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apple watch battery drains fast

Starting about a week ago (early July 2021) my Apple Watch races through the battery - it lasts about 7 hours rather than all day. I'm guessing it's a software update flaw, but don't know for certain. Any ideas?

Apple Watch

Posted on Jul 13, 2021 3:59 PM

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Question marked as Top-ranking reply

Posted on Jul 13, 2021 7:15 PM

To understand Apple Watch performance and its relation to your battery, see:

Apple Watch - Battery - Apple

Apple Watch Battery and Performance - Apple Support


“Battery life” is the amount of time your device runs before it needs to be recharged. “Battery lifespan” is the amount of time your battery lasts until it needs to be replaced. Maximize both and you’ll get the most out of your Apple devices, no matter which ones you own. See the "Tips for Apple Watch" section in:

Batteries - Maximizing Performance - Apple


If the battery drains too fast after an update, see all the replies to:

Update 6.2.1 Battery Draining Too Quickly… - Apple Community

Battery Drain since watchos 7.4 - Apple Community

FWIW, in some cases, unpairing the watch, completely erasing it, then pairing and restoring the backup will resolve the battery draining issue after an update. Also, some people have found that simply waiting a few days after an update resolves the battery draining problem.


2 replies
Question marked as Top-ranking reply

Jul 13, 2021 7:15 PM in response to blamethewhales

To understand Apple Watch performance and its relation to your battery, see:

Apple Watch - Battery - Apple

Apple Watch Battery and Performance - Apple Support


“Battery life” is the amount of time your device runs before it needs to be recharged. “Battery lifespan” is the amount of time your battery lasts until it needs to be replaced. Maximize both and you’ll get the most out of your Apple devices, no matter which ones you own. See the "Tips for Apple Watch" section in:

Batteries - Maximizing Performance - Apple


If the battery drains too fast after an update, see all the replies to:

Update 6.2.1 Battery Draining Too Quickly… - Apple Community

Battery Drain since watchos 7.4 - Apple Community

FWIW, in some cases, unpairing the watch, completely erasing it, then pairing and restoring the backup will resolve the battery draining issue after an update. Also, some people have found that simply waiting a few days after an update resolves the battery draining problem.


apple watch battery drains fast

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