steelyman
Moderator Emeritus
I noticed this article on CNBC yesterday. As someone who’s recently replaced a device with a failing battery, I’m interested in getting as much battery life as possible out of the new one. The technique described seems to be one you can apply on your own (schedule permitting).
https://www.cnbc.com/2019/06/12/app...ery-life-with-optimized-battery-charging.html
Apple's iOS 13 website explains what it does:
"A new option helps slow the rate of battery aging by reducing the time your iPhone spends fully charged. iPhone uses on-device machine learning to understand your daily charging routine so it can wait to finish charging past 80% until you need to use it."
Apple's battery website explains that the lithium ion batteries inside of an iPhone can quickly charge up to 80 percent. The remaining 20 percent uses a "trickle charge" that "eases the electrical current to extend battery lifespan."
But, when your phone is plugged in, this trickle charge continues to run in an effort to keep the battery fully charged. That can wear your battery out more quickly.
Apple's new feature will prevent the phone from charging up to 100 percent, and activating the trickle charge, until it thinks you're going to need it. So, if you typically pull your iPhone off the charger at 6 a.m., it'll finish juicing up the last 20 percent just before then, instead of earlier in the night when it might consistently try to keep the iPhone charged at 100 percent.
Doing this is supposed to reduce battery aging and allow you to use your iPhone at peak performance and with a maximum battery capacity for longer. In short, it's good news for people who want to own their phone for several years without having to replace their batteries.
https://www.cnbc.com/2019/06/12/app...ery-life-with-optimized-battery-charging.html