The responses to this post seems to have gone off track, then ended. I'm reviving it as best i can.
Max's question was about upgrading a non DCFC spark to a DCFC capable one. What he was looking at was the 1st responder guide GM published for the Spark EV (google it). It is a bit confusing the way they labelled the charger(s) on pages 8 and 9. I had to read it many times before I figured out what they were talking about (GM, not Max).
Max, the Level 1 & 2 AC input, 3.3 Kw true "charger" is apparently the upper box on left side. The lower right box appears to be, as they say, a junction box for high voltage connections which is needed w/ or w/o DCFC. I think this "box" is likely missing the contactors needed for DCFC.
maxvamp wrote:It looks like the charger and cabling that handles both the 220v charger and the DC charger is the same component.
maxvamp wrote:I am wondering if there is anyone here that could speculate what other issues might be hurdles in converting one of these.
I'll speculate here and if I'm wrong again, I'm prepared for a correction from Norton again. (go for it!) I don't think GM would route cables capable of +/- 40Kw, (400v/100 amps) when the 3.3Kw charger only needs 240v/14 amps to the battery. ("Amps" is the determining factor in cable sizing for those who don't already know) The cabling, contactors, and likely a small PC board may make the (yes- Dangerous) conversion. 400 volts across your heart is lights out folks! I would think this difference would be explained in the service manual quite clearly.
Did you get the Helms yet Max? If so, maybe you can answer your own question for me. Sure would appreciate the answer since there are very few 2014 w/ DCFC to choose from at the moment.
Edit: After re-reading this, I remembered the possible software changes that GM may not allow.....?