What EV Charger Do You Need for a 2025 Chevrolet Blazer EV SS?
Electrical panels can deliver massive power, but your Chevrolet Blazer EV SS limits home AC charging to 48 amps. Feeding it a 50 amp charger gets you the maximum possible replenishment speed. You need a 48 amp Level 2 setup to refuel the 120.2 kWh battery overnight.
The numbers
| Maximum AC charging rate | 11.5 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 10.5 hours |
| Range added per hour (Level 2) | about 29 miles |
| Full charge on a 120 V outlet | about 83 hours |
| Range added per hour (120 V) | about 3.6 miles |
| EPA rated range | 303 miles |
| Energy for a full charge | about 120.2 kWh at the wall |
Why 48 amps and not more
The onboard charger dictates your ceiling at 48 amps, drawing 11.5 kW. Pushing past that limit accomplishes nothing because the vehicle refuses extra current. Units rated for 40 amps or lower will only slow down your daily turnaround time. At the peak 48 amp draw, you add 29 miles of range every hour. The EPA test logs a slightly lower 27 miles of range per hour due to standard testing overhead. Empty to full takes 10.5 hours at the maximum rate.
What the install involves
A 48 amp continuous load requires a 60 amp breaker and heavy gauge copper wiring. Forget about standard wall outlets because nothing in a residential home is rated for that kind of continuous heat. Hardwiring is mandatory for safety. Call a licensed electrician to check panel capacity, pull the new circuit, and land the wires securely on the breaker.
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 plug this car into a standard wall outlet?
- Level 1 charging works on a normal household plug, but it only gives you 3.6 miles of range per hour. Filling the battery from empty takes 83 hours this way. You need Level 2 hardware for practical daily driving.
- What plug does the car use?
- The vehicle features a J1772 connector. This model year falls in the industry transition to NACS ports, so check your specific physical port before ordering accessories. You can use adapters for Tesla destination hardware if needed.
- Why does the EPA charge time differ from the maximum rate?
- The EPA rated test takes 11.2 hours instead of 10.5 hours. Standard testing protocols account for grid fluctuations and efficiency losses that occur during normal test cycles.
- Does a bigger charger make the car charge faster?
- No. The onboard hardware caps intake at 48 amps. Buying a 50 amp or 80 amp unit will not bypass this internal vehicle limit.
Other vehicles
Charging times derived from EPA data for the 2025 Chevrolet Blazer EV SS. Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.