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by georgerobinson
2605 days ago
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I would quite like to own an EV, but are still too expensive for me! I also read that the batteries do not like repeated full-throttle accelerations as it causes excessive heat build-up and accelerated degradation on the cells. To reduce this the car will often enter limp-mode before then, so it might not even be appropriate for sports/track use. |
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Without providing a specific use case or criteria then it's impossible to say.
> I also read that the batteries do not like repeated full-throttle accelerations as it causes excessive heat build-up and accelerated degradation on the cells
That's true and so is the statement "internal combustion engines used in automobiles produce heat during operation that will cause them to fail after a short period of time". But we know that ICEs don't fail because they have cooling systems, so to do EV's batteries and motors.
> To reduce this the car will often enter limp-mode before then
If someone said "my ICE vehicle won't allow me to red-line it and reduces my max RPMs when it's close to overheating to avoid damaging the engine" would you see that as a bad thing? Would you assume red-lining and engine overheating issues were common when driving an ICE vehicle?
If not, then why do you assume such behavior is bad in an EV?
While it is true that rapidly discharging batteries produces heat, it is also true that most EVs have thermal management in place and most have active temperature control systems for their battery packs. The Nissan Leaf is one of the few EVs that does not have active temperature control systems, their packs are air cooled. Also note that I said "temperature control" and not cooling, Tesla's and other EVs can actively warm their batteries to increase performance.
You should read up on the Tesla Model 3's track mode to get a better understanding of what EVs are capable of: https://www.tesla.com/blog/how-track-mode-works