EMW's Juicebox has a contactor and a switching AC-DC converter that will likely work well on anything in the 130-370 VDC range, so all you'd need to do is upgrade the contactor. I still have an original Juicebox in the garage that I still have not installed, but I can review it and/or take pics if you want to verify it. I know of most other EVSE that I have seen (mostly EVI) that they have a low frequency (60 Hz) transformer included, so I know for a fact that those will not work on DC. Typically if you take a multimeter and set it on Ohm range and measure the AC input connection (without it being wired up of course), if it shows a very high resistance then it will likely have a switcher supply and work fine on DC. If it shows a resistance lower than 1000 Ohms it likely has a transformer and it is AC only. Of course, inspect the circuit to make sure.
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 http://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 Robert Bruninga via EV Sent: Thursday, January 07, 2016 1:28 PM To: Electric Vehicle Discussion List Subject: [EVDL] Nominal votage J1772 DC charging I so much want to charge my car from 100 to 300 VDC which I am sure will work fine, since the first thing it does is rectify to DC before any other DC/DC conversion... EXCEPT that you just never know where in the EVSE to car chareger some engineer may have "assumed" AC only so that he could open relay contacts without having to worry about arc suppression. One mistake and you toasted it. But I sure wish MFR's would spec if their J1772 port would accept DC as well as AC. Rememebr almost all modern supplies of any kind are made to cover 100 to 240 VAC and the ONLY reason most of them do not mention that the can also work on DC is because they did not do UL TESTING for DC. And the reason they did not do that is because there is NO MARKET (yet) for using 100 to 330VDC at home... though EVERY universal supply with a 100-to-240 VAC rating will almost always work* just fine on 100 to 330 VCD because that is what it is internally when run on 240 VAC. * JUST make sure it does not have an ON/OFF switch in the line, because that will certainly fry the first time you try to turn it off. WHY my fascination with DC, because I have 16 kW of DC solar in my yard that works fine with the grid. But when the grid goes down, I want to be able to tap into any voltage I want and be able to charge the car. Bob, WB4APR -----Original Message----- From: EV [mailto:[email protected]] On Behalf Of dovepa via EV Sent: Thursday, January 07, 2016 4:08 PM To: Seth Rothenberg via EV Subject: Re: [EVDL] Bew Nissan Leaf...and...Level 2 charging That would be a DC to DC converter not a charger. Many AC to DC converters will accept DC voltage I use one in my EV for the 12v out system. It takes the pack DC 160 volts and make 12 volts DC for the auxiliary power. There is a formula to calculate AC to DC equivalent voltage you can Google it. I believe 110 volt AC is equivalent to 170 Volts DC but you would need to check that because this is off of memory. Not all AC devices can use DC you will need to check the specs and maybe design to see if a particular product will work. I imagine it would be costly for a device that puts out 100 amps or so... level 3 DC fast charge is 100 or 125 amps I believe. Sent from my Verizon Wireless 4G LTE smartphone-------- Original message --------From: Seth Rothenberg via EV <[email protected]> Date: 1/7/2016 12:29 PM (GMT-06:00) To: Electric Vehicle Discussion List <[email protected]> Subject: Re: [EVDL] Bew Nissan Leaf...and...Level 2 charging Does anyone know of a DC Quick Charger that will accept DC? Google seems to know of one, for $24,000 - not for me :-) I have 18.2KWh in Thundersky cells that I could use.... Or even a Level 2 charger that will take DC.... Thanks Seth _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at 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/20160107/7cce f9 05/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at 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 Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at 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 Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
