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Mercedes is just as vague with battery capacity and charge times, claiming the B-Class can add an additional 60 miles of range in less than two hours when
by sbierwagen 14y ago
Mercedes is just as vague with battery capacity and charge
times, claiming the B-Class can add an additional 60 miles
of range in less than two hours when plugged into a
240-volt outlet.
"A 240-volt outlet" only provides half the information you need-- like specifying the maximum PSI of an air compressor without saying what its flow rate is. A 15 amp 240 volt outlet can only provide half as many watts as a 30 amp one.
The biggest Tesla 240-volt charger draws 100 amps = 24KW.
The Superchargers run at 440 volts and ~400 amps = 90KW.
- ams6110 14y agoThe "smallest" 240V American household circuit would be 30A (e.g. for a clothes dryer). Electric range is 50A. I'm not aware of any common demand for 240V at only 15A.
- sbierwagen 14y agoIt was an example, bro. There actually is a standard NEMA connector for 240V 15A loads-- NEMA 6-15. It's less than common, as you'd expect. (Running a 240V 15A circuit would be easy, all cable is rated to 600V anyway, it'd just be regular 14/2 romex. I've never actually done that, but it's possible. (Clothes dryers and ovens always use 6/3 or whatever, which will let you run 120V components off the hot-neutral circuit. 240V 14/2 would be hot-hot.))