What EV Charger Do You Need for a 2026 Mercedes-Benz EQS 450?
Forty amps is the target. Your Mercedes-Benz EQS 450 needs a 40 amp Level 2 home charging setup to hit its peak AC rate. You get 28 miles of range per hour of charging. A full battery takes 13.8 hours.
The numbers
| Maximum AC charging rate | 9.6 kW (40 A) |
|---|---|
| Charger size to buy | 40 A |
| Circuit breaker required | 50 A |
| Outlet / connection | NEMA 14-50 outlet |
| Charge port | J1772 |
| Full charge on Level 2 | about 13.8 hours |
| Range added per hour (Level 2) | about 28 miles |
| Full charge on a 120 V outlet | about 92 hours |
| Range added per hour (120 V) | about 4.2 miles |
| EPA rated range | 390 miles |
| Energy for a full charge | about 132.6 kWh at the wall |
Why 40 amps and not more
The onboard charger maxes out at 40 amps and 9.6 kW. Buying a larger 48 or 50 amp charger will not speed up your charge time at all. Your car ignores the extra capacity because its internal hardware cannot draw it. Stick to the recommended 40 amp specification. This keeps hardware costs lower while still filling the 132.6 kWh battery overnight.
What the install involves
You need a 50 amp breaker to feed the circuit safely. Plugs connect to a NEMA 14-50 outlet. Hire a licensed electrician for this work. They will verify wire gauge, install the correct breaker size, and inspect the load on your main panel before you plug in.
Chargers that match this car
Rugged metal enclosure, built for outdoor use.
Portable cordset. Works on 120 V or a 240 V outlet.
Plugs into an existing 14-50 outlet, no hardwiring.
Worth having as well
Common questions
- What connector does this car use?
- It uses a J1772 connection. This model year falls in the industry transition, so many vehicles ship with a NACS port but include a J1772 adapter. Confirm your car port before buying.
- Can I use a standard wall outlet?
- Yes, standard Level 1 charging works on a normal household outlet. It takes 92 hours for a full charge and adds 4.2 miles per hour.
- Which charger models fit this car?
- The Grizzl-E Classic 40A, Grizzl-E Mini Portable, and ChargePoint Home Flex NEMA 14-50 all match your maximum amperage. They plug directly into a 14-50 outlet.
- Does the EPA charge time differ from the maximum rate?
- The EPA rated Level 2 time is 14.0 hours at 28 miles per hour. This differs slightly from the peak rate because standard testing protocols account for charging efficiency losses.
Other vehicles
Charging times derived from EPA data for the 2026 Mercedes-Benz EQS 450 (covering 2 EPA trim listings). Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.