If your Xiaomi 15 Ultra gets hot while charging, it can be worrying. A warm phone is normal, but excessive heat can slow charging, reduce battery health, or trigger safety limits. Most charging heat issues come from power settings, accessories, or background activity, and you can fix them with a few targeted checks.
Why Your Xiaomi 15 Ultra Overheats During Charging
- Fast charging is pushing high power into the battery.
- The charger or cable is not certified or is damaged.
- Background apps are using the CPU while charging.
- The phone is charging in a hot environment or on a soft surface.
- Battery protection features are turned off or misconfigured.
Turn Off Fast Charging
Fast charging increases power flow, which naturally raises temperature. Turning it off reduces heat and keeps charging stable, especially during long sessions.
Open Settings, and then tap Battery.
Tap Charging options, and then turn off Fast charging.
Use the Original Charger and Cable
Non certified chargers can deliver unstable power, which causes heat buildup. Using the original accessories helps regulate voltage and current properly.
Disconnect the current charger, and then inspect the cable for damage.
Plug in the original Xiaomi charger and cable, and then start charging again.
Remove the Phone Case While Charging
Thick cases trap heat and prevent proper airflow. Removing the case allows heat to dissipate more efficiently.
Unplug the charger, and then remove the phone case.
Reconnect the charger, and then place the phone on a flat, cool surface.
Close Background Apps
Apps running in the background keep the processor active, which adds heat during charging. Closing them lowers CPU load and reduces overall temperature.
Open Recent apps, and then swipe away all running apps.
Plug in the charger, and then monitor the temperature for a few minutes.
Avoid Charging in Hot Areas
Environmental heat directly affects battery temperature. Charging in a cool place helps the phone regulate heat more effectively.
Move the phone away from direct sunlight, and then choose a well ventilated area.
Start charging again, and then check if the temperature improves.
Enable Battery Protection Features
Battery protection limits charging speed or pauses charging at certain levels to prevent overheating. These features are designed to extend battery lifespan.
Open Settings, and then tap Battery.
Tap Battery protection, and then enable all recommended options.
Overheating during charging on the Xiaomi 15 Ultra is usually caused by power delivery or heat buildup, not a hardware defect. Once you adjust charging speed, accessories, and background activity, the phone should charge safely and stay cool.
FAQs
Is it normal for the Xiaomi 15 Ultra to feel warm while charging?
Yes. Mild warmth is normal, especially with fast charging. The problem starts when the phone becomes uncomfortably hot or shows temperature warnings.
Can overheating damage the battery over time?
Yes. Repeated high heat can reduce battery capacity and lifespan. Using proper chargers and disabling fast charging when needed helps prevent this.
Should I stop charging if the phone gets very hot?
Yes. Unplug the charger and let the phone cool down. Resume charging only after the temperature returns to normal.
