Re: OT: Battery Technology Update

Michael Johnson wrote:
> Bob Willard wrote:
>> Michael Johnson wrote:
>>
>>> Gene Wagenbreth wrote:
>>>
>>>> Correct my arithmetic if I am wrong.
>>>>
>>>> A 70 KWatt hour battery.
>>>>
>>>> Recharge it in 10 minutes requires 420 KWatts for 10 minutes. Where 
>>>> the heck
>>>> are you gonna find a 420 KWatt circuit. At 120 volts thats about 
>>>> 3500 amps.
>>>> Not gonna do that at home. Lets try a gas station. Five cars wanna 
>>>> 'fill up'
>>>> simultaneously. Station needs 2 MWatts of power coming in. Sounds
like
>>>> a LOT of infrastructure has to be built.
>>>
>>>
>>> My guess is that initially these cars will be commuter vehicles and 
>>> will be slow charged overnight.  Actually, they probably can be 
>>> topped off every night since most daily commutes are well under 120 
>>> miles and definitely under 250 miles.  The beauty of it is the gas 
>>> station can have an electric plug-in next to the pump.
>>
>> Yikes.  Having a high-current source next to a gas pump should cause a
>> few good fires -- just wait until Joe SixPack pulls out the cable when
it
>> is delivering a KAmp or two at 120V.  And, when it is pumping E85 which
>> can't be put out with water, the fire department will have a nice 
>> surprise.
> 
> I'm sure the socket connection will be engineered to hell and back.

    Which is the sort of thing that worries me at times.

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