Gasoline energy content | 1 US gallon | 36.6kWh thermal |
generator efficiency @ 1kW | 7.5% | 2.745 kWh AC |
EV1 convenience charger efficiency | 55% | 1.5 kWh DC |
battery efficiency | 85% | 1.275 kWh DC |
EV1 propulsion motor, 7kWDC @ 55 mph | 7.86 miles/kWh | 10.02 mpg |
1 hour driving @ 55 mph | 7 kWh DC from battery |
Required DC energy from charger | 8.235 kWh |
Charger output power | 660W |
Charging time | 12.48 hours |
Total time for 55 miles (driving plus charging) | 13.48 hours |
Average speed | 4.08 mph |
Phil Karn, 8 Sept 1999