Have you ever noticed that the battery icon on your iPhone is showing yellow instead of green or white? This isn’t something that you should panic about, and there’s actually an easy fix.
It’s because your iPhone is in low power mode, a new feature that was added by Apple to extend the battery life of your phone. It makes some changes to your iPhone, including stopping mail fetch and dimming its brightness.
The battery is in low power mode
The battery icon on the top right-hand corner of the screen will be yellow if your phone is in low power mode. This feature is designed to extend the life of your iPhone’s battery by reducing some tasks and features that use too much power.
This will help extend your iPhone’s battery life until you can charge it up again. It’s a great way to save battery power when you’re out and about or at a public place where you can’t plug your iPhone into a wall outlet.
Apple calls this a “battery saver mode.” It disables many background activities that drain the battery, like push email fetching and app background refresh. It also reduces the screen’s brightness, minimizes animations, and stops background apps from using data in the background.
Some of these features will still work normally when Low Power Mode is disabled, but they may run a little slower than usual. It will also reduce the CPU and GPU speeds by about 40%, which can lead to some lags in your device’s performance.
There are several ways to turn on and off the Low Power Mode feature on an iPhone. One way is to open the Settings app and tap Battery. A toggle switch will appear, which you can turn on and off anytime.
The battery is running low
The battery icon on your iPhone typically shows green when the phone is fully charged, red when the battery is close to empty, and white or black when it is idle. When it gets yellow, however, it means that the battery is in low power mode and should be plugged into the charger to restore its normal state.
One of the best things you can do for your battery is to make sure that all of your apps are updated. That way, you can prevent them from using up the battery too quickly and extend your iPhone’s life.
Another thing you can do to save battery is to turn on Airplane mode when you’re not connected to Wi-Fi or a cellular network. That will stop your iPhone from constantly looking for a signal, which can drain the battery very quickly.
Lastly, you can check your battery health in the Settings app to see which apps are the most draining and how long they’re taking. That information can help you figure out what’s causing your battery to drain quickly, and it might also indicate that it’s time to replace the battery on your iPhone.
The battery is full
When your battery is full on your iPhone, the battery percentage will show up in the status bar and you can also view it in the Control Center. It’s a useful tool, especially if you want to see what’s going on with your phone’s power.
Apple wants to help you keep your battery healthy for as long as possible. That’s why they developed a variety of tools to help your iPhone manage its power draw and recharge the battery at times when it is able to charge more efficiently.
For example, Clean Energy Charging (iOS 16.1 or later) uses a forecast of carbon emissions in your local power grid to charge during times when renewable energy is available. This can extend your iPhone’s battery life and increase its peak performance capability, as well.
In addition, iOS 11.3 or later includes a battery health report that reveals your device’s maximum capacity and peak performance capabilities. This information helps you make informed decisions about when to replace your iPhone’s battery and how much time it will last on a charge.
If your battery is nearing the end of its lifespan, the battery health report will warn you that it’s likely time to get a new one. This doesn’t mean that your iPhone is dead, it just means that its battery isn’t as powerful anymore and you should consider replacing it.
The battery is empty
If your iPhone isn’t charging, or the screen goes blank when you plug it into a charger, the battery may be dead. However, it’s important to note that the iPhone isn’t truly empty of battery power, since a small percentage remains to power wireless chips used for the Find My feature and to help track your phone if you lose it.
Apple’s iPhone software tries to compensate for this by slowing down your device when the battery is about to run out so that it can preserve the remaining capacity of the battery. However, over time, even this can’t keep up with the demand on your battery and it’s likely that your device will eventually start to shut down unexpectedly.
You can also check your battery health in Settings – Battery to see how much capacity your device has left. It has been a feature in iOS since 11.3 after users complained about aging batteries that slowed down older iPhones and led to inadvertent shutdowns.
When you’re looking at your battery health, you should notice a line labeled “Peak Performance Capability” and it’s a sign that it’s time to replace your battery. A battery that’s less than 80% of its rated capacity will struggle to perform correctly and you’ll notice a number of problems, such as things taking longer to load or applications closing unexpectedly.
The most common cause of your battery draining quickly is if you’re using apps that are using a lot of power. You can try turning these off or updating them to reduce their use of the battery.