Thanks Willie for your corrections, updates, & comments. -my comments below:
On Wed, Feb 26, 2014, at 05:24 AM, Willie2 wrote: ... > The Tesla SuperChargers (not "superstations" -Correction made. I've seen the right term SuperCharger used, but I typo'd the wrong one ... > ...do indeed pump out 120kw (used to be 90kw) maximum. It is > rumored to soon go to 150kw. The cables are slender. They do heat up > slightly. It appears that the connector on the Tesla accepts 240vac for > the onboard chargers OR somewhere around 400vdc when plugged into a > SuperCharger. I think there are only three electrical contacts in the > connector. That is one reason for the compactness. At a SuperCharger, > full power may be applied only when the battery is below about 1/2 > capacity. The charge power tapers as the battery fills. -I did the charge current would taper, but didn't know at what SOC the EVSE decided it would allow full charge current to flow. I wonder if the connector gets warm/hot at full current flow(?) > I don't have experience sharing a SuperCharger transformer (which > supports two charge stations) but I don't expect the cut back in power > to be very significant since max power is applied only when batteries > are very low. I expect that two nearly empty Teslas can share a > transformer and still get fully charged within about 1.5 hours. -Perhaps this is the reason for the patent, as though the schematic was fuzzy, it looked like AC power could be shifted between station stalls. > "Twin" on board chargers are available as an option. A single charger > can pull as much as 40 amps at 240vac (10kw) and a twin charger can pull > as much as 80 amps. The actual current pulled is mostly dependent on > the source. The car senses the type of adapter being used and, > apparently, voltage to adjust current demand. Also, the operator can > manually lower the current demand. Typically, a Tesla might charge at > 40 amps on an RV outlet and 30 amps on a J1772. I haven't seen one but > apparently Clipper Creek makes a J1772 that can supply 70amps; it > should supply the full 40 amps to a single charger and almost full > current to a twin charger. The EMW "JuiceBox" should also be able to > supply a Tesla up to 70 amps. Given the rareness of charging > opportunities with more than 40 amps, I did not buy the twin chargers. - I knew this, but did not mention it as I was focusing on Tesla's level-3 differences and abilities. I know if I were to buy a Tesla-S, I would go for the dual on-board charger if I could ID where the 100A L2 sources were. Perhaps the Tesla forum has built a list of where they are. > Tesla is soon to offer a chademo adapter. - I had seen this http://shop.teslamotors.com/products/chademo-adapter but I did not mention it because it is still listed in the "coming soon" category. > I believe I've previously posted my trip report. It pretty graphically > demonstrates the difference SuperChargers make. > http://www.austinfarm.org/homegrown/tripreport.html > > When I bought my Tesla, I had no real expectation of the SuperCharger > network coming into existence. I have been VERY pleasantly surprised. > It seems that Tesla has fulfilled essentially all promises made. They > are now highly credible in my estimation. I completely agree with the > Consumer Reports evaluation of Tesla. It is the best car I have owned. > I'm at about 35k miles now. - I am wondering if Tesla will offer a SuperCharger ability option on the coming Model-E that consumers can opt to buy, same as Leaf buyers can opt to buy a CHAdeMO port? I think that would be wise, as it can only help with sales. I also understand that the Tesla-E will be targeting the buyers that want a less costly Tesla and may opt to not want pay for the SuperCharger port and its use-fee. I have not read anything on if that is going to happen nor what it will cost the consumer. I look forward to knowing it :-) {brucedp.150m.com} -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Fast-Times-SuperCharger-High-tp4668135p4668137.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ 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)
