To check battery health on an Android device, you have several methods depending on your phone model and preferences:
1. Using Built-in Settings (if available)
- Go to Settings > Battery > Battery Health or Settings > Battery & Performance > Battery Health on some brands like Realme or Xiaomi. Here you can see the battery's maximum capacity percentage, which indicates health compared to when new
- On Samsung phones, you can also check under Settings > Device care > Battery > Diagnostics or use the Samsung Members app under Support > Phone diagnostics > Battery Status for detailed info
2. Using a Dial Code
- Open your phone’s dialer and enter the code ##4636##**. This opens a testing menu where you can tap Battery Information to see health, voltage, temperature, and other stats. Note this may not work on all phones
- Xiaomi phones also support the code ##6485##** to display battery and charger info including health status
3. Using a Bug Report (for Xiaomi/POCO)
- On Xiaomi/POCO devices, generate a bug report by tapping CPU info several times in settings, then extract and search the bugreport.txt file for "Battery Capacity" to find current capacity. Compare it to original capacity to calculate battery health percentage
4. Using Third-Party Apps
- Apps like AccuBattery provide detailed battery health info, including estimated capacity, charge cycles, and wear over time. It requires a few days of use to gather accurate data but offers ongoing monitoring and charging recommendations
Summary
Method| How to Access| Notes
---|---|---
Built-in Settings| Settings > Battery > Battery Health| Available on some
brands/models
Dial Code| Dial # #4636## or # #6485## (Xiaomi)| Not supported on all
phones
Bug Report (Xiaomi/POCO)| Generate bug report via CPU taps in settings| More
technical, precise for Xiaomi devices
Third-Party App| Install AccuBattery from Play Store| Best for detailed and
ongoing battery data
Checking battery health helps you understand battery capacity degradation and optimize usage to prolong battery life
