What EV Charger Do You Need for a 2027 Mercedes-Benz CLA350 with EQ Tech?
Your home circuit might push more current than your car can handle, or the wall might fall short. The 2027 Mercedes-Benz CLA350 with EQ Tech accepts a maximum of 48 amps of Level 2 charging. Buy a 48-amp EVSE to match the onboard charger. You will refill the 90.5 kWh battery in 8.2 hours.
The numbers
| Maximum AC charging rate | 11.0 kW (48 A) |
|---|---|
| Charger size to buy | 48 A |
| Circuit breaker required | 60 A |
| Outlet / connection | hardwired (a 48 A EVSE must be hardwired -- no household receptacle is rated for it) |
| Charge port | J1772 |
| Full charge on Level 2 | about 8.2 hours |
| Range added per hour (Level 2) | about 38 miles |
| Full charge on a 120 V outlet | about 63 hours |
| Range added per hour (120 V) | about 5.0 miles |
| EPA rated range | 312 miles |
| Energy for a full charge | about 90.5 kWh at the wall |
Why 48 amps and not more
The car draws 11.0 kW through its onboard charger. Pumping more than 48 amps into the vehicle wastes money on oversized hardware. The car ignores extra capacity because its internal limits are fixed. Your charger adds 38 miles of range for every hour plugged in. Anything smaller slows down the refill rate without any benefit.
What the install involves
You need a 60-amp breaker to supply the 48-amp charger safely. Hardwiring is mandatory because no household receptacle handles 48 amps continuously. Call an electrician to run heavy gauge wire from your main panel to the garage wall. Local codes dictate conduit type and disconnect requirements.
Chargers that match this car
Energy monitoring built in. Hardwire it for the full 48 A.
Compact unit, good for tight garages.
Adjustable from 16 A to 50 A in the app, which helps if your panel is tight.
Worth having as well
Common questions
- Can I use a normal wall outlet?
- Level 1 charging on a standard household outlet takes 63 hours for a full charge. That method adds only 5 miles of range per hour. You need a 240-volt Level 2 setup for daily driving.
- What plug type does the car use?
- This vehicle uses a J1772 connector. Many 2025 and newer vehicles ship with a NACS port but include a J1772 adapter, so a J1772 home charger still works. Confirm your car port before buying.
- Why is the EPA charge time different?
- The EPA tests do not always run at the car peak AC rate, which explains why the EPA rated charge time is 8.8 hours instead of 8.2 hours. Real world speeds hit 38 miles per hour at maximum Level 2 current.
- Will a 50-amp charger work?
- Yes. Chargers like the ChargePoint Home Flex support up to 50 amps hardwired, but your car caps the draw at 48 amps. You can adjust the amperage settings inside the app.
Other vehicles
Charging times derived from EPA data for the 2027 Mercedes-Benz CLA350 with EQ Tech. Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.