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Gel and lithium-ion tech could enable 1000-mile EV range on one charge
(interestingengineering.com)
This is a most excellent place for technology news and articles.
What car did you end up getting?
Ford cmax, only gets about 20 miles on the stock battery. I don't expect anyone to make a better one, and iirc Ford only sold like 1 model year with an upgraded (20%) battery.