How To Tell If Laptop Battery Or Charger Is Bad? Full Guide

Post Disclaimer

We independently review everything we recommend. The information is provided by How To Tell If Laptop Battery Or Charger Is Bad? Full Guide and while we endeavour to keep the information up to date and correct, we may earn a commission if you buy something through links on our post. Learn more

Laptop batteries can degrade or lose their ability to hold a charge over time. Whether your laptop suddenly stops working, Do you know How To Tell If Laptop Battery Or Charger Is Bad?

You can typically figure out if the problem is caused by removing the battery from its bay (on the bottom or side of the laptop) and running the laptop solely on the AC adapter. If the laptop works with the adapter but not with the battery, the battery has most likely died, shuffled off its mortal coil, or somehow become useless.

You can further test this theory by using a battery from another laptop of the same kind that you know works fine. You might borrow a coworker’s battery or bring the laptop to a cooperative retailer’s repair counter.

If your battery-less laptop does not turn on when connected to an AC adapter, either the adapter or the laptop’s internal circuits have failed. Use a known-good adaptor to see if the problem is caused by the cords or converter or if the problem is deeper within the laptop itself.

How To Tell If Laptop Battery Or Charger Is Bad?

Utilizing your battery is the greatest way to test it. Without the charger hooked in, turn the laptop on. You can be sure that whatever the problem is, it has to do with your battery if it won’t switch on but will turn on with the charger connected.

Tell If Laptop Battery Or Charger

Troubleshooting A Laptop That Is Not Charging When Plugged

Test The Battery And Check If It’s Dead

If your laptop won’t charge, it’s possible that the device’s battery is cracked, damaged, or dead. If your device has a removable battery, remove it and press and hold the power button for at least 20 seconds to delete the device’s remaining power.

Connect the laptop to an outlet while the battery is removed, and then try to turn it on without it. This will help you determine whether your device’s battery is the source of the problem. If the gadget turns on, you’ve established that you need a new battery.

If you have a laptop with a sealed battery pack, the situation becomes more complicated. The only thing that makes it more difficult is the fact that you’ll have to reach the power pack as well.

Examine The Drivers And Make Sure They’re Up To Date

Another factor that could prevent a laptop’s battery from charging is outdated drivers. If the problem persists, try updating your laptop’s drivers. By pressing the Windows key on your keyboard and selecting Control Panel, you can get to your control panel.

Go to Hardware and Sound, and then to Device Manager. Look for the Batteries item in the Device Manager window, and then expand it to reveal a dropdown selection with two options.

Select Update Driver from the context menu of the first item, Microsoft AC Adapter. Then, right-click on the second item, Microsoft ACPI-Compliant Control Method Battery, and choose Update Driver from the context menu. After that, reboot the laptop to see if the problem with charging is resolved.

Check If There’s Something Wrong With The Connection

When a laptop fails to charge after being plugged into a power source or outlet, the first thing to look for is a loose connection. Focus your attention on the components involved in providing it because it has anything to do with power.

Double-check that your power cord is connected to the power source and that the plug-in adaptor is hooked to the AC input dock on your laptop. You can also look at the charger’s wires and cords.

If the charger cables are frequently curled up or accidentally stretched, they can be destroyed. Damaged wires can prohibit electricity from being transferred and the gadget from receiving power.

How To Tell If A Laptop Charger Is Bad?

A clear indication that the charger is functioning is if your laptop or Windows informs you that the battery is charging. Your charger likely has to be replaced if the connection appears erratic. For instance, if charging stops when the charger cord is moved.

How To Tell If A Laptop Charger Is Bad

How To Tell If A Laptop Battery Is Bad?

When the battery is operating, a slight increase in temperature is typical, but overheating is hazardous. If your laptop battery doesn’t charge when plugged in, it may be time to replace it. Shutdowns and short run times may be signs of a faulty laptop battery.


The charger and battery are two of the laptop’s most critical components. If you don’t have a charger, you’ll go to great lengths to charge your laptop. Furthermore, the battery is critical because it allows this device to be portable. You can find out. How To Tell If Laptop Battery Or Charger Is Bad?

You can also discover a defective battery by running software or noticing that the laptop only turns on when the charger is plugged in. In terms of repair, there isn’t much that can be done with the battery. The charger, on the other hand, may be repaired by replacing the cord and replacing the voltage IC in the adapter.

Frequently Asked Question

What is the best way to test my laptop battery charger?

Using a voltmeter, check your charger. Set a voltmeter to 25 VAC if it’s an AC charger. Make sure the contacts and probes are in contact before looking for a reading. The charger is useless if there is no reading on the meter.

Is it the laptop battery or the charger that’s causing the problem?

The charger would still power the laptop and charge the battery even if the battery was dead. Because the laptop isn’t powered by the charger, it’s either the charger or the jack.

What happens if your laptop refuses to switch on?

Remove all power from the computer. Remove the battery and disconnect the AC adapter (if possible). To drain any remaining power from the laptop, hold down the power button for thirty seconds. Replug the AC adapter into the laptop without replacing the battery.

How can I tell if my charger is defective?

You notice some discolored residue or debris around the charge port. The charger and batteries are in perfect working order.

When I turn on my laptop, why does it not charge?

Check the battery’s integrity first. If your laptop has a removable battery, remove it and press and hold the power button for around 15 seconds to drain any remaining power. Then, while the battery is still removed, connect the power cable to the laptop and turn it on.

I don’t have a charger, therefore how can I charge my dead laptop?

A power bank is one of the most convenient ways to charge your laptop. A portable battery for your laptop is known as a power bank. All you have to do now is connect your laptop to the power bank. The nicest part about power banks is that they don’t require you to plug them into an outlet to charge your laptop.

Is it possible for a poor charger to harm a laptop?

According to research, using the wrong charger with a higher voltage capacity might cause the device’s temperature to rise, resulting in a two-fold reduction in the device’s lifespan for every 15 to 20 degrees Celsius increase in temperature.”

How can I tell if the problem is with the battery or the charger?

Check the voltmeter’s reading to see where the pointer is pointing. Switch the test probes if it’s on the left side or the negative side. It will show that the battery is receiving some charge if it is on the right side. The amount of charge it receives is determined by where it points on the meter.

Similar Posts