Getting ready to have the wall charger installed for my new M3 ... I have 3 phase supply, but discovered an existing spare cable to the garage is only single phase (but large conductors). I also have (a 3 phase I believe) solar inverter (SYMO 5.0-3-M) and I'm trying to work out the best play ... Can I still charge at highest amps with single phase or is it better to replace the cable (thats going to be tough) with 3 phase because I'll get a better result? Will using single phase not allow me to "simultaneously harvest" the best result from my solar (ie charging while the sun is shining) because I've loaded 1 phase, but the solar is out on 3 phases ... ? ... Plan to get home storage battery once the prices drop some more. Again, once I get home battery, and want to charge solar --> battery (daytime) then battery --> to car (night time), does it matter if the WC is single or 3 phase?