16 amp EV charger: power, breaker size and range per hour
16 A × 240 V = 3.84 kW · circuit ≥ 20 A (usually a 20 A breaker) · about 13 mi of range per hour at 30 kWh/100 mi
The breaker figure follows the NEC rule that EV charging is a continuous load, so the circuit is sized at 125% of the charger's current (see DOE AFDC: charging at home). This is an estimate, not electrical advice; at 208 V (some apartments) power is about 13% lower.
Range added per hour for popular EVs
| EV | EPA kWh/100 mi | Per hour | Per 8-hour night |
|---|---|---|---|
| Tesla Model Y | 26.5 | 14 mi | 116 mi |
| Tesla Model 3 | 29.6 | 13 mi | 104 mi |
| Chevrolet Equinox EV | 32.6 | 12 mi | 94 mi |
| Ford F-150 Lightning | 47.9 | 8 mi | 64 mi |
| Hyundai Ioniq 5 | 34.5 | 11 mi | 89 mi |
| Ford Mustang Mach-E | 33.6 | 11 mi | 91 mi |
| Kia EV9 | 41 | 9 mi | 75 mi |
| Rivian R1S | 43.2 | 9 mi | 71 mi |
Estimates; assumes the car accepts 3.8 kW on AC. All EVs.
ENERGY STAR chargers rated 16 A (0), lowest standby first
No featured charger is listed at exactly this current; many adjustable chargers can be set to it.