The iphone 11 has a 3110 mAh battery. The iphone 3 had 1220 mAh. I don't even remember the last time my phone died on me unexpectedly.
That is not exactly true. OLED can be very efficient. Not just in Dark Mode, but you need to be aware of those pitfalls and optimise for it. Since in overall package the Display is roughly the same power but you get much better quality.
Not to mention there are at least 3 - 5 years roadmap of technology in the pipeline that makes it even more energy efficient and thinner. ( Thinner equals potential for larger battery )
On top of that processors are faster, applications and sites are hugely more intensive to render, and the hardware (mainly antennas) suck up much more energy.
The ARM11 in the iphone 3 used <1 watt. The A13 in the iphone 11 uses 6 watts.
But of course modern smartphones do a lot more, and I spend lots more time with my smartphone as well.
Batteries aren't a feature to most people.
Also there's lots to be said about the scope of what most 'phones' do these days. The batteries are powering serious computers rather than just phones.
I don't think you're wrong, I just am not entirely clear on what claim you're making. I'll venture based on context that the cost you're talking about is either electrical charge or time, but it's very unclear what benefit you're talking about.
One could equally argue that the fact we don't have a million mile battery already suggests that there may be intractible problems to solve.
Dahn's research is so well respected because he was incredibly good and thorough in measuring tiny amounts of heat and voltage changes in batteries so that you could trace their degradation over a much smaller number of cycles, then try them out at longer scales. Tesla has been funding much of his lab. There are very few people who can do this kind of research outside his lab, and IMO he's a wizard who will end up with a Nobel if he makes a few more big contributions.
The bottom line is that the only way to really tell if a battery will last a year or a decade is to watch it for a year or a decade. No amount of technology lets you forecast the future with perfect accuracy, and battery longevity testing takes time. That's the only reason we don't have a million mile battery.
That would be a good argument if batteries had been stuck for decades at a much lower limit. But the fact is their lifetime has been steadily increasing, and will reach a million miles within a few years at most.
A 1 million mile battery is kinda like fusion. Once it happens there is no going back so I don't think that failing to solve this problem is a blow to EVs.
I don't know whether to believe this, but he has the motive, opportunity, and is definitely present at the crime scene.
I think "free truck" operated to design specifications constitutes cost effective.
There is a prototype cybertruck, and Tesla is about to announce the location for the factory to build them. It will be either Tulsa, OK or just outside of Austin, TX.
Maybe because the cost of devices have skyrocketed and the battery dont last any longer... And in addition to that, you can no longer replace batteries.