Rush, The *power* is 7.2 kW and this means 7200W / 240V = 30A The *energy* is 7.2 kW times 4 hours = 28.8 kWh
See how the units multiply just like the numbers? 7.2 x 4 = 28.8 kW x h = kWh You can also divide (work the other way) so that the energy divided by the time is power: 28.8 / 4 = 7.2 kWh / h = kW Hope this clarifies! Cor van de Water Chief Scientist Proxim Wireless office +1 408 383 7626 Skype: cor_van_de_water XoIP +31 87 784 1130 private: cvandewater.info www.proxim.com This email message (including any attachments) contains confidential and proprietary information of Proxim Wireless Corporation. If you received this message in error, please delete it and notify the sender. Any unauthorized use, disclosure, distribution, or copying of any part of this message is prohibited. -----Original Message----- From: EV [mailto:[email protected]] On Behalf Of Rush Dougherty via EV Sent: Monday, May 25, 2015 1:40 PM To: EVDL Subject: [EVDL] charging numbers The e-Golf has a 7.2kW charger on board and L2 charging will take 4 hrs. So does that mean that it averages 7.5A per hour? My logic - 7200 watts / 4 hrs = 1800 watts per hour, 1800 watts per hour / 240v = 7.5 A per hours. I know that I'm doing something wrong here but I just can't see it. Some help please. Rush Tucson AZ _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
