Why Does My Charger Keep Going On And Off? (5 Simple Fixes)

The invention of smart devices has undoubtedly been a game-changer for humanity, but it’s not without its flaws. 

One common issue users face is when their charger keeps disconnecting, leaving their device uncharged. This can be frustrating, but it’s often due to simple problems like a dirty power port, using the wrong charger, damaged cables, power source issues, or a struggling battery. 

In this article, I’ll walk you through easy fixes to get your charger working smoothly again, so you can avoid the hassle of constantly dealing with interruptions.

Why Does My Charger Keep Going On And Off?

Why Does My Charger Keep Going On And Off?

My charger keep going on and off due to the following reasons:

A Dirty Power Port

A Dirty Power Port

To ensure your device’s battery receives electricity, you need to connect a charging cable to its charging port. However, this connection can sometimes be hindered by obstructions like dirt or lint, leading to intermittent charging. 

This issue can usually be resolved easily by powering off the device and carefully inspecting the port for debris using a flashlight. 

An effective solution is the Ecasp Cleaning Kit, available on Amazon, which provides all necessary tools for cleaning ports of various device models. While cleaning, ensure the port isn’t damaged and remove any remaining debris with a sturdy pick if necessary. 

Once cleaned, the charging cable should fit properly. For those lacking experience, seeking professional assistance is advisable. Repair shops offer daily port cleaning services, addressing any underlying issues promptly.

Incompatible Charger

Incompatible Charger

It’s important to use the correct charger for your device to avoid potential damage and ensure efficient charging. While third-party chargers may seem appealing due to their lower cost and additional features like longer cables and various colors, they often come with drawbacks. 

These chargers may not be specifically designed for your device, leading to slower charging, less secure fits, and quicker wear and tear. It’s crucial to use chargers that are certified for your device, such as Apple-certified cables and adapters for iPhones or recommended chargers for Android devices. 

Using the wrong charger can result in battery damage or slower charging speeds. Always prioritize using the charger that came with your device or one that is compatible and certified to ensure safe and efficient charging.

Damaged Cable

Damaged Cable

If your device isn’t charging properly, the culprit might be your charger or cable, and understanding how they commonly deteriorate can be helpful. 

Cable damage, often from being run over by chairs or caught on corners, can lead to shorts and inconsistent charging, particularly noticeable in colder temperatures due to metal contraction. Chargers have converters that convert power from outlets into a suitable form for devices, but these inverters wear down over time, causing charging issues. 

It’s best to replace the charger when faced with these issues. For Apple products, always use certified cables and adapters. Consider reliable options like the USB-C fast charging set for iPhones and the Samsung branded USB-C charger for newer Androids.

Power Source Problems

If your device isn’t charging properly, it might not be your device at fault but rather the instability of the electricity supply. This issue commonly arises with battery packs, USB ports, and especially wall outlets. 

Despite the perception that outlets are binary in function, various circuit problems can result in inconsistent power output. Simply checking different outlets within the same room isn’t thorough enough; you need to test a different room’s outlet to assess if the problem stems from the power source itself, as this will test an entirely separate circuit. 

Thus, when troubleshooting charging issues not related to your device’s charging port or cable, the power source must be scrutinized as the potential culprit for the lack of stable electricity.

A Struggling Battery

A Struggling Battery

While batteries typically aren’t the first suspect for intermittent charging problems, they can be the culprit after ruling out other issues. Modern devices employ intelligent charging systems to safeguard against overcharging, extending battery lifespan. 

However, aging batteries lose capacity over time due to chemical breakdown, leading to quick charging and premature triggering of the smart charging system. Identifying this involves monitoring battery levels; if it claims full charge but drains rapidly, a replacement is likely needed. 

Even with a healthy battery, malfunctions in the smart charging system can occur. Troubleshooting is complex, but when all else fails, it becomes the prime suspect. Fixing charging controllers varies in difficulty, and seeking tech support is advisable. Ultimately, warranty options should be explored if the problem persists.

How Safe is it to Charge your Phone During A Thunderstorm?

In most cases, it’s generally safe to charge your phone during a thunderstorm without experiencing any issues. 

However, experts advise against it as there’s still a risk of potential damage, particularly in the fields of electricity, telecommunications, and construction. 

The overall recommendation is to err on the side of caution and unplug your phone during thunderstorms to mitigate any potential risks.

Laptop Charger Keeps turning on and off. What’s the problem?

If your laptop charger is repeatedly turning on and off, there are few things to consider:

  • Overheating: Sometimes, if your charger or laptop’s power supply unit gets too hot, it might start turning on and off repeatedly due to a built-in safety feature that kicks in to prevent overheating. 

To avoid this, make sure your charger is placed on a flat surface with good ventilation and no obstructions that could trap heat.

  • Power adapter fault: If your device isn’t charging, it might be due to a faulty power adapter. Inspect the adapter for signs of damage like frayed wires or loose connections. If you notice any issues, it’s advisable to replace the adapter with a new one to ensure proper charging functionality.
  • Incompatible charger: Using an incompatible charger for your laptop may lead to intermittent power supply issues. It’s crucial to utilize the recommended charger from the manufacturer or a third-party alternative that meets the necessary specifications to avoid such problems. 

Additionally, loose connections between the charger and either the laptop or the wall socket can also result in intermittent power delivery. Make sure both connectors are securely plugged in and consider trying a different outlet to troubleshoot potential power supply concerns.

  • Battery issues: Sometimes, a failing laptop battery can lead to the charger intermittently turning on and off. This occurs when the battery is either damaged or reaching the end of its lifespan, affecting the charging process. 

To troubleshoot, consider testing the laptop with a different battery or seeking help from the manufacturer to identify and replace the faulty battery.

Can You Fix Chargers That Keep Going On And Off?

If your charger is acting up, there are simple steps you can take to troubleshoot the issue. 

First, identify the problem by testing the charger with another device to determine if the issue lies with the charger or the device’s charging port. For example, if the charger continues to cycle on and off, try it with a different device and in another power outlet. 

If the problem persists, it’s likely the charger or cable that’s faulty. 

Solutions may include cleaning the charging port, replacing the charger or cable, checking and fixing the power outlet, changing the device’s battery, or repairing a damaged charging port.


How can I fix my phone charger if it keeps disconnecting?

If your phone charger keeps disconnecting, try these troubleshooting steps. 

Firstly, inspect the charging cable for any damage and replace it if necessary.Next, clean the charging port on your phone to remove any dirt or debris. Lastly, test different power outlets or USB ports to rule out issues with the power source. 

By following these steps, you can resolve the problem of your phone charger disconnecting.

Can a faulty charger damage my phone?

Using a faulty charger can harm your phone by delivering unstable power, causing problems like overcharging, overheating, or short circuits. 

To prevent such damage, always use a certified charger designed for your phone model.

How do I know if my charger is the problem or my phone’s charging port?

If your phone isn’t charging properly, first try using a different charger and cable. If the new charger works fine, your original charger might be faulty. 

But if the problem persists with a different charger, the issue could be with your phone’s charging port. It’s best to seek help from a professional technician for further repair if necessary.

How can I prevent my phone charger from going on and off?

To ensure your phone charger remains functional, it’s vital to handle it with care. Avoid excessive twisting or bending of the cable to prevent damage to its internal wiring. 

Keep your phone’s charging port clean to avoid dirt buildup. Using a surge protector can safeguard your charger and phone against sudden power fluctuations.


In conclusion, while the convenience of smart devices has revolutionized our lives, dealing with charging issues like intermittent connections can be a real hassle. 

By understanding common causes such as dirty ports, incompatible chargers, damaged cables, power source problems, or failing batteries, you can troubleshoot and resolve these issues easily. 

Remember to prioritize using certified chargers, keep your charging ports clean, and seek professional help if needed, ensuring smooth charging experiences and avoiding constant interruptions in the future.

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