for $520 (cough), and touts it as

"The Corded Mobile Connector features a NEMA 14-50 plug and improved charging speeds (versus standard Gen 2 Mobile Connector with NEMA 5-15 adapter)."

Why would the charging rate be faster just because the 14-50 plug is hard wired as opposed to the $45 adapter being attached?
The Corded (with a fixed NEMA 14-50 plug) Mobile Connector supports 240V and 40A. The Gen2 Mobile Connector that comes with the Tesla vehicle and accepts modular power plug adapters (including a NEMA 14-50 plug adapter) is limited to 240V and 32A. The reason has to do with the number of interconnects. The modular plug adds one more interconnect to the circuit so limiting the current to a maximum of 32A is safer. (The Gen1 Mobile Connector with the NEMA 14-50 power plug adapter would support up to 40A. There were some cases of the Gen1 Mobile Connector overheating, electrical fires.)

In addition to the fixed NEMA 14-50 plug the Corded my understanding is that the Corded Mobile Connector includes heavier gauge wire.

Charging using the Corded Mobile Connector is up to 25% faster than when using the Gen2 Mobile Connector; 240V and 40A (9.6kW) versus 240V and 32A (7.7kW).
 
Last edited:

hill

Active Member
Apr 21, 2015
1,315
677
Lake Forest, CA
Our gen 1 mobile cable is much thicker than newer Tesla EVSE's (& it stays cooler than our 72A wall model) , and 40 amps (even 10% over) is still under the 50 amp rating of the plug.
 

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top