If you've ever glanced at your iPhone and spotted a yellow battery icon instead of the usual white or green, you might wonder whether something's gone wrong. Is it a warning sign? Is your battery failing? Don’t worry, in most cases, it's just Low Power Mode doing its job.
At Imfixed, we help customers across the UK with all sorts of iPhone issues, including battery problems, confusing icons, and poor performance. In this blog, we’ll explain why your iPhone battery icon turns yellow, how to manage it, and when you should visit us for expert help.
What Does a Yellow Battery Icon Mean?
A yellow battery icon doesn’t usually mean your iPhone is broken. It means Low Power Mode is switched on. This feature was introduced to help extend battery life by reducing background activity and limiting some features. It dims your screen, pauses background app refresh, disables "Hey Siri", and generally helps your battery last longer when it's running low.
You’ll often see the yellow icon when your battery drops below 20 percent, and it’ll remain yellow until your device is charged past 80 percent or until you manually turn Low Power Mode off.
Other Reasons for a Yellow Battery Icon
While Low Power Mode is the most common reason, there are other possible causes you should be aware of. Here’s what else a yellow battery icon could mean:
1. Charging While in Low Power Mode
If you're charging your iPhone while Low Power Mode is still active, the icon will remain yellow until the battery passes 80 percent or you disable the mode.
2. Battery Health Degradation
A consistently yellow icon, especially if you're noticing fast battery drain, could indicate that your battery health has degraded. You can check this by going to Settings > Battery > Battery Health & Charging. If your Maximum Capacity is low, it might be time to get a professional battery replacement. Come to us at Imfixed for a fast and reliable fix.
3. Optimised Battery Charging
With iOS 13 and above, Optimised Battery Charging uses AI to learn your charging routine. While it helps extend battery lifespan, it can sometimes display a yellow icon during the charging process.
4. Extreme Temperatures
If your iPhone’s battery gets too hot or cold, it may show a yellow icon as a warning. This is your phone protecting itself, move it to a normal temperature environment.
5. Non-Genuine Battery Replacements
If your battery was replaced at a non-authorised shop, your iPhone might show unusual icons. These third-party replacements can affect performance. At Imfixed, we use only genuine, high-quality parts, so you never have to worry.
6. Software Bugs
Occasionally, iOS bugs or glitches cause a yellow battery icon to appear without reason. Restarting your iPhone or installing the latest update usually fixes this.
7. Incompatible Charging Accessories
Charging with non-certified cables or adapters can cause power inconsistencies. Always use Apple-certified accessories or pop into Imfixed, and we’ll help you find the right ones.
How to Turn Low Power Mode On or Off
Turning Low Power Mode on or off is easy:
- Go to Settings
- Scroll to Battery
- Toggle Low Power Mode on or off
You can also access it quickly from the Control Centre.
Troubleshooting a Persistent Yellow Battery Icon
If your battery icon stays yellow even when it shouldn’t, try these steps:
-
Charge your device properly using Apple-certified accessories
-
Restart your iPhone to clear any minor glitches
- Check battery health under Settings to see if the battery capacity is low
- Update your device to the latest iOS version
- Close unused background apps to reduce load
- Lower your display brightness
- Turn off location services for apps that don’t need it
If none of these solve the issue, it might be time for battery replacement or a deeper check-up.
When to Visit Imfixed
If you're in Wigan, Manchester, Bury, or surrounding areas and your iPhone keeps showing a yellow battery icon, bring it to us at Imfixed. Whether it's a faulty battery, software issue, or hardware fault, our tech repair experts will diagnose the problem quickly and get your phone working like new.
Don’t waste time trying DIY fixes or relying on unreliable third-party parts. Visit our shop or book a repair from our website for a stress-free solution.
🔧 Book your iPhone repair with Imfixed today.
FAQs
Why does the iPhone battery icon turn yellow?
It usually indicates Low Power Mode is active. It could also appear during Optimised Battery Charging or signal other battery-related issues.
What if the icon is yellow and it’s not charging?
Check your charger and cable. Restart the phone, clean the charging port, and try again. Still having issues? Come see us at Imfixed.
Does a yellow icon mean the battery is bad?
Not necessarily. But if your Maximum Capacity is low, your battery health may be compromised. In that case, it's best to let our professionals at Imfixed replace it.
How do I turn off Low Power Mode?
Go to Settings > Battery and toggle it off.
Why does the icon turn yellow after a software update?
Sometimes, after an iOS update, your iPhone recalibrates battery settings, causing the icon to temporarily change colour.
