Quote:
Originally Posted by Piwoslaw
Extra weight of a 36/42V system? Many cars already have 2 batteries (first example off the top of my head is the Peugeot 607) as 1 would have a hard time with all the electric/electronic gadgets. One more battery in a 2-3 ton luxury car or SUV will hardly make a difference. In fact, the extra 20-40 pounds would hit FE hardest in city driving, where the gains from an engine start-stop or mild hybrid system would be largest.
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Provided you need that much more battery, of course. You can always build a battery with 3 times as many cells, but with each cell 1/3 the size.