UniEnergy Technologies Battery » Asus Battery Not Charging (6 Methods & Replacement Steps)

Asus Battery Not Charging (6 Methods & Replacement Steps)

Is your Asus battery not charging? Well, there’s no need to panic and buy a replacement battery just yet. This could be due to a connection issue, or your laptop just needs some hardware changes.

Whatever the cause may be, there are several things you can do to resolve this battery charge issue pronto. Here are six of them.

Tools Needed

  • Asus Laptop
  • AC Adapter Charger

Troubleshooting Methods

According to the ASUS Support Website, here are the six things you need to do to get your laptop charging once again:

1. Check your AC Power Connection

In some cases, you just may have a poor connection. To address this, make sure to check your power cord, wall outlet plug, and AC power jack to see if they are loosely connected. If they are, then secure these connections.

If not, then check these parts for signs of damage. This means you need to replace your charger. Remember to buy an original ASUS adapter cable to avoid any compatibility issues.

Granted that your connections are tight and intact, you can try to detach the battery (as long as it is a removable one) and install it in the battery compartment once again.

Pro tip: If you haven’t used laptop batteries for quite some time, expect them to discharge. To fix this, recharge them overnight using a low current.

2. Do an EC Power Reset

If you’ve done the recommendations above and your battery is still not charging, then you should try doing the EC reset.

To start, remove all the peripheral devices attached to your laptop, such as:

  • Printers
  • Memory cards
  • External hard drives
  • External ODD
  • CDs and/or DVDs inside the Internal ODD
  • Dongles

Next, turn your PC off and remove it from the power outlet.

Pro tip: If your laptop is a TP420IA or UX425IA, keep it plugged in. These laptops will need a power supply during the hard reset process.

Remove the ASUS laptop battery and press/hold on the power button for 40 seconds.

After resetting, re-insert the battery and plug your laptop. This should fix the charging issue. But if the battery capacity remains the same, you should proceed to the next step.

3. Update BIOS, Packages, and/or Drivers

An updated battery driver will not only keep your laptop stable and optimized, but it can help resolve charging issues too.

According to an ASUS instructional video, you can update your laptop’s BIOS by doing the following:

  1. Go to the ASUS website. Type in your laptop model.
  2. Search for the appropriate BIOS installer (under the category BIOS) and download it.
  3. Extract the BIOS file and run the program. The laptop should restart and update the BIOS automatically. (Note: BIOS update is successful once your laptop enters the Windows prompt.)

Pro tip: Make sure that the laptop is plugged in while running the BIOS update. Avoid forcing a shutdown as this will interfere with the updating process.

4. Reset the Laptop’s BIOS Settings

Rebooting the BIOS settings will also help charge your PC. To go about this, you first need to enter the BIOS settings. According to an ASUS instructional video, here’s how to do it:

Method 1:

  1. Turn your laptop off.
  2. Press the F2 key and power button simultaneously. Do not release the F2 key until you enter the BIOS settings.

Method 2:

  1. Hover your mouse over the taskbar and click Start.
  2. Go to Settings > System > Recovery > Advanced Startup.
  3. Click Restart Now.
  4. Select Troubleshoot > Advanced Options > UEFI Firmware Settings.

Once you’re at the BIOS page, press F9 and click Default. To confirm the optimized defaults, Select OK and press Enter.

Next, press F10 and choose the ‘Save & Exit’ option. Choose OK again and click Enter.

This will restart your laptop, and, ideally, resolve the battery issue. But if your laptop is still not charging, then proceed with the next step.

5. Run the MyASUS Battery Diagnostics Program

  1. Click on the Windows search bar and type ‘MyASUS.’ If your PC cannot find this, then you’ll need to install it. Here’s a guide on how to do it.
  2. Select ‘Customer Support.’
  3. Go to System Diagnosis > Battery Problems. (If you don’t see this option on your laptop, proceed to the next step.)
  4. Plug in the AC Adapter and select ‘Checkup.’
  5. Follow the recommendations put forth by the MyASUS program.

Again, if this doesn’t work, you may opt to do the process below.

6. Reinstall the Battery and AC Adapter Driver

  1. Type ‘Device Manager’ in the Windows Search Bar and open the program.
  2. Go to Batteries > Microsoft ACPI-Compliant Control Method Battery. Click ‘Uninstall Device’ and select the ‘Uninstall’ option.
  3. Go to AC Adapter and click ‘Uninstall Device.’ Select ‘Uninstall.’
  4. Once you’ve uninstalled both the battery and the driver, restart your laptop. This will re-install them automatically and your battery should be charging again.

Battery Cannot Be Fully Charged: What to Do

Normally, the laptop battery will stop charging after it reaches 100%. But if it no longer charges after reaching 95%, you shouldn’t be worried. It is the device’s means of protecting its battery.

Thanks to ASUS’ relative state of charge (RSOC), the following conditions will happen:

  • If the capacity is below 95%, and the AC adapter is connected, the battery will charge up to 100% and stop.
  • If the capacity drops from 100% to 95-99%, it will not charge until the battery decreases below 95%.
  • If the battery remains 94-97%, it will not charge even if it’s plugged in. You may opt to disconnect/reconnect the charger until the laptop charges 100%.

As you see, this occurs because of the Lithium-ion battery’s chemical characteristics. Over time, it will slowly self-discharge even if the battery doesn’t use any of its power.

And, should your battery stop charging after 60 to 80%, then you need to set up the ‘Battery Health Charging’ program. This allows you to utilize your laptop’s maximum RSOC, thus extending the battery’s lifespan.

Through this, you can change plan settings and choose from any of the following power options:

  • Full Capacity Mode – battery will be charged to 100%
  • Balanced Mode – battery will be charged to 80%
  • Maximum Lifespan Mode – battery will only be charged to 60%

How to Replace a Faulty ASUS Battery

How to Replace a Faulty ASUS Battery

If you have performed all the steps above, but to no avail, then you probably need to fit your laptop with a new battery. This is especially the case if you’ve used the laptop daily for two years (this is its’ maximum lifespan.)

First, you need to remove the old battery. If it’s removable, then all you need to do is turn off your PC, flip it over, and open the latch securing the battery. That’s it!

But if your battery is non-removable, then you will need to perform the following additional steps:

  1. Turn your laptop off and flip it over.
  2. Remove the screws affixing the battery.
  3. Pry the battery compartment open with a card or screwdriver.
  4. Disconnect the cables securing the battery to the laptop.

Once you’ve removed the old battery, it’s time for you to take a good look at it (and identify it.) There are many battery types available, so you need to get the right one for your laptop model.

Make sure to look at the following specs:

  • Voltage: refers to the number of volts your laptop needs to run.
  • Capacity (mAh): refers to your laptop’s autonomy. The higher the mAh, the longer your battery will remain charged.
  • Power (Wh): which indicates the battery’s power.

Once you’ve identified the old battery, you can go ahead and buy a replacement. Insert it, and close the compartment (whether via latch or screws.)

Pro tip: Asus laptop batteries contain lithium, which means it is harmful to the environment. Make sure to recycle it properly – don’t throw it wherever!

To prolong the lifespan of your new battery, make sure to follow these best practices:

  • Do not let your battery drain to 0%. Make sure to charge it once it hits 20%.
  • Don’t leave your laptop plugged in all the time. This will damage the battery due to overheating
  • Don’t work under direct sunlight, especially if it’s a particularly hot day!
  • Don’t work near the heater.
  • Don’t put your laptop on top of a pillow or any irregular material. This will negatively affect your laptop’s ventilation.
  • Subject your battery to charging cycles, meaning discharge and charge it regularly.
  • Store your laptop (if it will not be used for a long time) with a charge of at least 50% – in temperatures ranging from 10°C – 35°C (50°F – 95°F.)
  • Don’t store your laptop in a damp environment because this will increase battery discharge rates.
  • Don’t keep your laptop in cold areas because low temperatures can affect the battery’s internal chemicals.


If your ASUS laptop battery is not charging, you have the option to:

  • Check your cable connections
  • Perform a power reset
  • Update the BIOS, packages, and/or drivers
  • Reset the BIOS settings
  • Run the MyASUS Battery Diagnostics program
  • Reinstall the battery and AC adapter driver

Have any questions about these methods? Shoot us your question below!

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