What EV Charger Do You Need for a 2025 Mercedes-Benz EQB 350?
Forty amps is the target. Your Mercedes-Benz EQB 350 tops out at 9.6 kW on AC power. You need a 40 amp Level 2 setup to hit that speed. Anything larger is a waste of money.
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 8.4 hours |
| Range added per hour (Level 2) | about 25 miles |
| Full charge on a 120 V outlet | about 56 hours |
| Range added per hour (120 V) | about 3.7 miles |
| EPA rated range | 207 miles |
| Energy for a full charge | about 80.3 kWh at the wall |
Why 40 amps and not more
The onboard charger dictates your maximum speed at home. Feeding this car 48 amps or 50 amps changes nothing because the vehicle limits the draw to 40 amps. You get 25 miles of range per hour of charging at this rate. A full battery takes 8.4 hours from empty. Buying a bigger charger only generates heat and empties your wallet.
What the install involves
Hook your home charger to a 50 amp breaker on a dedicated circuit. The system uses a NEMA 14-50 outlet. Hardwiring works too, but a plug-in unit gives you portability if you move. Hire a licensed electrician for the install if you lack experience with high voltage panels.
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
- Can I use a standard wall outlet?
- You can plug into a standard household outlet for Level 1 charging, but it takes 56 hours to reach a full battery. That method yields only 3.7 miles of range per hour. Stick to Level 2 for daily driving.
- What plug type does the car take?
- The vehicle uses a J1772 connector. Many 2025 plus vehicles ship with a NACS port but include a J1772 adapter, so a J1772 home charger still works. Confirm your car port before buying.
- What do the EPA charge time numbers mean?
- The EPA lists an 8.2 hour charge time alongside the car's 8.4 hour max rate. The EPA test does not always run at the car's peak AC rate, which accounts for the minor difference.
- Do I need to buy a specific brand of charger?
- Any unit rated for 40 amps with a J1772 plug works fine. Look at products like the Grizzl-E Classic 40A or the Home Flex NEMA 14-50. Both match your onboard charger limits.
Other vehicles
Charging times derived from EPA data for the 2025 Mercedes-Benz EQB 350. Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.