Why Is My MacBook Charger So Hot

MacBook Charger can overheat due to multiple reasons that include high humidity, insufficient air circulation, faulty outlets, defective charger or bad port.

If you’ve ever asked yourself, “Why is my Macbook charger so hot?” you’re not alone – this is a common concern among Mac users. It’s important to know that chargers can naturally heat up, but excessive heating could signal underlying issues. This guide will shed light on why your MacBook charger might be overheating and deliver practical tips to prevent it from happening. So, let’s delve into the heart of the matter!

Quick Summary

  • Macbook chargers can overheat due to insufficient air circulation, high humidity, defective chargers, faulty outlets, and bad ports.
  • To prevent overheating, avoid placing the charger on soft surfaces that block ventilation, use it in well-ventilated areas with moderate humidity levels, and regularly inspect for signs of damage or corrosion.
  • Changing usage habits like avoiding charging on soft surfaces and minimizing applications running while charging can also help prevent overheating. Additionally, using an authorized charger and maintaining a good charge level are important preventive measures.

Reasons Why Macbook Chargers Overheat

MacBook chargers can overheat for various reasons, including insufficient air circulation, high humidity, defective chargers, faulty outlets, and bad ports.

Insufficient air circulation

Lack of adequate air circulation can cause your MacBook charger to overheat. This typically happens when you place the charger on a soft surface like a bed or a couch, which can block its vents and prevent heat from escaping. The trapped heat causes the temperature of the charger to rise dangerously high. It’s essential for safety purposes that this overheating is prevented as it could potentially damage internal components and create fire hazards if left unchecked. To ensure your MacBook charger remains within safe temperatures, always place it on hard surfaces that allow for proper ventilation, such as desks or tables. Remember, preserving good airflow around your charger is key to preventing overheating issues.

High humidity

High humidity can contribute to the overheating of your MacBook charger. When humid air becomes saturated with moisture, making it harder for heat to dissipate effectively. This can lead to heat buildup around your charger, causing it to become hot. Humidity can also affect the electrical components inside the charger, increasing their resistance and potentially causing them to generate more heat. Additionally, moisture in the air can lead to corrosion on the charger’s connectors or pins, further compromising its performance and leading to overheating issues. To prevent high humidity from affecting your MacBook charger, use it in well-ventilated areas with moderate humidity. Avoid using your laptop in spaces with high humidity, such as bathrooms or kitchens. If you live in a particularly humid climate or are experiencing higher-than-usual humidity levels inside your home or office space, consider using a dehumidifier or air conditioner to control the environment. Regularly cleaning and inspecting your charger for any signs of corrosion or damage caused by humidity is important. If you notice any issues like rusted connectors or discoloured pins on your MacBook charger due to high humidity exposure, replacing it with a new one may be best.

Defective charger

A defective charger is another common reason your MacBook charger may be overheating. If there are issues with the internal components or wiring of the charger, it can lead to excessive heat during charging. Defective charger This can be dangerous not only for the charger itself but also for your MacBook and even pose a potential fire hazard. It’s important to ensure you’re using an authorized charger from Apple or a reputable third-party manufacturer to avoid defects. Regularly checking your charger for signs of damage or wear and tear can also help identify any potential issues before they become serious problems.

Faulty outlet

A faulty outlet can be another reason why your MacBook charger is overheating. When an outlet is defective, it may not provide a consistent and stable flow of electricity to the charger, causing it to work harder and generate excessive heat. Loose wiring or damaged electrical connections within the outlet can also contribute to this issue. Check your outlets regularly for any signs of damage or wear, such as loose plugs or scorch marks. If you suspect an outlet problem, contacting a qualified electrician is best to address the issue promptly and ensure a safe charging environment for your MacBook.

Bad port

A bad port on your MacBook can also contribute to overheating your charger. When the port becomes damaged or worn out, it may not make a proper electrical connection with the charger, causing resistance and generating excess heat. Bad port This can result in an overheated charger and potential safety hazards. It is important to regularly inspect the port for any signs of damage or corrosion and get it repaired or replaced if necessary to prevent further heating issues. Remember, using a faulty port can not only lead to an overheated charger but also affect the overall performance of your MacBook. Proper maintenance and timely repairs are key to keeping your charger functioning safely and efficiently.

Tips to Prevent Macbook Charger Overheating

To prevent your Macbook charger from overheating, change your usage habits, use an authorized charger, maintain a good charge, avoid heat and humidity, and regularly check for damage.

Change usage habits

Changing some of your usage habits is essential to prevent your MacBook charger from overheating. Firstly, avoid charging your laptop on soft surfaces like beds or sofas as they can restrict airflow and trap heat, leading to charger overheating. Instead, use a hard, flat surface that allows air circulation around the charger. Secondly, minimize the number of applications running while charging your MacBook, as this can generate additional heat and strain the charger. Lastly, unplug the charger when not in use, as leaving it connected for prolonged periods can cause unnecessary heat buildup. By implementing these simple changes to your usage habits, you can help prevent overheating issues with your MacBook charger and ensure its longevity and safety.

Use an authorized charger

To prevent your MacBook charger from overheating, it is essential to use an authorized charger. Using a third-party or counterfeit charger may save you money initially, but it can lead to serious safety concerns and potential damage to your device. Authorized chargers are designed for your MacBook model and have undergone rigorous testing to ensure optimal performance and safety standards. Unlike unauthorized chargers, they are equipped with necessary features like built-in voltage regulation and temperature control mechanisms, which help prevent overheating issues. Therefore, always invest in an authorized charger from a reputable source to safeguard your device and yourself from the risks of using substandard alternatives.

Maintain a good charge

It’s important to take proper care of your battery to maintain a good charge on your MacBook. Keeping your battery at an optimal level can help prevent overheating issues with your charger. One key tip is to avoid letting your battery drain completely before charging it again. It’s best to keep the battery level between 20% and 80% whenever possible. Fully discharging or overcharging the battery can put unnecessary stress on the battery and the charger, leading to higher temperatures during charging. Maintaining a healthy charge level ensure better performance and reduce the risk of overheating and potential damage to your MacBook charger.

Avoid heat and humidity

Heat and humidity can significantly contribute to Macbook charger overheating. When the charger is exposed to high temperatures or a humid environment, it has to work harder to cool down, which can lead to excessive heat buildup. This increased heat can affect the charger’s performance and pose safety risks. You can follow a few simple steps to prevent your Macbook charger from overheating due to heat and humidity. First, ensure you use your laptop in a well-ventilated area with good airflow. Avoid placing it on surfaces that trap heat, such as soft fabrics or blankets. Protect your laptop from direct sunlight and other heat sources like radiators or heating vents. These external sources can add extra warmth to an already heated charger. Furthermore, be mindful of using your MacBook in humid environments, as moisture in the air can affect electrical connections and increase the risk of corrosion damage. Use a dehumidifier or ensure proper ventilation when using your laptop in areas with high humidity levels.

Check for damage

Inspecting your MacBook charger for damage is crucial in preventing overheating issues. A damaged charger can be a potential fire hazard and may cause severe damage to your device. Start by checking the outer casing of the charger for any visible cracks, frayed wires, or exposed metal. Replacing the charger immediately is important if you spot any signs of physical damage. Next, take a closer look at the charging connectors and pins. Any bent or broken pins can disrupt the electrical connection between the charger and your MacBook, leading to excessive heat generation. Additionally, corrosion on these connectors can also contribute to overheating problems. To ensure proper functioning, gently clean the charging connectors using a soft cloth or cotton swab dipped in rubbing alcohol. This will remove any dirt or debris impeding optimal contact with your device.

Signs of MacBook Charger So Hot

Excessive heat during charging, a burning smell, the charger becoming too hot to touch, and MacBook not charging properly are clear indications of the Macbook charger overheating.

Excessive heat during charging

It is normal for a MacBook charger to generate heat during the charging process. However, if you notice excessive heat coming from your charger while connected to your laptop, an underlying issue may need attention. Excessive heat during charging can indicate poor contact between the charger and the device, potentially caused by corrosion or damaged pins on the charger. This can lead to inefficient charging and pose safety risks. To prevent overheating during charging, use a compatible and authorized charger, regularly inspect for any damage or corrosion on the charger and device ports, and maintain proper electrical connections.

Burning smell

If you notice a burning smell coming from your MacBook charger, it is a clear sign that something is wrong and should not be ignored. This unpleasant odour can indicate an overheating issue with the charger, potentially leading to more serious problems if left unaddressed. Overheating can occur due to various reasons, such as inadequate air circulation around the charger, using a defective or incompatible charger, or even damage to the charging port. Excessive heat generated during charging can not only affect the performance of your MacBook but also pose safety risks. It is crucial to take immediate action if you encounter a burning smell. Safely disconnect the charger from the power outlet and your MacBook, allowing it to cool down completely before investigating further. If the problem persists or worsens, consult an authorized technician for assistance in diagnosing and resolving any underlying issues with your MacBook charger while ensuring your safety.

The charger is becoming too hot to touch

The heat generated by a MacBook charger during use is normal, but when it becomes too hot to touch, it can cause concern. This often indicates that the charger is overheating, leading to safety risks and potential damage. There are several reasons why this may occur. It could be due to insufficient air circulation around the charger, high humidity levels, or even a defective charger. Another possibility is using a faulty outlet or having a bad port connection between the charger and your MacBook. To prevent these issues, you must change your usage habits by avoiding excessive charging sessions and ensuring that you’re using an authorized charger. Maintaining a good charge on your laptop battery can also help reduce strain on the charger. Additionally, keep your MacBook away from areas with high heat and humidity, as they can contribute to overheating.

MacBook is not charging properly

If your MacBook charger is not charging properly, it could be a sign of overheating. Overheating can cause damage to the charger’s internal components, leading to reduced performance and difficulty in charging your device. Additionally, a hot charger may indicate an issue with the electrical connection between the charger and your MacBook. Corrosion damage or worn-out pins can also contribute to this problem. To prevent these issues, use an authorized charger and avoid using damaged or incompatible cables. Suppose you notice that your MacBook charger is becoming excessively hot while charging. In that case, it’s important to address this issue promptly to ensure both your safety and the longevity of your device.


In conclusion, understanding why your Macbook charger is so hot is crucial for maintaining its performance and safety. Insufficient air circulation, high humidity, defective chargers, faulty outlets, and bad ports are common causes of overheating. By changing usage habits, using authorized chargers, avoiding heat and humidity, and regularly checking for damage, you can prevent your Macbook charger from overheating. Remember to pay attention to signs of overheating, like excessive heat during charging or a burning smell, to ensure the longevity of your charger.


1. Is it normal for a MacBook charger to get hot?

It is normal for a MacBook charger to warm up during use due to the electrical current passing through it. However, an issue may require attention if the heat becomes excessive or uncomfortable to touch.

2. What could cause my MacBook charger to overheat?

There are several potential causes of overheating in a MacBook charger. These can include issues with the power adapter, such as internal damage, faulty components, or problems with the outlet or power source.

3. Can using my MacBook while charging make the charger hotter?

Using your MacBook while charging can generate additional heat, which may contribute to the warmth of the charger. However, if you notice significant heating beyond normal, an underlying problem might need addressing.

4. How can I prevent my MacBook charger from getting too hot?

To help prevent your MacBook charger from overheating, ensure it is used in a well-ventilated area and not covered by fabric or other materials that could restrict airflow. Additionally, regularly inspect and clean any dust or debris accumulated on the plugs and connections of the charger and laptop.