It was originally thought that it should be the “Optimized Charge Limit” function specially prepared for Apple Watch Ultra with more power. With the discovery of watchOS 10, which is still being tested by developers, it will Can be enabled on other watch models. Continue reading Apple’s release of Apple Watch Ultra functions to Series 6 / 7 / 8 / SE to extend battery life even further. 
▲Image source: Apple
Apple puts Apple Watch Ultra functions down to Series 6 / 7 / 8 / SE to extend battery life
In the past, the battery life of the Apple Watch, which was often joked and “redefined the day”, gradually improved after Apple gradually improved through the power of chip evolution (Google shows it as: working hard), and it seems that it has gradually gained some leeway – or should be said, yes Machine learning will try to find the margin for you.
Perhaps because of this, it was originally thought that it should be the “Optimized Charge Limit” function specially prepared for Apple Watch Ultra with more power. With the watchOS 10, which is still being tested by developers, It was also found that it will be enabled on other models.
Compared with the original charging optimization function, the optimal charging upper limit function will further analyze your daily life conditions to prolong the life of the battery as much as possible – that is, follow the principle of not charging to the fullest or not continuing to be close to full The principle of the state of the battery is better. According to the official description, “This feature will learn from your daily usage to determine when to charge to the optimal limit and when to fully charge.”
▲Image source: Belkin
This feature is enabled by default on Apple Watch Ultra and was previously limited to this watch. It is reported that the watchOS 10 Beta version has been opened to the series including Apple Watch Series 6, Apple Watch Series 7, Apple Watch Series 8 and Apple Watch Series SE.
Basically, as long as this function works normally, theoretically you should not notice any troubles to your daily life. And in fact, when you throw the watch on to charge, you will also see the special charging symbol below, which means that watchOS determines that you should not need to use it for a long time after charging this time. Therefore, if you are going to go out for a long time next time, you can also click on this screen to force the selection of “full charge immediately” to fully charge the Apple Watch directly.
According to the official instructions, the optimized charging limit will only be enabled in places where you usually stay for a long time. If it is in the state of travel, this function will not be turned on. After turning it on, you may find that your Apple Watch may not be fully charged on certain days during normal use.
It means that the Apple Watch Ultra has double the relative battery life. Other models are only charged to 90% or even 80%, and the power is reduced by 10% or 20%. If you feel that you may be more likely to encounter temporary outings and worry about the power shortage. You can also follow the steps to completely turn off this function. The steps provided by the original factory are as follows:
1. Open the “Settings” app on the watch.
2. Scroll down and tap “Battery”.
3. Click “Battery Health“.
4. Turn off “Optimize Charging Limit”.
5. Select “Close until tomorrow” or “Close”.
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