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This iPhone trick gives you an alert when your phone is fully charged

Published Aug 4th, 2023 12:35PM EDT
Apple iPhone 14 Pro Back
Image: Christian de Looper for BGR

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We’re about to watch Apple unveil the brand-new iPhone 15 series some 16 years after the first-generation iPhone’s arrival, and battery life still makes us anxious. Plus, our concerns extend further than just how long an iPhone will last and whether it’ll get us through the day.

We also need to ensure that we take care of iPhone battery health as much as we can. And we do that by charging the iPhone the right way, which means not keeping it plugged in or on the MagSafe wireless charger longer than needed.

In what follows, I’ll show you a trick to alert you as soon as your phone is fully charged.

The correct way to charge your iPhone

Whether or not you use the trick below, you should take advantage of an iPhone battery setting that Apple introduced a while back to protect battery health.

Head to the Settings app, look for the Battery menu, and select Battery Health & Charging. Toggle on Optimized Battery Charging.

Enable Optimized Battery Charging on iPhone.
Enable Optimized Battery Charging on iPhone. Image source: Chris Smith, BGR

This is a key iPhone feature to enable if your charging routine is predictable. If you recharge overnight, for example, the iPhone will pick up your routine and always stop charging the battery when it reaches 80%. It will then finish charging right before you typically wake up, according to your alarm schedule.

How to get notified when the iPhone reaches 100%

I used to have a predictable charging routing for my iPhone until the iPhone 14 Pro came out. The battery lasts about 36 hours, so I usually charge it every other day instead of nightly. That Optimized Battery Charging feature doesn’t work in my favor. Therefore, I manually check the battery level before disconnecting the iPhone from the MagSafe charger.

However, there is a way to get an alert when your phone reaches a full charge, thanks to the Automation feature inside the Shortcuts app. Here’s how to set it up:

  • Tap on the + symbol in the Automation tab
  • Tap the Create Personal Automation button
  • Select the Battery Level option
  • Leave the Equals % option enabled as you slide to 100% (or whatever level you might want it to be)
Setting the iPhone battery level.
Setting the iPhone battery level. Image source: Chris Smith, BGR
  • Tap Next
  • Tap Add Action
  • Search for Play Sound and/or Play Music. I’ve selected both of them, as you can see in the screenshot.
Choose Play sound and/or Play Music as a desired action.
Choose Play sound and/or Play Music as a desired action. Image source: Chris Smith, BGR
  • Tap Next
  • Disable Ask Before Running
  • Tap Done

The automation is ready, and it’ll alert you whenever the battery reaches 100%, or any other level you set it to. You might want to set it to 95% or a different level. You can edit the automation if you need to tweak it, or disable and delete it later.

There’s no point in selecting both Play Sound and Play Music. I just did it to show you what’s possible. In this case, the phone plays a sound and starts playing music.

Things to consider

I’ve selected both options as I might not hear a quick notification. But I’ll certainly pay attention to music playing on my phone. However, if you’re playing music on your iPhone while recharging, it might be a problem. The automation will interrupt your playlist only to restart it. Also, it’s a problem if you recharge your iPhone on the go in a public place.

Secondly, I think you don’t need this automation if your iPhone charging habits are predictable. The built-in optimization tool will prevent the iPhone from drawing energy after it hits 80%. In turn, this will preserve battery health.

The full automation: iPhone will play a sound and music when battery charge reaches 100%.
The full automation: iPhone will play a sound and music when the battery charge reaches 100%. Image source: Chris Smith, BGR

If you enable the automation while charging overnight, that alert might wake you before your alarm goes off. Depending on how you deal with alarms, that’s either an annoyance or a bonus feature.

Speaking of iPhone battery charging, I’ll also remind you of a similar trick that forces the iPhone to stay on Low Power Mode all the time, which is something you might want to enable on older devices with bad battery health.

Chris Smith Senior Writer

Chris Smith has been covering consumer electronics ever since the iPhone revolutionized the industry in 2008. When he’s not writing about the most recent tech news for BGR, he brings his entertainment expertise to Marvel’s Cinematic Universe and other blockbuster franchises.

Outside of work, you’ll catch him streaming almost every new movie and TV show release as soon as it's available.