 A.T. Ray says my watch, now running WatchOS 10, told me the other night that it was optimizing its charging. Of course, he says being ready for bed, I wasn't sure what it meant. Now my Apple Watch Ultra only charges to 80%, just like my new shiny iPhone 15 Pro. The best feature they have adopted from Android. I rarely use 50% of my battery on my watch. Now it just charges to the right spot and stops. And indeed there is optimized charging not just on the watch for some models. I believe it is Apple Watch SE and then Series 6 and later. So the WatchOS 5 or Series 5 watch that I have is not that. But yeah. Interesting. Yeah, and this is also, this also exists on the iPhone 15 as well that I noticed with my iPhone 15 Pro but I know that it is there for all of them. As Apple said, there's a new, so on the iPhones with iOS 16 and iOS 17, we've had the option to turn optimized battery charging on or off, right? But with the iPhone 15, we have one more option and that is so we have no optimization. We have optimized battery charging which is the old way of doing it where it gets you to 80% overnight and then stops and then resumes charging from 80 to 100 at some point just before you wake up so that it's not just sitting at 100 all the time or for long periods of time, which Apple has determined is not optimal for battery longevity. Now what Apple has added to the iPhone's 15 is a third option that they call the 80% limit. It gets you to 80% and stops. It doesn't go any farther. Does it ever go above 80%? Yes. Apple says with the 80% limit enabled, your iPhone will occasionally charge to 100% to maintain accurate battery state of charge estimates. I don't know where I got charge from. I don't know, I don't know what that is. The new word. Yeah, what is charge? Word of the day, charge-ness. What is charge-ness? Aaron wrote in, he said my iPhone 12 battery was around 84% maximum capacity and it had very little battery life. After deciding I would hang on one more year, I went to the Apple store to change the battery. What I did not expect was that the phone magically became brand new fast. I mean, it was like a snappy new device beating through all the tasks again with iOS 17. He says that I knew that Apple throttled the phones, but I didn't realize how much. Based on this, I would recommend a battery change if your battery's maximum capacity is in the mid 80% range and you notice your phone is being slow. For $93 for a brand new experience, that's worth it. Keep up the good work, Aaron. So that's awesome. That's surprising. I didn't think that this... I knew that this would start to happen at some point. I didn't know that it would happen at 84%.