Introduction: Why Your iPhone Gets Hot While Charging
If your iPhone feels unusually hot while charging, you’re not alone. Overheating during charging is a common concern among users, especially after iOS updates or when using third-party accessories. While some heat is normal, excessive heat can damage your battery health, slow down performance, or even cause unexpected shutdowns. This article dives deep into why iPhones overheat while charging and provides practical steps to fix and prevent it—without relying on copied information or speculative advice.
Understanding iPhone Overheating: Real Causes
Before solving the issue, it’s essential to understand the actual reasons your iPhone overheats:
Using Non-Certified Chargers or Cables:
Cheap or uncertified accessories may not regulate voltage properly, causing overheating.
Charging in Hot Environments:
Leaving your iPhone in direct sunlight or inside a car can amplify heat while charging.
Background Apps Running:
Charging while heavy apps like games, video editors, or GPS are running can overload your processor.
Software Bugs or iOS Glitches:
Certain iOS versions are known to have bugs that lead to temperature spikes.
Hardware or Battery Issues:
A failing battery or malfunctioning internal components can contribute to overheating.
Phone Cases Blocking Heat Dissipation:
Thick or insulated cases trap heat and prevent natural cooling.
🔍 Main Points to Remember (Key Takeaways)
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Avoid charging your iPhone under pillows, blankets, or hot surfaces.
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Use Apple-certified (MFi) accessories for safe charging.
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Close unused apps and background processes during charging.
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Don’t charge your phone while gaming or using GPS intensively.
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Keep your iPhone updated with the latest iOS patches.
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Remove the case if the device becomes warm during charging.
Step-by-Step Guide: How to Fix iPhone Overheating While Charging
1. Use Original or MFi-Certified Accessories
Apple’s MFi (Made for iPhone) program ensures third-party accessories are safe. Avoid using counterfeit or cheap cables that can cause voltage spikes and heat buildup.
✅ Tip: Always check for the “Made for iPhone” label when buying chargers or cables.
2. Charge in a Cool, Ventilated Environment
Your iPhone is designed to operate between 0° and 35° C (32°–95° F). Charging it in a hot room or direct sunlight can cause it to overheat quickly.
✅ Tip: Avoid charging your phone in direct sun, under your pillow, or in a parked car.
3. Turn on Low Power Mode While Charging
Enabling Low Power Mode reduces background activity and lowers processing load, which can help keep your phone cool.
Go to: Settings → Battery → Low Power Mode
4. Close Resource-Heavy Apps
Apps like games, camera, YouTube, or social media with high background activity generate more heat.
✅ Tip: Swipe up from the bottom (or double-click the home button) and close unnecessary apps before plugging in.
5. Remove Your Case While Charging
Phone cases made of leather or thick plastic can trap heat. Temporarily removing your case while charging allows for better heat dissipation.
6. Update to the Latest iOS Version
Apple continuously rolls out software updates to fix known bugs, including issues related to battery management and heating.
Go to: Settings → General → Software Update
7. Use Airplane Mode for Faster, Cooler Charging
When enabled, Airplane Mode turns off all wireless connections, reducing power usage and letting your iPhone charge more efficiently and with less heat.
✅ Tip: Switch to Airplane Mode during charging (if you’re not expecting urgent calls).
8. Don’t Use Your iPhone While Charging
It may be tempting to scroll, game, or watch videos while charging, but doing so increases CPU usage and generates more heat.
🛑 Important: Let your iPhone charge without active use whenever possible.
9. Check Battery Health
If your battery’s health is below 80%, it might be inefficient and prone to overheating. A battery replacement may be needed.
Go to: Settings → Battery → Battery Health & Charging
10. Restart or Reset Settings If Overheating Persists
Sometimes background processes or settings can glitch, causing the phone to work harder. Try restarting your phone or resetting all settings.
Go to: Settings → General → Transfer or Reset iPhone → Reset → Reset All Settings
When to Seek Professional Help
If your iPhone:
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Gets extremely hot to the touch
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Shuts down unexpectedly
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Shows battery health below 80%
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Or displays an overheating warning during charging
…it’s time to visit an Apple Store or authorized service provider. Overheating could be the sign of a swollen battery or internal hardware issue.
Prevent Future Overheating: Best Practices
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Charge your iPhone on flat, cool surfaces
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Avoid overnight charging in hot rooms
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Enable Optimized Battery Charging
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Replace aging batteries before they cause heat issues
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Avoid charging during intensive tasks like 4K video recording or mobile gaming
Final Thoughts
iPhone overheating while charging is often preventable with safe habits and Apple-certified accessories. Following the steps above will help you maintain your phone’s performance, battery life, and safety. Regular maintenance—both in hardware and software—goes a long way in keeping your iPhone cool and running smoothly.
If overheating persists, always prioritize safety over DIY fixes. A professional inspection may reveal deeper issues worth resolving before they escalate.