Quote:
Originally Posted by mopaman
I imagine that with the push towards lower emissions overall, they figure there is no point burning gasoline with significant loss of efficiency to recharge a battery above and beyond instantaneous current needs.
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Emissions aside, on a long trip, all holding the battery at a specified level does is emulate a smaller battery which, on a road trip, would be a small percentage of the overall distance traveled. It makes it possible to later precondition or engage the HVAC for occupants at any time during the trip or the next morning where you can't recharge along the way.
While recovering the battery level is a big energy hit, holding it is only a minor impact.