How to Check Your iPhone’s Battery Health and Cycle Count

When you buy a new iPhone, you expect it to last. However, all rechargeable batteries are consumable components that chemically degrade over time. As a battery degrades, it may hold less charge, ultimately affecting the daily use of your device. Apple provides built-in tools that help you monitor cycle count (the number of full discharges and recharges it has undergone) and overall battery health. Understanding these measurements is key to knowing if the battery is working as expected, when it might be time to replace it, or to better understand the condition of a used iPhone before purchasing it.

Checking your iPhone’s battery health is a fairly simple process. To get started, open the Settings app on your iPhone, tap Battery, and find the Battery Health section. On some older models, like the iPhone 13, this section is called Battery Health and Charging. This screen will show you an estimate of your iPhone’s battery capacity compared to when it was new, along with other useful information.

The maximum capacity percentage gives you a better idea of ​​the overall health of your iPhone battery. According to Apple, a typical battery is designed to retain up to 80% of its capacity when operating under normal conditions. For iPhone 15 and later models, this estimate is based on 1,000 full charge cycles. For older models, it is estimated that the battery will last up to 500 cycles before degrading significantly. When the battery health drops below 80%, your iPhone may still work, but you will likely notice a significant decrease in battery life.

In some cases, iOS can even enable additional performance management features to prevent iPhone from shutting down unexpectedly due to a severely degraded battery. In this case, you will see a warning under the Peak Performance Capability section. If you don’t see anything, it probably means your iPhone hasn’t had any battery issues and is still running at full power.

To help preserve the health of your iPhone battery, you can enable the Optimized Battery Charging option in Battery Settings. When enabled, this feature learns your daily routine and when you typically charge your iPhone, so it temporarily pauses charging at 80% and only completes charging at 100% at the time you need to use your iPhone again. On iPhone 15 and later, you can also set a maximum charge limit for your device, which also helps preserve battery health for longer.

If you have an iPhone 15 or newer, Apple offers an easy way to check the cycle count right in the Settings app. Go to Battery > Battery Status and scroll down to find your cycle count. If you’re using an older model, Apple doesn’t natively provide battery cycle statistics. This means you’ll have to rely on third-party alternatives, such as the popular Mac app CoconutBattery, to check your iPhone’s battery cycle count.

Knowing your device’s battery cycle count can be helpful in understanding its long-term lifespan, as well as how much you use your device. iPhone 15 models and later are designed to maintain good battery health for up to 1,000 full charge cycles before experiencing battery issues, while older models are designed for up to 500 cycles. For reference, 1,000 cycles are equivalent to two or three years of use under real-world conditions.

Keep in mind that one cycle represents consuming 100% of your battery’s current capacity, but not necessarily all at once. For example, if you used 50% of your battery, recharged your device, and then used another 50% afterward, that counts as a full charge cycle.

Hitting these numbers doesn’t mean your iPhone battery will automatically fail, but it does mean that its capacity will generally be lower, so you may notice shorter battery life. If your iPhone’s battery health is below 80% or it has reached 1,000 charge cycles, you should consider replacing the battery to keep your phone working properly. To do this, your best option is to contact Apple Support to arrange a replacement.