Level 1 chargers use a standard 120 V outlet and draw only 1,200–1,500 watts, adding 2–5 miles of range per hour. Charging overnight or over a full day is common, but the daily energy cost remains modest.
| Basis | Cost |
|---|---|
| Per hour (while running, 1400 W typical) | $0.26 |
| Per day (8 h/day, 7/7 days) | $2.11 |
| Per month | $64.20 |
| Per year | $770.30 |
| Hourly range (small 1200 W – large 1900 W) | $0.23 – $0.36 |
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