Chevrolet announced Thursday that its 2020 Bolt EV is getting a 21-mile bump in range, bringing its total up to 259 miles---an almost-10-percent increase compared to the 2019 model. The additional range comes from an adjustment to the Bolt EV's battery chemistry, which resulted in a 10% improvement in the pack's capacity---from 60 kwh to 66. EVs...
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