Mobile EVSEs
A Mobile EVSE is just like a regular EVSE that you install in your house, except that you can take it with you in your car. If you travel to rented condos/houses and other destinations that have accessible plugs, I highly recommend getting a mobile EVSE.
Some manufacturers include a 120/240V capable mobile EVSE with the car purchase (GM, Ford, Rivian), while others do not. It's hit or miss whether Tesla includes their mobile EVSE with a new car purchase these days.
At a minimum, a mobile EVSE allows you to plug into a regular household 120V receptacle. Over 16 hours of overnight charging, you could get 48 miles of range this way. But there are potentially a lot of other higher power receptacles you could plug into including receptacles for an electric dryer, an air conditioner, a stove, an RV hookup, or a welder plug (the Receptacle Identification page shows what the receptacles look like).
Here's how fast you can charge using various receptacles (typical values, charge time depends on your EV, exact voltage, etc.):
| Receptacle | Volts/Amps | Typical Miles/Hr | Miles over 16 hours |
|---|---|---|---|
| Household receptacle | 120V/15A | 3 | 48 |
| 20A Household receptacle | 120V/20A | 5 | 80 |
| 30A RV (TT-30 receptacle) | 120V/30A | 7 | 112 |
| 20A NEMA 6-20 (AC, Table Saw) | 240V/20A | 10 | 160 |
| 30A Dryer | 240V/30A | 15 | 240 |
| 50A (RV or Welder) | 240V/50A | 25 | 400 |
Tesla makes a very inexpensive and capable mobile EVSE. Works natively with all NACS compatible EVs. For J1772 EVs, you can use this with a Tesla to J1772 adapter.
The nice thing about the Tesla mobile EVSE (they call it a Mobile Connector) is that it has detachable plugs so you can plug directly into a dryer receptacle, or any 120V or 240V receptacle and the unit automatically will set the amperage draw to the correct value for the type of plug you are using. The Tesla Mobile Connector comes with a 15A/120V plug and a 50A/240V plug, but you can buy others, and you can even buy third party Mobile Connector adapters for unusual plugs like a TT-30 from vendors like EVSEAdapters.