Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: expatpat

Did you read all of what I wrote? Tesla is already introducing a 220-volt charger to cut charge time from 8 hours to 4 hours. Although I certainly suspect that the batteries would have to be configured to take faster charging.


17 posted on 10/27/2009 6:46:16 AM PDT by dangus (Nah, I'm not really Jim Thompson, but I play him on FR.)
[ Post Reply | Private Reply | To 11 | View Replies ]


To: dangus

Your question is not totally ridiculous, although I don’t think the charging time is just a function of the voltage used. I suspect that the time required at 110 or 220 volts is related to the maximum current that can be provided at those voltages. I believe the Tesla uses lithium-ion batteries and, at least in the RC hobbyist world, these are generally considered to be able to be charged safely in a minimum of one hour. I don’t know if charging at that rate affects the lifespan of the battery. Those are also small batteries, typically of a few Amp-hours capacity at most. OTOH, let’s take a 1,000 A-h battery - to charge it in an hour would require a current of 1,000 Amps. That’s a lot of current, which would require pretty big conductors.


29 posted on 10/27/2009 7:10:18 AM PDT by -YYZ- (Strong like bull, smart like ox.)
[ Post Reply | Private Reply | To 17 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson