Nema 14-50 Tesla Charge Rate | How Fast Tesla Charges With Nema 14-50?
Nema 14-50 can be used at a maximum of 50A circuit breaker and so can give maximum of 40A of output at 240V for safe use with a plug-in home EV charger.
But many plug-in EV chargers using NEMA 14-50 power plug provide maximum power output limited to 32A, while there are many capable of providing a full 40A power output. As far as I know, these are the two variations of charger with the mentioned max output using NEMA 14-50 plug.
So even if NEMA 14-50 can deliver 40A, charging speed for your Tesla will be limited to maximum power output supported by EV charger you use.
So let’s look into both variations one by one.
Charging Speed at 32A Power Output
Mostly portable and lightweight plug-in Level 2 EV chargers support a maximum of 32A power output. These are kind of chargers that you can take with your car and are ready to use not needing any kind of installation. You can use it wherever a dryer outlet or 240V wall outlet is available.
For example, Tesla mobile connector is a portable and lightweight EV charger which is used by many Tesla owners charging with Nema 14-50 plug at 240V outlet. These are made to deliver a maximum power output of 32A.
So if you use Tesla mobile connector then maximum charging speed will become limited to 32A output.
On this power output, more details on charging speed are given below corresponding to each Tesla model.
Charging Tesla models using Nema 14-50 plug at 32A 240V (7.68kW) output you will get a charging speed of,
- 24 miles of range per hour of charging in model S
- 30 miles of range per hour of charging in model 3
- 23 miles of range per hour of charging in model X
- 27 miles of range per hour of charging in model Y
So charging your Tesla on average can add 26 miles of range per hour of charging with this kind of charger at 32A power output.
Charging Speed at 40A Power Output
But there are many Level 2 plug-in EV chargers capable of providing 40A power output. Such chargers require proper installation to be done by a certified electrician and are heavier than portable chargers. These are made to use as a fixed location charger like at home or offices.
For example, ChargePoint Home Flex, Emporia, Juicebox, Wallbox, etc capable of providing maximum power output of 40A at 240V using Nema 14-50 plug. So if you use those chargers and charge your Tesla at 40A output then you will get faster charging speed.
On this power output, more details on charging speed are given below corresponding to each Tesla model.
Charging Tesla models using Nema 14-50 plug at 40A 240V (9.6kW) output you will get a charging speed of,
- 30 miles of range per hour of charging in model S
- 37 miles of range per hour of charging in model 3
- 28 miles of range per hour of charging in model X
- 33 miles of range per hour of charging in model Y
So charging your Tesla on average can add 32 miles of range per hour of charging with this kind of charger at 40A power output.
In summary
Charging Tesla with Nema 14-50 plug with a charger giving power output of 32A will add 26 miles of range and power output of 40A will add 32 miles of range per hour of charging on average.
One IMPORTANT thing to note:
Please note, These are approximate charging speed rates, actual charge rate you can get depends on your vehicle configuration, total battery capacity, battery health, State of Charge of battery when you start charging, temperature of Tesla battery and ambient weather conditions during charging.