quote="Slow1"... I am not suggesting DC_QC_ at home, rather simply DC charging. The OBC basically converts the AC to DC to charge the battery anyway, I am suggesting save the weight of this in the vehicle and stick it outside. Not "Quick' charging perhaps, but a common port to the car could be used for the slower or faster...
There are threads going back ~four years where the obvious has been posted, that it makes no sense whatsoever to install the AC charger on the vehicle.
Yes, at some point in the future all BEVs (and PHEVs, if they still exist) will accept only a DC charge, either from a public charger or your home charger, designed to simultaneously charge as many BEVs you require.
This is predestined not only by the cost benefits you mentioned, but also by efficiency, as getting the charger off the vehicle enables the
waste heat to be recoverable for other purposes, which will be increasingly important for public chargers, with multiple DC sites, where the
waste heat is currently considered a problem.
Consider the benefits of recovering the hundreds of kW of
waste heat from dozens of fast-charging BEVs at a public charge site, to supply water or space heating to the adjacent businesses.
="Slow1"...Yes, if the market would go this way then existing vehicles may lose out - Frankly I have to assume all of us are likely to find ourselves with obsolete plugs/standards anyway. It is a fact of live in being an early adopter isn't it?
Actually, this is one of the reasons I believe the CHAdeMO DC approach is superior to the SAE combo DC port, which compromises its design for an obsolescent (AC charging) purpose.
So I expect that CHAdeMO has a better chance of lasting as a public standard, at least for a while.
And in ~ five or ten years, the AC charging system on my LEAF may just be something I won't have to worry about fixing if it ever fails, once I have a CHAdeMO DC charger at my home.