Charge Apple Watch
Set up the charger
In a well-ventilated area, place your charger or charging cable on a flat surface.
Your Apple Watch comes with the Apple Watch Magnetic Fast Charger to USB-C Cable (Apple Watch Series 7, Apple Watch Series 8, and Apple Watch Series 9 only) or the Apple Watch Magnetic Charging Cable (other models). You can also use a MagSafe Duo Charger or Apple Watch Magnetic Charging Dock (sold separately).
Plug the charging cable into the power adapter (sold separately).
Plug the adapter into a power outlet.
Fast charging requires an 18W or greater USB-C Power Adapter. See the Apple Support article About fast charge on Apple Watch.
Note: Fast charging is not available in all regions.
Begin charging Apple Watch
Place the Apple Watch Magnetic Fast Charger to USB-C cable (included with Apple Watch Series 7 or later) or Apple Watch Magnetic Charging Cable (included with earlier models) on the back of your Apple Watch. The concave end of the charging cable magnetically snaps to the back of your Apple Watch and aligns it properly.
Apple Watch plays a chime when charging begins (unless your watch is in silent mode) and a charging symbol 
shows on the watch face. The symbol is red when Apple Watch needs power and turns green when it’s charging. When Apple Watch is in Low Power Mode, the charging symbol is yellow.
You can charge your Apple Watch in a flat position with its band open, or on its side.
If you’re using the Apple Watch Magnetic Charging Dock or MagSafe Duo Charger: Lay your Apple Watch on the dock.
If your battery is very low: You may see an image of the Apple Watch Magnetic Fast Charger to USB-C Cable or Apple Watch Magnetic Charging Cable and the low battery symbol
on the screen. For more information, see the Apple Support article If your Apple Watch won’t charge or it won’t turn on.
Apple Watch Series 9
Apple Watch Series 8
Apple Watch SE (2nd Generation)
Apple Watch Series 7
Apple Watch Series 6
Apple Watch SE
Apple Watch Series 4 and Apple Watch Series 5
WARNING: For important safety information about the battery and charging Apple Watch, see Important safety information for Apple Watch.
Check remaining power
To see remaining power, press the side button to open Control Center. To more quickly check the remaining power, add a battery complication to the watch face. See Change the watch face on your Apple Watch.
Save power
You can save battery life by turning on Low Power Mode. Doing so turns off Always On Display, background heart rate and blood oxygen measurements, and heart rate notifications. Other notifications may be delayed, emergency alerts may not arrive, and certain cellular and Wi-Fi connections are limited. Cellular is turned off until you require it—when you stream music or send a message, for example.
Note: Low Power Mode will be turned off when the battery is charged to 80%.
Press the side button to open Control Center.
Tap the battery percentage, then turn on Low Power Mode.
To confirm your choice, scroll down, then tap Turn On.
You can tap Turn On For, then choose On for 1 Day, On for 2 Days, or On for 3 Days.
Tip: If you have battery-powered devices such as AirPods connected to your Apple Watch through Bluetooth, tap the battery percentage in Control Center, then turn the Digital Crown to see the remaining charge for your headphones.
When the battery level drops to 10 percent or lower, your Apple Watch alerts you and gives you the opportunity to enter Low Power Mode.
For more information about Low Power Mode, see the Apple Support article Use Low Power Mode on your Apple Watch.
Tip: For tips on maximizing battery life, see Maximizing Battery Life and Lifespan at the Apple website.
Return to normal power mode
Press the side button to open Control Center.
Tap the battery percentage, then turn off Low Power Mode.
Check time since the last charge
Open the Settings app
on your Apple Watch.Tap Battery.
The Battery screen shows the remaining battery percentage, a graph that details the recent history of the battery charge, and information about when the battery was last charged.
Check battery health
You can find out the capacity of your Apple Watch battery relative to when it was new.
Open the Settings app
on your Apple Watch.Tap Battery, then tap Battery Health.
Apple Watch alerts you if battery capacity is significantly reduced, allowing you to check your service options.
Optimize battery charging
To reduce battery aging, Apple Watch uses on-device machine learning to learn your daily charging routines so it can wait to finish charging past 80 percent until you need to use it.
Open the Settings app
on your Apple Watch.Tap Battery, then tap Battery Health.
Turn on Optimized Battery Charging.
Prevent apps from refreshing in the background
When you switch to a new app, the app you were using doesn’t remain open or take up system resources, but it may still “refresh”—check for updates and new content—in the background.
Refreshing apps in the background can use power. To maximize battery life, you can turn this option off.
Open the Settings app
on your Apple Watch.Go to General > Background App Refresh.
Turn off Background App Refresh to prevent all apps from refreshing. Or scroll down, then turn off refresh for individual apps.
Note: Apps with complications on the current watch face will continue to refresh, even when their background app refresh setting is off.
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