Zeke; J1772 does not have a common wire, just the two hots and ground. If you try to use the ground for 120V you will trip the GFCI in the EVSE. You will probably need a 2-1 step down transformer to run your 120V loads.
I used a universal power supply to run all my interlocks and fans off 12V when plugged in, so there is no need of 120V. Charging the 12V battery is the part I have not gotten to yet. I suppose my PSU could trickle it so it has enough to turn on the DC-DC contactor. On Wed, Jul 10, 2013 at 7:11 PM, Zeke Yewdall <zyewd...@gmail.com> wrote: > I am doing a similar thing to the EV-bug that I'm upgrading -- Elcon charge > (1500 watt) so it can run off a heavy gauge extension cord from a regular > 120vac socket, and the J1772 socket for using the public charging stations > in town. I'll have a heavy duty DPDT toggle switch near the two inlets > that will switch between the two, so either it will send 240vac down to the > Elcon, or 120vac down, but not parallel the two inlets (to avoid live > contacts on the unused inlet while using the other, the 120vac inlet is > male contacts, so it's a bit less protected than the J1772). The only > question is exactly how to get 120vac out of the J1772 for the aux battery > charger which is 120vac only, and the vent fans for the battery compartment > which are 120vac, and the safety relay interlock, which has a 120vac coil. > I haven't gotten to that part yet... > > Zeke > > > On Wed, Jul 10, 2013 at 7:43 PM, Mike Nickerson <m...@nickersonranch.com > >wrote: > > > Hi Peter, > > > > I have a similar Elcon charger and went through the same questions. The > > charger can switch automatically to the voltage on its inputs. It took > > some > > wincing the first time I plugged it into 220V, but it did work fine. The > > fans are noticeably faster and louder on 220V, since the charger power > > output is higher. > > > > You could make an adapter cord, but I was nervous about having a cord > that > > had 220v pins on one end and 110v socket on the other end. In the wrong > > hands, this could be used to destroy 110V appliances. Kept out of those > > hands, it would work fine, though. > > > > I went a slightly different route. I put a connector on the car that > was a > > little unusual. I chose a 250V/30A twistlock connector. It was a > little > > tricky finding the flanged connector I needed for the car, but I found it > > mailorder. I wanted the male pins on the car so the cord would have the > > female end. The female twistlock was commonly available (Home Depot). > > > > I then made two pigtails. One was 110V male to twistlock female. The > > other > > was 220V male to twistlock female. I keep the 220V cord at home and > carry > > the 110V cord in the car. Some care was required on the 220V cord. The > > cord > > on the charger is positive, negative, and ground. Luckily, my outlet was > > wired that way also (hot, hot, ground). If your outlet is wired as split > > 110V circuits with a neutral, care would be required because the third > wire > > to the charger should be ground instead of neutral. The 220V plug and > > socket > > are different between hot, hot, neutral and hot, hot, ground. > > > > On my installation, I wired the ground on the charger and outlet to > > chassis > > ground for safety. > > > > The flanged twistlock connector is shown on my evalbum page. > > www.evalbum.com/2778 > > > > The connector in the car is a NEMA L6-30P. I like this because no high > > voltage is present on any pins, no matter what is plugged in (or not). > > > > Mike > > > > > -----Original Message----- > > > From: ev-boun...@lists.evdl.org [mailto:ev-boun...@lists.evdl.org] On > > > Behalf Of SLPinfo.org > > > Sent: Wednesday, July 10, 2013 9:30 AM > > > To: Electric Vehicle Discussion List > > > Subject: [EVDL] using dual voltage charger > > > > > > Hi folks, > > > > > > My Quick Charge Select-A-Charge charger is getting old as are my lead > > acid > > > batteries in my S-10 http://www.evalbum.com/3739. I've been using > them > > > for about 2 years and have about 450 cycles on them. > > > > > > For the past several weeds the charger never seems to get up to the > > target > > > voltage. The display seems to get stuck at about 55-60% (varies a > little > > from > > > one day to the next) and then it just times out after about 11 hours. > > > Using my DVM it looks like it's hitting about 135V or so which is quite > > low for > > > my 120V pack. Clearly I'm undercharging my batteries. I sort of knew > > this > > > would happen as I bought the charger used and it's only rated for > > batteries > > > up to 150 AH and mine are 170 AH Trojan T-875s. It also only puts out > > 10 > > > amps at 110V so I may have been undercharging since day 1. > > > > > > Anyway I ordered and have now received an Elcon 2.5KW HF/PFC charger. > > > It's supposed to run on both 110V and 220V. I ran it last night on > 110V > > and it > > > seemed to work (though the voltage never seemed to get above 140V on my > > > 120V pack - should go to about 165V according to the Trojan algorithm > > it's > > set > > > for). I suspect that the 10 amps it puts out at this voltage just > isn't > > strong > > > enough for these older batteries. So I'm hoping that running it at 220V > > (which > > > should put out about 18A) will do a better job. > > > > > > My question is this. The charger comes with what looks like a standard > > 110V > > > male plug for AC input. How do I hook this up to 220V? There is > nothing > > > about this in the very minimal manual that came with the charger. > > > Do I actually need to change the plug on end of the AC cord? Or is > there > > > some kind of adapter I can buy so I can use both 110V and 220V as > > available > > > (that was why I bought this one). I'd like to be able to use public > > charging > > > stations occasion for example. > > > > > > - Peter Flipsen Jr > > > -------------- next part -------------- > > > An HTML attachment was scrubbed... > > > URL: <http://lists.evdl.org/private.cgi/ev- > > > evdl.org/attachments/20130710/60990ce4/attachment.htm> > > > _______________________________________________ > > > 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) > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130710/561981dc/attachment.htm > > > _______________________________________________ > 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) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130710/644a3b41/attachment.htm> _______________________________________________ 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)
