And that is why in the Tesla if you repeatedly charge to 100% it pops up a warning explaining why you shouldn't do this everyday. Unlike it a phone, which could do this but don't because they want your battery to degrade so you buy a new phone sooner. True, but if you really need the range, or are taking a long break for whatever reason it is a good option to have rather than a car that just doesn't give you this option. The other EV models will also taper off as well. Even the Prius plugin and prime do this. Mike
Exactly my point. The only reason you care about charging to 100% a lot or not is longevity (assuming safety isn't an issue) Properly controlling the battery temperature is also improving longevity...as well as other parameters. For example, the Tesla will automatically pre-condition the battery prior to arriving at a scheduled Supercharger stop to optimize charging time. Who else does this? Mike
Tesla's pre-conditioning hurts battery longevity in favor of charging a bit faster. Another example of how temperature control and float voltage at full charge are different and unrelated strategies.
Gosh darn! My lying eyes, the facts and data, the Tesla in my hands says this claim is inaccurate. Buy a Tesla and prove it. I own a Tesla and CANbus monitor that shows pre-conditioning works great! You may want to reconsider making inaccurate claims you can not document and prove. Bob Wilson
So your bottom line is that NOTHING Tesla does, is or can be good, but companies like Ford with their Mach E Mustang have superior technology and are great. So the conclusion must be that the Ford is going to outsell the Model Y by huge amounts. The great sales people at the Ford dealers are going to educate the public on how the inferior specs of the Mach E are actually a better deal than the specs of the Tesla. Sure. Mike
Consumer Reports - the paragon of knowledge? Wasn't so many years ago they were bagging on the prius too - so - does that mean it must not be a good buy either?
"I'll stick with my horses until the quality of the woodwork on those new horseless carriages is better." "I'll stick with my Batteries until the quality of the panel gaps on those new cold fusion cars is better." Some people are still thinking the pretesla conventional wisdom. Tesla has turned that upside down. Not: High allowed state of charge enables longer range rating, but shorter battery life. But this: Longer range enables longer battery life and high allowed state of charge.
What the heck is going on with Tesla's stock? I don't hold any, not my thing. But any stock doing this rollercoaster would have me er, scratching my head.
This thread has become a train wreck. Actually it started off that way. Not sure I was drawn in to reading this tirade by one of the most arrogant people I have ever come across on the internet. And that is saying something. So glad there are wiser minds here with the fortitude and energy to refute his constant half truths and general surly demeanor.
As long as there are graphite anodes inside these batteries, a high state of charge will reduce battery life.
Constantly running an ICE car until the tank is really empty will shorten the fuel pump's life. Yet the manufacturers haven't installed preventive features that shut down the car with a couple of gallons still in the tank to protect it from users. They don't even have a warning about potential harm to the pump come up with the low fuel light. And the tank range of ICE cars is for running the tank dry.
what? You mean mileage takes a hit turning on weather? Like a gas car? And when you run out of fuel it stops? Like a gas car? That's crazy! Who knew!! Lemy guess ... this is where we AGAIN get to hear about, "thats not as far as my Prime goes in winter - so it can't work ..... because it won't work for meee .... because meeee drives 100's or a thousand mile trip & i don't wana stop for ½hr or more .... so it won't work!" Yet buyers keep buying. That's got to be frustrating - knowing it won't work - & yet 100's of 1,000's of peeps - too dumb to understand. .
Part is the SHORT squeeze but the other are institutional investors who finally got a clue. Bob Wilson
Yes, when one actually does charge to a high state of charge too often. Pretesla conventional wisdom said therefore SOC needs to be severely limited. Correct in theory. In practice, Tesla found that with a car with a longer range, the vast majority don't need to charge to a high state of charge the vast majority of the time. After monitoring telemetry data from thousands of cars for millions of miles, they found that they could allow high SOC for the occasional long trip, because the vast majority did not charge so high and so often as to reduce battery life below acceptable levels. Additionally, the good cells, the good battery management, and the good thermal management, which contribute to the longer range, also help make the Tesla battery life long enough to overcompensate some loss from occasional high SOC. Everything else being equal, higher allowable SOC does reduce battery life. But with something not being equal, namely longer range, the actual SOC is reduced despite the higher allowable SOC.
In practice, I charge to 66%, 154-160 miles, so I have 'head space' for regeneration energy. This is the most efficient practice around town. Only when leaving for a trip, do I fully charge overnight, 236-240 miles. Bob Wilson
Thank you for the real life example, Bob. And I note that Bob does this already with a standard range plus, not a long range Model 3.
