Where to Find Your Battery Percentage on iPhone

Your iPhone shows remaining battery in the top-right corner of the screen as a percentage or icon. On newer iPhones with a notch or Dynamic Island, look at the very top right. On older models with a home button, the battery icon appears in the status bar at the top right.

If you see only an icon and no number, swipe down from the top-right corner to open Control Center. The battery percentage displays there in large text. You can also enable a permanent percentage display: go to Settings > Battery > Battery Percentage and toggle it on. After that, the number stays visible in your status bar all day.

Key Takeaways

  • Battery percentage appears in the top-right corner of your screen, or in Control Center if you swipe down from that corner.
  • Turn on the permanent percentage display in Settings > Battery > Battery Percentage so you always see the number, not just the icon.
  • Battery Health shows how much capacity your battery retains compared to when it was new, found in Settings > Battery > Battery Health & Charging.
  • Normal battery health is 80 percent or higher; below 80 percent means the battery holds less charge than it did originally.
  • Low Power Mode extends battery life by slowing performance and reducing background activity, and you can turn it on manually or set it to turn on automatically at 20 percent.

Understanding Battery Health vs. Current Charge

Your iPhone reports two different battery numbers, and they mean different things. Battery percentage is how much charge you have right now—like a gas tank that is half full. Battery Health is how much total capacity your battery retains after months or years of use, compared to when the phone was brand new.

A new iPhone battery has 100 percent health. Over time, as you charge and discharge it, the maximum capacity drops. An iPhone with 85 percent health can still hold a full charge, but that full charge is 85 percent of what it originally was. This is normal wear. Apple considers batteries at 80 percent health or higher to be in good condition.

How to Check Battery Health on Your iPhone

Open Settings and tap Battery. Then tap Battery Health & Charging. You will see a number labeled Maximum Capacity—that is your battery health percentage. Below it, the phone explains what that number means in plain language.

If your battery health is below 80 percent, your phone may shut down unexpectedly when the battery drains, even though it shows charge remaining. Apple offers battery replacement at an Apple Store or authorized service provider. The cost varies by iPhone model and whether you have AppleCare+, but replacement is usually less expensive than buying a new phone.

You will also see Charging Optimization on this screen. When it is on, your iPhone learns when you usually charge it and slows down charging to 80 percent overnight, then finishes the last 20 percent shortly before you wake up. This reduces the stress on the battery and helps it stay healthy longer.

Using Low Power Mode to Extend Battery Life

When your battery is running low, Low Power Mode reduces power consumption by slowing down performance, dimming the screen slightly, and pausing background tasks. To turn it on manually, swipe down from the top-right corner to open Control Center, then tap the battery icon.

You can also set Low Power Mode to turn on automatically. Go to Settings > Battery > Low Power Mode and choose when you want it to set up. The default is 20 percent, but you can change it to 10 percent or turn off automatic set up entirely. When Low Power Mode is on, the battery icon turns yellow.

Low Power Mode does not harm your battery. It is a temporary setting that you can turn off anytime. Many people turn it on when they know they will not have access to a charger for several hours, or leave it on permanently if they do not mind the slight performance reduction.

What Battery Health Numbers Mean

Apple does not publish exact thresholds for every health percentage, but here is what you can expect. At 100 percent health, your battery is new. Between 95 and 100 percent, you have barely any wear—this is normal for a phone a few weeks old. Between 80 and 95 percent is typical for a phone that is six months to two years old with regular use.

Below 80 percent, Apple considers the battery degraded. You may notice the phone drains faster or shuts down when the battery is low. Below 50 percent, the battery is significantly worn and replacement is recommended. If your battery health drops very quickly—more than 10 percent in a few weeks—contact Apple, because this can indicate a defect.

Checking Battery Usage by App

If your battery drains quickly, you can see which apps are using the most power. Go to Settings > Battery > Battery Usage. This screen shows every app and how much battery it used in the last 24 hours or the last 10 days. Tap the time period toggle at the top to switch between them.

Apps that run in the background, use location services, or stream video consume the most battery. If one app is using far more than the others, try closing it when you are not using it, or check its settings to turn off background activity. You can also swipe left on an app name to see a breakdown of battery use by activity type—background activity, screen time, or standby.

Frequently Asked Questions

Why does my battery health drop so fast?

Battery health naturally declines with age and use, but a drop of more than 5 percent per month is unusual. Extreme temperatures, constant fast charging, or leaving the phone at 100 percent for long periods can speed up degradation. If your battery health is dropping very quickly, have Apple check the battery for a defect.

Does Low Power Mode damage my battery?

No. Low Power Mode is a temporary software setting that reduces power draw. It does not affect the physical battery or cause long-term damage. You can use it as often as you want without harming your phone.

Can I replace just the battery, or do I have to replace the whole phone?

You can replace just the battery. Apple Stores and authorized service providers offer battery replacement for a fee. The cost depends on your iPhone model and whether you have AppleCare+. Replacement usually takes a few hours to a few days.

What is the difference between battery percentage and battery health?

Battery percentage is how much charge you have right now—like a fuel gauge. Battery health is the maximum capacity your battery can hold, compared to when it was new. A phone at 50 percent charge with 80 percent health can still charge to 80 percent of its original capacity.

Should I keep Charging Optimization on?

Yes. Charging Optimization slows charging to 80 percent overnight and finishes the last 20 percent before you wake up. This reduces stress on the battery and helps it stay healthy longer. You can turn it off in Settings > Battery > Battery Health & Charging if you prefer to charge at full speed.