Rattling Noise From Computer While Charging?

In your daily life, have you ever encountered a computer making a rattling noise while charging? This sound is disturbing to listen to and can sometimes be just a minor disturbance, but it can also signal a potential problem with the battery or power system. Read this blog Common Causes of Laptop Noise While Charging and the corresponding solutions to help you use your computer device safely and efficiently.

Common Causes Analysis

Here are a few of the main reasons why your laptop may rattle while charging:

1. Aging or Damaged Power Adapter
   If you notice a buzzing noise coming from the charger itself, it may be that the electronics inside the power adapter are aging, loose, or damaged. This type of problem is more likely to occur when using an inferior or non-original adapter.

2. Aging or swollen batteries
   Laptop batteries can chemically age, causing them to become unstable during charging, resulting in a slight rattling sound

3. Poor contact between the plug and socket
   An unplugged plug or dust inside the socket can also result in an unstable transfer of current, which can cause a slight nuisance current sound, sometimes accompanied by sparks or flickering very dangerous.

4. Cooling fan sound mistaken for battery sound
   During the charging process, the computer may be accelerated because of the temperature rise fan operation, this fan cooling sound is normal, but sometimes it will be mistaken for the battery or the motherboard issued by the noise.

5. Internal circuit resonance or electromagnetic interference Some inductive and capacitive components inside the computer may generate resonance or slight electromagnetic noise when operating at high frequencies, especially when running large programs under high loads or while charging.

6. Short-circuiting or current overload on the motherboard
   If there is a short-circuiting, aging of the circuit board, or overloading of the motherboard or battery connector, it may also trigger a rattling noise, accompanied by performance degradation, inability to charge, and other malfunctions.

How to troubleshoot the source of the noise

Here are some simple troubleshooting methods to help you locate the problem:

• Test by replacing the power adapter
• Test whether there is still noise by replacing the laptop with another laptop or other adapter to determine whether the power adapter is faulty.

• Observe and listen to the location of the noise
• Listen carefully to the source of the sound near the plug, adapter, and battery area.

• Clean the plug and socket regularly
• Wipe the plug and socket gently with a clean cloth after unplugging to ensure good contact.

• Defective cooling design
• Some thin and light notebooks sacrifice cooling for size, triggering high-speed fans with light use.

• Aging of silicone grease
• The heat-conducting silicone grease between the CPU/GPU and the cooling module dries up, preventing effective heat transfer.

• Typical performance
• Noise persists after cleaning dust, and the body temperature is abnormally high.

• Other hardware problems
• Hard disk failure, power adapter current sound, or loose internal parts may also produce humming noise.

---

Solutions for different problems

• Replace the power adapter
• If you confirm that the power adapter is making a strange noise, you should promptly replace it with an original or certified model, and avoid using a low-cost off-brand charger.

• Physical Inspection
• Shake the notebook to listen for loose noises (e.g., screws falling out). Check whether the power adapter is hot and accompanied by current sound.

• Replacing the laptop battery
• If the battery is bulging, overheating, or in low health, it is recommended to replace it with a new one and choose a high-quality, compatible laptop battery.

• Dealing with poor contact
• Clean the socket regularly, and the plugging and unplugging action should be steady, do not pull forcefully, in order to prevent the metal contacts from loosening and generating an arcing sound.

• Internal problems to the professionals
• If you suspect that the motherboard, circuit problems, it is recommended that you do not disassemble the machine yourself, should be handed over to a qualified repair point to deal with.

• Avoid excessive use while charging
• Try to avoid running high load programs such as large games, rendering software, etc. while charging to reduce heat generation and current pressure.

---

How to prevent similar problems from occurring

Regularly check and replace the power adapter and charging cable, try to change to a different power outlet, regularly clean dust and debris from the surface of the power adapter, and check for loose parts or damaged connectors.

• Check and replace the battery
• Use the Battery Management Tool to check the health status of the battery. If the battery is aged or damaged, it is recommended to contact after-sales service for replacement.

• Clean the fan
• Clean the dust inside the notebook regularly to keep the cooling system working properly. If the fan bearing is worn out, it is recommended to contact a professional for replacement.

• Avoid Electromagnetic Interference
• When charging, try to stay away from devices with strong electromagnetic signals such as cell phones and wireless routers, or use shielded cables to reduce interference.

---

If you are looking for a quality replacement battery?

If you are repairing laptops for customers or doing wholesale batteries, welcome to contact us. We specialize in high-performance and compatible laptop batteries wholesale, suitable for multi-brand laptops, support global shipping.