What EV Charger Do You Need for a 2025 Lexus RZ 450e?
Thirty-two amps is the peak speed for your car. Buying a larger Level 2 unit is a waste of money because the vehicle cannot draw more power. You need a 40 A breaker to feed the recommended 32 A equipment.
The numbers
| Maximum AC charging rate | 6.6 kW (32 A) |
|---|---|
| Charger size to buy | 32 A |
| Circuit breaker required | 40 A |
| Outlet / connection | NEMA 14-50 outlet on a 40 A breaker, or hardwired |
| Charge port | J1772 |
| Full charge on Level 2 | about 10.3 hours |
| Range added per hour (Level 2) | about 21 miles |
| Full charge on a 120 V outlet | about 47 hours |
| Range added per hour (120 V) | about 4.6 miles |
| EPA rated range | 220 miles |
| Energy for a full charge | about 68.2 kWh at the wall |
Why 32 amps and not more
Your onboard charger maxes out at 32 A and 6.6 kW. Hooking up a 48 A or 80 A charger will not make the battery fill any faster. The car takes what it can handle and ignores the rest. Stick to the 32 A rating to match the vehicle specs exactly. You get 21 miles of range per hour at this rate, refilling the 68.2 kWh battery in 10.3 hours.
What the install involves
Run a circuit using a 40 A breaker. Land the wires on a NEMA 14-50 outlet or hardwire the unit directly to the supply line. Call a licensed electrician to pull the wire and check if your main panel has spare capacity for the load. Hardwiring removes the potential failure point of a mechanical plug outdoors.
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 Level 1 charger?
- Yes, but it is painfully slow. Level 1 adds 4.6 miles of range per hour and takes 47 hours to reach a full charge.
- What connector does the car use?
- It uses a J1772 connector. Many 2025+ models ship with a NACS port and include an adapter, so confirm your physical port before ordering.
- Why does the EPA charge time differ?
- The EPA test took 10.0 hours instead of the exact peak math of 10.3 hours. Standard testing parameters cause slight variations in reported times.
- Will a 40 A charger damage my car?
- No. Chargers supply power based on what the vehicle requests, so a 40 A supply will safely throttle down to your car's 32 A maximum limit.
Other vehicles
Charging times derived from EPA data for the 2025 Lexus RZ 450e (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.