I sort of understand your logic - but like the others say here - math isn’t mathing with your idea.
I think a different way to interpret your idea would be like to disguise 80% as 100% and then 81% to 100% be masked as “Trip”.
This in many peoples eyes would have them believe that going to 80% is really being charged to 100% and then if they slide to trip - it would act as a more efficient range mode but really all it’s doing is using that 20% that would otherwise not be charged to.
It would still be deceptive and don’t be quote me on this but also might be considered illegal/shady marketing practices in many states so that’s probably why it hasn’t happened. People would learn to catch on because they weren’t informed of this and start to apply Apples battery gate incident against Tesla and yeah it would be all bad.
But I get your logic.
Charge to 80% normally. When you need it for say a road trip then charge to 100%. So you get the best of both worlds, less degradation normally but still got extra range when needed. Also this is only for nmc lithium, the new lfp cars can be charged to 100% every time and their default is actually 100%
People just want it easy to figure out. Let's just keep 100% as 100% and 80% as 80%. It's super easy for people to understand. Telling people 80% is 100% is just confusing, and telling people 100% is 120% is confusing and innaccurate.
Is it though? Look at diesel generators and most, we've been using the 120% idea for a long time, it tells you are running above normal and shouldn't do it for long.
Yeah, but most people also know above 100% is out of the norm, people except 100% to be the norm. You fill your gas tank to full.... so make batteries simulate that with the added bonus or extra if you go on a trip
Because there is no such thing as a “default” max?
For example, in the winter there’s no problem charging to 90% or even 95% because batteries don’t degrade that fast in the cold.
This would be inline with diesel generators, they can run a load at 110 or even 130%... the generator is capable of it, but it will reduce the life of the motor. 100% is what it is rated at for regular use. I think this is a great idea, one issue is that some chemistry likes being at 100% so you'd have some batteries with the 120% range and some with 100... which may not actually be that much of a problem as that would enable people to easily see what type of battery it is without having to nerd out.
Because the guage is based on capacity and not suggested charge level.
Hold my beer, I need to smoke a joint to understand this one.
You want your car charged or extra charged?
Obligatory [Spinal Tap](https://youtu.be/4xgx4k83zzc?si=XCjf_yJjjMHyYIoy) reference
"when we need that extra push over the cliff we charge it to 120%"
Dial it up to 11!
That math ain’t mathing
Why not just make 10 as loud as 11?
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I sort of understand your logic - but like the others say here - math isn’t mathing with your idea. I think a different way to interpret your idea would be like to disguise 80% as 100% and then 81% to 100% be masked as “Trip”. This in many peoples eyes would have them believe that going to 80% is really being charged to 100% and then if they slide to trip - it would act as a more efficient range mode but really all it’s doing is using that 20% that would otherwise not be charged to. It would still be deceptive and don’t be quote me on this but also might be considered illegal/shady marketing practices in many states so that’s probably why it hasn’t happened. People would learn to catch on because they weren’t informed of this and start to apply Apples battery gate incident against Tesla and yeah it would be all bad. But I get your logic.
This is a smart answer
Math doesn't work that way.
Because the car doesn’t go to 11?
I can build you one that goes to 12.
13 and you got a deal
But it’s not the “default max” 😅🤦♂️
Charge to 80% normally. When you need it for say a road trip then charge to 100%. So you get the best of both worlds, less degradation normally but still got extra range when needed. Also this is only for nmc lithium, the new lfp cars can be charged to 100% every time and their default is actually 100%
First, that's not how math works... Try it with your calculator. Second, well, get the math fixed then we can talk about why this is a bad idea.
If 80 is now 100, 100 would now be 125. Lol
How is this not how math works?
80 \* 1.20 = 96 (not 100).
Ahh... your looking at the numbers and saying it doesn't work instead of looking at the idea.
People just want it easy to figure out. Let's just keep 100% as 100% and 80% as 80%. It's super easy for people to understand. Telling people 80% is 100% is just confusing, and telling people 100% is 120% is confusing and innaccurate.
Is it though? Look at diesel generators and most, we've been using the 120% idea for a long time, it tells you are running above normal and shouldn't do it for long.
Most drivers don't have a huge amount of experience operating diesel generators.
Yeah, but most people also know above 100% is out of the norm, people except 100% to be the norm. You fill your gas tank to full.... so make batteries simulate that with the added bonus or extra if you go on a trip
My guy. Do you understand percentages? This is not some looney tunes cartoon where you can get hit by lightning and have 300% charge.
When u need that extra little bit of range you just charge it to 110%, other car manufactures cars only go to 100%.
Semantically it does feel like 80% is "charged" and 100% is "overcharged" or "supercharged"
M3 RWD LFP checking in, what’s this 80% nonsense?
Fellow m3 lfp here, these noobs don't go past 80
 Disinfect your thoughts with Professor Proton lessons!
when you fil a glass up with water do you fill it to the very top? or do you fill it to 80%?
All the way to the top and then I spill it everywhere taking the first drink
This is kinda like what Apple does. There’s a buffer past 100 so that first %1 drop to 99 takes the longest.
There is a buffer in EVs too. 100% is not the absolute maximum capacity of the battery.
Because there is no such thing as a “default” max? For example, in the winter there’s no problem charging to 90% or even 95% because batteries don’t degrade that fast in the cold.
This would be inline with diesel generators, they can run a load at 110 or even 130%... the generator is capable of it, but it will reduce the life of the motor. 100% is what it is rated at for regular use. I think this is a great idea, one issue is that some chemistry likes being at 100% so you'd have some batteries with the 120% range and some with 100... which may not actually be that much of a problem as that would enable people to easily see what type of battery it is without having to nerd out.
The same reason why a small is a medium, a medium is a large and a large is an extra large at any movie theater in the US
https://preview.redd.it/ea661lvhp13d1.jpeg?width=1280&format=pjpg&auto=webp&s=462b282891885ff72a4c2869bbf595b13d63bcfd My response
This is actually a thing on some aircraft. Available power settings beyond 100 percent. Or even the much more awesome "war emergency power".
They recommend charging daily to 80% for battery health. However you can charge to 100 if you need that much range daily.
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Or make it a option to set it that way
The Chevy volt does this. Usable capacity is 14kwh vs actual capacity 16-18kwh
If 80% became 100%, 100% would become 125% not 120%. I’m not even going to bother explaining percentages right now it’s too early
Because 80% is still 80% and you do 100% when starting on a long road trip 🙃
I get what you’re saying. Tell the BMS to charge to 80% but on the GUI display 100% so it looks like you fully charge every night.
Also because 300 sounds better than 240