118 comments on Energy Grades and Historic Economic Growth
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118 comments on Energy Grades and Historic Economic Growth
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I could see swappable batteries for fleets, like taxis, which rarely get parked for 10-20 hours per day.
Otherwise, too much trouble. Batteries are charging faster & faster these days.
And indeed the Modec - a commercial delivery van - notes it has easily-swappable batteries.
A 53kWh battery (like in Tesla's car) hooked up to a regular 220V, 20-amp circuit could theoretically recharge from dry in about 13 hours, adding ~18 miles/hr of range. From the sounds of it, it's a little slower than that, but not much.
Considering that the average commute to work in the US is just 16 miles, that's only 2 hours of recharge time per daily commute.
The typical dryer circuit is more like 30 amps.
If you're not afraid of welding cable, it's certainly possible to feed 500 amps or more over reasonably flexible wires. The Tesla Roadster battery pack operates at 375 volts nominal. If you could push 500 amps into it, you could put 53 kWh into the batteries in 17 minutes.