The Most Accurate Way to Check iPhone Battery Health

With prolonged use of smartphones, battery health becomes a primary concern as it directly impacts usage time. For devices with built-in batteries, checking via physical battery inspection is not feasible, requiring software intervention instead.

1. Checking iPhone Battery Health Using the Battery Health Feature (iOS 11.3 and above)

Starting from iOS 11.3, Apple introduced the Battery Health feature to assist users in monitoring and managing iPhone battery capacity, thereby avoiding sudden shutdowns or more hazardous situations like swelling or explosions. To check battery health, follow these steps:

Step 1: Navigate to Settings => Battery.

Step 2: In the Battery section, tap on Battery Health to view information about your iPhone battery. The Maximum Capacity line displays the level of battery wear. The stats below indicate that this iPhone's battery is depleted by 5%.

Check battery wear using 3uTools software.

If your iPhone is running software version iOS 11.3 or earlier, you can't check battery wear using the Battery Health feature as Apple hasn't integrated that functionality. To check your iPhone's battery, we'll use 3uTools software (to run 3uTools, you need to have iTunes software installed on your computer).

iTunes software download link: https://www.apple.com/itunes/download/

3uTools software download link: http://www.3u.com/

Step 1: Open the 3uTools software, and all information about your iPhone will be displayed on the right side. Pay attention to the Charge Times and Battery Life sections. To view detailed battery information, click on Details under Battery Life.

Step 2: Here, detailed information about the battery in your iPhone is displayed as shown below. Various parameters such as charge cycles, lifespan, temperature, etc., are presented in detail.

Charge Cycles: Number of charging cycles

Actual Battery Capacity: Actual capacity of the battery

Design Battery Capacity: Designed capacity of the battery

Battery Lifespan: Lifespan of the battery

Serial Code: Pin serial number

Instantaneous Voltage: Standard current of the battery

Startup Voltage: Current required to boot the device

Temperature: Battery temperature

Standard Charging Amperage: Standard current for charging the battery

Battery Brand: Manufacturer of the battery

Manufacture Date: Date of battery production

For the most effective and accurate ways to check battery information, you can confidently use your device without worrying about malfunctions or abnormalities. If your device experiences slowness, lagging, or unusual behavior, it's likely due to the battery, and you should check it more frequently. Wishing you success!