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Originally Posted by Ohio Enthusiast
A Seven weighs in at about 1,200 lbs, so the battery could be smaller for similar range and performance. Battery tech does improve, specifically Wh per kg. The original Roadster had 117 Wh/kg, today we're at around 300 Wh/kg. This would mean a 50 kWh battery would weigh 166 kgs instead of 427 kgs. That's on par with engine/transmission/gas. |
I've never heard of an EV battery being that light. The 40 kwh Leaf battery is 300kg, the 62 kwh is 400kg. The standard range model 3 50kw is over 300kg.
I found this little excprt too, though I have been seeing energy density ratings of newer batteries to be a bit better(assembled weight energy density over 200wh/kg) but this is from 22'.
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For example, the estimated pack level energy density of the Tesla Model 3 is ~150 Wh/kg, while the energy density of the individual cells used in the pack, as reported by Panasonic, is ~265 Wh/kg
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