How To Turn Apple Watch Off Battery Reserve. To turn on Power Reserve. In this mode the Watch continues to function as a timepiece only keeping and displaying the time.
Learn how to maximize your battery life and lifespan. This works when theres enough battery life for booting. Hold and press the side button until the Apple logo appears.
Turning On Power Reserve Mode on an Apple Watch.
One helpful tip when you approach the lower bounds of battery remaining is to switch into Power Reserve Mode on Apple Watch. If your Apple Watch went into Power Reserve on its own then you may just need to charge your Apple Watch first and then power it back on. The watch then boots into normal mode. To turn off Power Reserve mode restart your Apple Watch.
