Battery range is based on battery capacity. Longer range is ultimately higher weight compared too a similar or greater range of a i.c.e engine with less fuel load. Gas engines are significantly more efficient than engines made back in the 18th century. Thats a horrible argument considering electric motors & batteries were around in the 18th century and have gone through similar advancements. I. C. E engines are still the most effective over distance and time.
And contrary to this age old argument of advancements in photovoltaic and battery technology. The efficiency in either hasn't increased much in over a decade. Just the rampant growth in usage has increased. The efficiency has come in the way of production and implementation. Not the chemistry.
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