On Sep 12, 2009, at 6:34 AM, Terry Blanton wrote:
Here are the E6 specs: http://www.byd.com/showroom.php?car=e6&index=2
The specifications look totally bogus! The fact they don't use proper capitalization in the physical units might be expected, but either the specs were "developed" by an innumerate person, or the thing is highly misleading, or both.
The specs say it can be recharged using a household electric power socket. Let's not even assume they mean a standard (in the US) 120 V 20 A socket, but rather the biggest socket typically available, a 240 V 50 A socket.
The specs state or imply the e6 uses about 18 kWh per 100 km, has a range of 400 km, and can "quick charge" to 50 percent of capacity in 10 minutes. This means it charges to 36 kWh in 1/6 of an hour, so charges at a rate of 216 kW. This is a charging current of (216 kW)/ (240 V) = 900 A. That is 18 times the current capacity of the largest available home power socket. If they really mean a typical 120 V outlet, then the specs are much further off. The charging current would have to be 1800 A, which is 90 times the current capacity of the largest typical 120 V outlet current.
Now, it might actually be possible to do this, going from some kind of home energy storage system to the car battery, but the connector that can carry 900 A at 240 V or 1800 A at 120 V would be different in the extreme from a home electric power socket. There is no mention for the need to buy a home energy storage and charging unit. If such is required the specs are still highly misleading, at least to me.
Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
