
"Why does my phone get hot when charging?" It's a question many users ask. Your phone's temperature can surge while charging due to high power density and small form factors. In fact, studies show smartphone surface temperatures can reach over 45°C (113°F) during typical use, especially when multitasking. While warmth is usually harmless during charging, excessive heat can degrade battery health and even disrupt user experiences. Don't worry, though, simple steps can help prevent overheating and keep your device cool and safe. Read on!
Why Does My Phone Get Hot While Charging?
Here's a quick list of the most typical culprits as to why the phone gets hot while charging:
1. Overcharging
While most modern phones stop charging when they hit 100%, older devices or poorly made chargers may carry on “trickle-charging,” which creates unnecessary heat. If your phone feels unusually warm after reaching full capacity, try unplugging it sooner or investing in a high-quality charger.
2. Fast Charging/strong>
Sure, fast chargers save time, but they also generate more heat as your phone draws higher currents. Wireless fast charging can be even less efficient, creating added warmth. Use chargers designed for your phone and avoid third-party ones that might not manage heat well.
3. Poor Ventilation
Your device needs airflow to dissipate heat. Charging it in a closed space, like under pillows or blankets, blocks ventilation, trapping the heat inside. Charge your phone in an open, cool spot for better airflow.
4. Cheap or Faulty Charging Cables
Low-quality or damaged cables can inefficiently send power to your phone, causing overheating. Stick to certified chargers and cables suited for your device's needs, especially if you notice a particular cable causing frequent overheating.
5. Using Your Phone While Charging
Whether it's bingeing TikToks or answering work emails, using your phone actively while it's charging causes the processor and battery to work overtime. It's a combo that leads to heat buildup. Try giving your phone a “rest period” while it's plugged in.
6. Aging Batteries
Let's face it, no battery lasts forever. If your phone heats up even during normal charging sessions, it might be time to consider replacing your battery. Older batteries don't retain power as efficiently, which can lead to overheating.
Is It Harmful for My Phone to Overheat During Charging?
When a phone overheats, it can cause various long-term problems, including damage to its components. Here's a rundown of what could happen:
- Permanent Battery Damage: Excessive heat can harm your phone's battery, reducing both its lifespan and ability to hold a charge.
- Slower Charging: Overheating impacts charging efficiency, making it take much longer to get your phone powered up.
- Component Degradation: Heat stresses internal parts, speeding up wear and tear, which can unfortunately lead to costly repairs.
- Performance Issues: A heated phone often lags or freezes, impacting overall usage and possibly even leading to more serious malfunctions.
Easy Ways to Cool Your Phone While Charging
Below are some of the most effective practical ways to help safeguard your device while keeping it cool:
1. Close Unnecessary Apps and Stop Using Your Phone
Multitasking might be convenient, but running several apps while charging can overload your phone's processor. Before plugging your phone in, close all apps running in the background. If your phone feels warm, pause using it while it charges.
2. Remove the Phone Case
Many cases trap heat, especially during charging. To help your device breathe, take off its case and let air circulate around it. It's a small action, but it can have a big cooling effect.
3. Switch Off Background Refresh Settings
Background app refresh downloads data even when you aren't actively using your apps, which can quickly overwork your phone's resources. Disabling this feature via your phone's settings can lessen the load on your device and reduce heat buildup.
4. Enable Airplane Mode or Power Off Completely
If you don't need network connectivity (like calls or notifications), turning on airplane mode is a great way to cool things down. For a stronger solution, power off your phone entirely until it's fully recharged or no longer warm to the touch.
5. Move Your Phone to a Cooler Location
Charging a phone in direct sunlight, a hot room, or near heat sources like electronics isn't ideal. Relocate it to a shaded, air-conditioned environment. Just don't make the mistake of putting it in the fridge—condensation inside the device can cause serious damage!
6. Try a Cooling Pad or Fan
A cooling pad or small fan positioned near your phone can help dissipate heat while it charges. This creates airflow and lowers the temperature safely. Look for phone-specific cooling solutions for added effectiveness.
7. Charge in Short Intervals if Needed
When your phone starts overheating mid-charge, unplug it and let it cool before continuing. Breaking the charging process into shorter intervals can prevent excessive heat buildup.
How Can I Prevent My Phone from Overheating While Charging?
Prevention is key! If you've been battling a hot phone, take a glance at the following tips and tricks:
1. Avoid Overcharging
Leaving your phone plugged in after it's fully charged can generate unnecessary heat. Make it a habit to unplug your device once its battery hits 100%. For iPhone users, turn on Optimized Battery Charging for a smart way to keep temperatures steady while charging overnight. It's a feature that pauses charging at 80% and finishes closer to the time you typically unplug your phone, reducing heat buildup and preserving battery health long-term.
2. Charge on a Cool, Flat Surface
Placing your phone on soft surfaces like bedding or pillows traps heat, making it harder for your phone to cool down. Instead, opt for a hard, flat surface like a desk or table to allow better airflow during charging.
3. Close Unused Apps
Apps running in the background add stress on your phone's processor—even if you're not actively using them. Before you charge, clear out unnecessary apps or delete ones you rarely use.
4. Keep Your Screen Brightness Low
High brightness levels draw more power and can overheat your screen. Try turning on the adaptive brightness or manually dimming your display whenever possible, especially while your phone is charging.
5. Use High-Quality Chargers and Cables
Cheap chargers might save a few dollars upfront, but they can contribute to overheating and even damage your phone. Invest in a charger from a trusted brand (like Anker chargers) to guarantee consistent performance and safe charging. Such high-quality accessories often include built-in protections that regulate power flow, preventing heat spikes.
6. Keep Software Updated
Outdated apps or software may use excessive resources, adding to heat production. Regular updates often contain fixes for efficiency and performance, so make sure your phone and apps are running the latest versions!
7. Install Anti-Malware Software
Malware can wreak havoc on your phone's system, forcing it to work harder and generate extra heat. Protect your device with trusted anti-malware software to minimize these risks and keep things running cool.
8. Go for Wireless Charging
If you're consistently experiencing overheating with fast-wired chargers, switching to wireless charging could be a game-changer. Wireless chargers power up your phone more slowly and steadily, which reduces strain on your battery and the heat that comes along with it.
If you're looking for a wireless charger that's as safe as it is fast, the Anker 3-in-1 Cube with MagSafe has got your back. With 15W ultra-fast charging for your iPhone, seamless compatibility with your AirPods and Apple Watch, it's definitely a one-stop solution for all your essentials. Compact, foldable, and travel-ready, it stays cool while keeping your devices powered up anywhere you go.
Conclusion
There you have it! We have successfully debunked the question, "Why does my phone get hot when charging?" We hope you have gained the insights and solutions you need. Overheating can indeed be harmful, but with some mindful actions, you can keep your phone cool and protect its battery. Remember always to practice the tips we've shared to maintain your device's temperature. If you found this helpful, feel free to share it with friends who might need it too.
FAQ about Why Does Phone Gets Hot When Charging
Is it normal for a phone to get hot while charging?
Yes, it's perfectly normal for a phone to get a bit warm while charging. This happens because the battery and electrical components generate heat as they transfer energy. It's a common occurrence and usually not something to worry about. However, if your phone gets excessively hot or uncomfortable to touch, it might be a good idea to unplug it and let it cool down for a bit, just to be safe.
Does using my phone while charging cause it to heat up?
Yes. Using your phone while charging can indeed make it heat up more than usual. Activities like browsing, playing games, or streaming videos can strain the battery and processor, causing them to generate more heat. It's generally best to let your phone charge undisturbed to avoid unnecessary battery stress and keep things cool.
Should I charge my phone when it is hot?
It's usually best to avoid charging your phone when it's already feeling quite hot. Charging adds extra heat, which can further stress the battery and potentially shorten its lifespan. If your phone is hot, try to let it cool down first before plugging it in. Simple steps like turning it off for a while or moving it to a cooler environment can help get it back to a normal temperature.
Be the First to Know

Save Up to £300 or Get 20% Off
Already signed up? Log in here.