How to Check and Improve Battery Health on Xiaomi Phones
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Your Xiaomi phone battery degrades over time — but with the right habits, you can keep it healthy for 3–5 years. Here's how to check its current health and take action.
How to Check Battery Health
Method 1 – Built-in HyperOS setting:
Go to Settings > Battery > Battery Health. You'll see a percentage (e.g., 92 %) indicating the battery's maximum capacity relative to when it was new.
Method 2 – Dial code:
Open the Phone app and dial *#*#6485#*#*. A diagnostic screen appears showing battery capacity (MF_Test values).
Method 3 – AccuBattery app:
Download AccuBattery from the Play Store. It tracks charge cycles and estimates capacity degradation over time.
Understanding Battery Health Levels
| Health % | Status | Recommended Action |
|---|---|---|
| 100–80 % | Good | Normal use, follow charging tips |
| 79–60 % | Moderate | Avoid full charge/discharge cycles |
| Below 60 % | Poor | Consider battery replacement |
How to Improve Battery Health (Charging Habits)
Follow the 20–80 % Rule:
Charge when battery reaches ~20 % and stop charging at ~80 %. Avoid keeping it at 100 % for long periods.
Enable Optimized Charging:
Settings → Battery → Battery Protection (or "Optimized Charging"). HyperOS will learn your schedule and stop at 80 % overnight.
Avoid Wireless Charging for Top-Ups:
Wireless charging generates more heat than wired, which accelerates battery aging. Use it occasionally, not daily.
Keep the Phone Cool:
Heat is the #1 enemy of lithium batteries. Avoid using your phone while charging if it gets hot.
When to Replace the Battery
If battery health drops below 70–75 %, a Xiaomi service center replacement typically costs $20–$50 and breathes new life into the phone.
