How to Fix Samsung Galaxy S25 Ultra That Overheats During Charging

If your Samsung Galaxy S25 Ultra becomes unusually warm while charging, it can be alarming. A slight increase in temperature is normal, but excessive heat can slow down charging, reduce battery life, or even trigger safety protections that stop the charging process.

This problem usually happens because of charging accessories, background activity, or environmental factors. The good news is that most overheating issues during charging are easy to fix with a few adjustments.

Why Your Samsung Galaxy S25 Ultra Overheats During Charging

• Using a non compatible or low quality charger.
• Charging the phone in a hot environment or under direct sunlight.
• Running heavy apps while the device is charging.
• Fast charging generating additional heat.
• Software glitches affecting power management in OneUI 7.

Use the Original Charger and Cable

Charging accessories play a huge role in how your phone manages power and heat. Third party chargers that do not meet Samsung’s specifications can cause unstable power delivery, which leads to excessive heat while charging.

1. Disconnect your current charger, and then check the cable and adapter for damage.
2. Plug in the original Samsung charger, and then connect the cable securely to your phone.

Let the device charge for several minutes and monitor the temperature. A certified charger helps regulate power more efficiently.

Remove the Phone Case While Charging

Some phone cases trap heat around the device, especially thick or rugged cases. When heat cannot escape, the temperature rises quickly during charging.

1. Remove the protective case, and then place the phone on a flat surface.
2. Connect the charger again, and then allow the device to charge without the case.

This simple change often improves heat dissipation during charging.

Stop Heavy Apps While Charging

Gaming, video streaming, or using the camera while charging can increase processor activity. When the processor works hard during charging, both components generate heat at the same time.

1. Swipe up from the bottom of the screen, and then open the Recent apps screen.
2. Tap Close all, and then lock the screen while charging.

Let the device charge without running demanding applications.

Disable Fast Charging Temporarily

Fast charging pushes more power into the battery, which naturally creates more heat. Disabling this feature temporarily can reduce the temperature if the phone frequently overheats.

1. Open Settings, and then tap Battery.
2. Tap Charging settings, and then turn off Fast charging.

The phone will charge more slowly, but it will also stay cooler.

Move the Phone to a Cooler Environment

Environmental temperature affects charging performance. Charging the phone in a hot room, inside a car, or near direct sunlight can cause overheating warnings.

1. Unplug the charger, and then move the phone to a cooler location.
2. Wait a few minutes for the device to cool down, and then plug the charger back in.

Keeping the phone in a well ventilated area helps maintain a safe charging temperature.

Restart the Phone

Software glitches sometimes cause background processes to run continuously, which generates extra heat. Restarting the phone refreshes the system and stops these processes.

1. Swipe down from the top right of the screen, and then open the Quick Settings panel.
2. Tap the Power icon, and then tap Restart.

Once the device turns back on, plug it in again and check if the temperature remains stable.

Overheating during charging on the Samsung Galaxy S25 Ultra is usually related to charging accessories, background activity, or environmental heat. After adjusting these factors, the phone should charge normally and maintain a safe temperature.

FAQs