Android smartphone screen showing 71% battery with a predicted battery life of more than 2 days.
Marcial Triguero / tecnoandroid ©

Reasons why your Android battery charges slowly (solutions)

If you are encountering problems with the loading speed of your Android, these could be the problems. Of course, we will also leave you the solutions.

Martial Triguero
By Martial Triguero
Fast answer

If your Android battery charges slowly, the causes can be varied: from a faulty cable to a dirty charging port. Replacing the cable with a quality one, making sure the charger is the right one, and keeping the charging port clean and in good condition are initial solutions. Also, avoiding unstable energy sources and taking care of the ambient temperature are key actions. If the slowness persists after all, it might be time to consider a factory reset or, as a last resort, upgrading your phone.

Have you ever looked at your phone, begging for that little battery bar to fill up faster? And, in this time of constant connection in which we are almost slaves to our smartphones, slow charging can be real torture. But what do you do when your Android device seems to take charging too easy? I'm going to tell you, because, believe it or not, the solution is often in the details that we overlook.

The heart of the problem: the charging cable

Box of an official Samsung 45W charger with an image of the power adapter and USB-C cable.
Marcial Triguero / tecnoandroid ©

The importance of a good cable

A good charging cable is vital; It is the artery that feeds our precious smartphone. However, like anything that is used (and abused) daily, it can suffer. And this is where quality matters. A low-quality cable or a cable that has been damaged can affect the charging speed. And a cable in poor condition is the beginning of an eternal load.

How to identify a faulty cable

Like modern Sherlock Holmes, we must thoroughly investigate our cable for clues. Notice if it has folds, tears, or looks like it has seen better days. These signs of wear are the usual culprits for frustratingly slow charging.

Recommendations for quality USB-C cables

Now, if you come to the conclusion that your cable has passed away, don't worry. Here is a list of some USB-C cables that will not fail you:

  • Anker PowerLine II USB-C to USB-C: Known for its durability and fast charging.
  • Belkin USB-C to USB-C: ideal for those looking for a combination of performance and design.
  • AmazonBasics USB-C to USB-C: an affordable option without sacrificing quality.

Before using a generic brand cable, I recommend using the official cables indicated especially for the device. If this is not possible, then yes, opt for a third-party solution. On the other hand, remember that a certified cable can make the difference between optimal charging and waiting an eternity for a battery to fill up.

The brain of the operation: the charger

Your charger could be compared to the brain of the entire charging operation. A brain that does not function properly can ruin the efficiency of the entire system. The world of chargers has evolved enormously in this sense, something that batteries themselves have not done. If not, pay attention.

The evolution of chargers and their impact on fast charging

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OPPO SuperVOOC technology with 240W charging

Let me tell you a curiosity: fast charging is a relatively recent wonder. Previously, charging a phone was a tedious process that could take hours. However, with the advent of technologies like Qualcomm's Quick Charge in 2013, charging times were drastically reduced (in fact, as you can see in the video a couple of paragraphs above, OPPO's SuperVOOC technology is capable of charging smartphones in less than 10 minutes).

But be careful, not all chargers are the same and not all phones support the same charging speeds. Therefore, verifying the compatibility of your device with these technologies is essential to optimize times.

How to choose the right charger for your device

If you want to replace your charger, you can't just grab the first one you see. Make sure the power output of the charger matches what your phone can handle. A charger with a lower output power than required will not squeeze the full charging potential of your device, while one with too much power simply will not take advantage of its maximum capacity. Verify that the charger supports the fast charging technologies that your phone is capable of using.

List of the best current wall chargers

And since we don't want you to get lost in a sea of ​​options, here is a list of some of the best wall chargers that you can find on the market:

  • Anker Nano II: Small but powerful, ideal for devices with fast charging.
  • Xiaomi Mi 65W Fast Charger: with support for multiple devices and charging technologies.
  • RFNAYK LED 160W: If you want something quality and don't mind spending a little more, this option is amazing.

Before purchasing a charger, check that it includes the necessary safety certificate and that it is from a recognized brand to avoid safety risks.

The peculiarity of wireless chargers

And if you opt for convenience, wireless chargers are an option to consider as well. Although they tend to be slower than wired chargers, some models already offer comparable charging speeds thanks to technologies such as fast wireless charging. Of course, make sure that your phone is well aligned in the charging base for optimal efficiency and that it does not have very bulky cases that could interfere with the process.

As you can see, choosing a charger is not as simple as it seems. But once you find the right one, the difference in loading speed will be worth it, believe me. And also remember, a quality charger not only saves you time, but also takes care of the battery health of your smartphone long term.

Another key factor: the charging port

USB-C charging port of a smartphone shown in close-up.
Marcial Triguero / tecnoandroid ©

The charging port can be the hero or the villain in the story of your smartphone charging. A clean and well-maintained port ensures perfect electrical fluidity, while a dirty or damaged one can be a source of charging problems and delays.

The importance of a clean and well-maintained loading port

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This option is VERY useful

It's easy to ignore cleaning your charging port. However, this is a contact point that accumulates dust, lint and all kinds of dirt from pockets and bags. A dirty port can cause a bad connection, recognition problems and, as far as we are concerned, slow loading.

Methods to clean the charging port

To address this problem, here are some safe methods to clean the charging port:

  • Use compressed air to gently blow and dislodge dirt.
  • Apply a soft-bristled toothbrush or cotton swab to gently clean.
  • Avoid metallic or pointed objects that could damage the internal connectors.

A damaged charging port is not always the end of the world. Many devices have wireless charging options. This alternative is worth considering if the repair is unfeasible or very expensive.

What to do if the charging port is damaged

If your device still does not charge properly after cleaning, it is possible that the port is damaged. On older phones, it is sometimes a matter of a simple adjustment of the connection pins. On more modern models or in case of severe damage, a professional repair may be necessary.

The power source: the power outlet

You may not have given it much thought, but the power source is a key player if you find yourself in the drama of slow charging. As if it were proper nutrition, your Android needs a robust energy source to recharge properly.

The influence of the power source on the charging speed

Not all energy sources were created equal. You may have an optimal cable and charger, but if you connect it to a weak power source, such as a USB port on a computer or car, the charging speed will suffer. These sources typically offer less amperage, which translates to slower charging. To ensure you are not limiting your phone's charging capacity, always use a wall socket with the appropriate specifications.

Why avoid charging your phone on weak power sources

Charging your phone on weak power sources is not just a matter of time. You may also be risking the long-term health of your battery. Constant and prolonged charging via low power sources could, in theory, affect the battery's charge holding capacity.

The environment: temperature and phone use

The environment in which you charge your phone is as influential as the accessories you use. The temperature and use of the phone while charging are determining factors in the speed at which your device recovers its energy.

How temperature affects charging speed

Your phone's battery is like a tourist: it enjoys a mild climate, but suffers from extremes. High temperatures can cause the charging system to slow down to prevent damage, while extreme cold can decrease the battery's ability to absorb a charge. The sweet spot for charging your phone is between 20 and 30 degrees Celsius.

The importance of not using your phone while it is charging

You know that temptation to check out your Instagram while your phone is plugged in? Well, you could be slowing down the charging process. Using your phone while charging increases the heat generated and uses energy almost as fast as it is coming in, resulting in slower charging.


If you really need your phone to charge fast, leave it alone while it's plugged in. You will see an improvement in loading speed.

As you can see, the battery charge of your Android device does not depend only on a good cable or a suitable charger, but also on external factors such as the type of power source and the environment in which you charge your phone. Paying attention to these details will allow you to optimize the charging process and ensure that your device is always ready to accompany you in your daily life.

And now, let's talk about how the condition of the battery itself can affect the charging speed and what we can do about it.

The survival of your device: the battery

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Does fast charging degrade batteries faster?

Your Android battery is not only the energy store of your technological companion, but it is practically its heart. However, like any heart, over time it can suffer and not function at 100%. It's a fact: batteries degrade over time and their performance decreases.

How and why batteries degrade over time

It is a story of aging that we cannot avoid. Smartphone batteries have charge cycles, which are nothing more than the number of complete charges and discharges they can withstand before their capacity is affected.

For example, many lithium-ion batteries maintain about 80% of their original capacity after 300 to 500 charge cycles. And every time you charge your phone, the battery suffers a little, especially if you expose it to extreme temperatures or let it charge beyond 100% frequently.

Signs of a battery that needs to be replaced

Does your Android no longer hold up like before? If the battery drains much faster than normal or the phone turns off unexpectedly, these could be clear signs that the battery needs replacing. Other symptoms include an increased charging time or if the device becomes much hotter than normal during charging.


If you want to extend the life of your battery, avoid leaving your phone on charge overnight and try to keep the charge between 20% and 80%. In fact, there are manufacturers that allow you to deactivate both fast charges and the activation and limitation of charges up to these percentages. These small gestures can make a big difference in the long term.

Reboot to refresh: factory data reset

Sometimes the best way to solve a problem is to start from scratch, and that also applies to your Android device when the charging speed loses performance. A factory data reset may seem drastic, but it is an effective way to eliminate software errors or application conflicts that could be affecting loading speeds.


A factory data reset will erase everything on your phone, so don't forget to back up your data before proceeding.

How a factory data reset can improve charging speed

Performing a factory data reset removes all apps, settings, and personal data, returning your phone to its original state. This can be useful if a hidden setting, downloaded app, or even malware is wreaking havoc on your battery efficiency.

Steps to perform a factory reset

If you've decided this is the best route for you, remember to back up your important data. Here are the steps to follow to perform a factory reset:

  1. Go to your phone's Settings.
  2. Find the System section and enter Reset Options.
  3. Select Erase all data (factory reset).
  4. Follow the instructions and confirm.

Time to say goodbye? When updating your phone is the solution

Sometimes, no matter how hard we try, our old electronic friend just can't keep up with modern times. If you've tried every possible solution I've given you and your phone still takes forever to charge, it might be time to consider a change.

How to know when it's time to update your device

Updating your device is a decision that should not be taken lightly. Consider the frequency of problems, whether they affect your daily life, and the cost of a possible repair compared to purchasing a new phone. If the balance tips towards upgrading, then it's probably the right decision.

How to make your phone charge faster: summary of tips

Throughout this article, we have reviewed a series of tips to help you improve the charging speed of your Android phone. Let's recap them so you don't miss any:

  • Inspect and, if necessary, replace your charging cable.
  • Choose a suitable charger and check its compatibility and condition.
  • Keep your phone's charging port clean and undamaged.
  • Always use a robust power source, preferably the wall socket.
  • Avoid exposing your phone to extreme temperatures while charging.
  • Do not use the device while it is charging, to avoid additional power consumption and overheating.
  • If you notice your battery degrading, consider replacing it or upgrading your phone.
  • A factory reset can fix software issues that affect charging.

With these tips, we hope you can enjoy a more efficient and less frustrating charging experience. Your Android will thank you!

Lastly, your opinion is very important to us, so do not hesitate to share your experiences and solutions on this topic. Did you find another way to improve the charging speed of your mobile? Do you have any tricks we haven't mentioned? Share it in the comments and let's help each other keep our Androids in the best possible condition!

FAQ about slow charging on Android devices

Why is my Android device charging slowly?

Slow charging can be caused by several factors, including a damaged charging cable, an incompatible charger, a dirty or damaged charging port, a weak power source, or environmental factors such as temperature.

How does a damaged charging cable affect charging speed?

A damaged cable can interrupt current and significantly reduce charging speed due to additional resistance or inability to transmit optimal power.

What features should I look for in a quality USB-C cable?

A quality USB-C cable should be well built, support fast charging, be durable, and preferably have safety and compatibility certifications.

How can I choose the correct charger for my Android smartphone?

Select a charger that matches the input power supported by your device and is fast charging certified if your device supports it.

What should I do if my charging port is dirty or damaged?

If the port is dirty, clean carefully using compressed air or a soft brush. If damaged, it may require professional repair.

How does the temperature and use of the device affect charging?

Extreme temperatures can damage the battery and reduce charging speed. Using your phone while charging can also slow down the process.

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Technology veteran with more than 20 years of experience, passionate about mobile devices, home automation and artificial intelligence. In addition to my fascination with movies and series, I have solid experience in server and database administration. Committed to continuous learning, I always seek to stay up to date with the latest technological trends.
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