[RE-wrenches] Lithium-ion battery charging

[Bill Loesch]

Jim, et al,

To further muddy the waters, I have recently seen the approach to quantify electrical power performance in terms of horsepower. 
Insights/comments from those wrenches more knowledgeable in these matters are always welcome.

Thanks,

Bill Loesch
Solar 1 - Saint Louis Solar



  ----- Original Message ----- 
  From: North Texas Renewable Energy Inc 
  To: RE-wrenches 
  Sent: Monday, March 14, 2011 11:45 AM
  Subject: [RE-wrenches] Lithium-ion battery charging


  Wrenches
  I am researching a GT PV installation to power an EV charging station at a new car dealership nearby. After researching l-ion technology and charging information on the www, I see that most references to l-ion and EVs in general refer to battery capacity in kWh instead of Ah. 
  Is kWh the new standard for battery propulsion in cars or is it used muddy the conversion from Ah similar to the cold-cranking amps standard for starter batteries?
  I know kWh battery capacity could be calculated assuming a constant charge/discharge rate but cars will seldom be operated at a constant discharge rate.
  Thanks for some clues 

  Jim Duncan
  North Texas Renewable Energy
  NABCEP Certified Solar PV
  Installer No.031310-57
  TECL 27398
  ntrei at 1scom.net 
  817.917.0527
  www.ntrei.com



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