Quote:
Originally Posted by Martinjlm
Hopefully you’re not an engineer. Then maybe olrocker might actually believe what you say.  |
I'm Schrodinger's engineer. To my mechanical engineering friend I'm not an engineer. To me, eh, it depends on the day.
Quote:
Originally Posted by Iron Lung Jimmy
He has a point.
I AM an engineer so I get the whole 80% thing but in my engineer's mind I'm thinking they should have made "full" (100% on the gauge) only 80 % of battery capacity. People fill up and owner and battery are happy.
They should also tell people that you can fill it up to 120% (100% of capacity) on occasion but you shouldn't do it too often as its not good for the battery. That way the nurse, and my wife, are not confused.
Telling even me, who understands it, that I should only fill up to 80% elicits a "Then why the f*%k don't you just call 80% 100%?" response. Telling my wife that you should only fill up to 80% elicits the question "Why?". When explained she asks the legitimate question "If it's bad for the battery why do they let you do it?"... which may be the best question of them all.
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Ultimately 80% vs 100% vs >100% choices and which is the best seems to be a matter of preference, like whether a tiptronic style shifter should shift up when pushed forward or shift down.
Although I can understand why people think it is stupid, and may find it more logical to do a choice between 100% and >100% instead of 80% and 100%, but I personally find more logic in using the 80% and 100%. The car is designed around using that 100% charge, and warranties and expected lifetimes of the products should be based on that. Now you have the option of limiting charge to 80% to get better performance (at least charging wise) and better longevity.
Given that iOS and Android both use the 80% limit terminology now, I'd say it's as close to a standard that we will get (for lithium batteries at least) and I think it would be worse to change it.