3 Ways to Fix Dead Laptop Batteries Fastest in 2021

Check if laptop is dead or hibernating?

When using a computer, at least once, you will encounter a situation where the battery is always at 0%. Even if you plug it in all day and night, the laptop still does not work. In such a case, you should check if the laptop battery is dead or hibernating. Here are a few tips to help you handle it right at home:

Method 1: In case the battery percentage shows 30%, it shows that the battery health is still stable. However, the battery may have not been used for a long time, leading to sleep and inactivity. The way to fix a dead laptop battery is to charge it 3 times for 8 hours. This will help the battery come back to life and work like before.

Method 2: You should decide to change the battery immediately if the laptop shows less than 30%. In this case, the battery life has definitely reached the allowable level. Or the battery's working time is very short, about less than 20 minutes.

Method 3: In case the laptop reports a damaged battery, there is no other way but to bring it to the store.

So, before looking for a way to fix a dead laptop battery, check the battery condition. Proper battery storage and use is also a good way to help you maintain better battery life.

Signs that your laptop battery is dying the fastest

Usually, before the battery is completely damaged, the laptop will have some unusual errors as follows:

- Based on battery capacity: Use NirSoft's free software BatteryInfoView to check the battery's energy. If the charging capacity is lower than the available capacity. This means the battery is approaching its lifespan and needs to be replaced.

- Battery calibration level: If the battery wear level is 27.7%, it means the battery wear level is 72.3% (100%-27.7%=72.3%). After performing the calibration, if Windows stops warning, the battery can still be used. Otherwise, you should replace the battery to avoid affecting the laptop.

- Battery life: A sign that your laptop battery is dead is when it runs out of battery faster than when you first use it.

These are basic signs that help users monitor the status and life of the battery. Before learning how to fix a dead laptop battery at home, you should understand the displayed parameters. This is to avoid costly and useless battery replacement.

How to fix dead laptop battery effectively

After knowing how to recognize a dead laptop battery, TipsMake will suggest some ways to fix a dead laptop battery such as:

Fix dead laptop battery with refrigerator

To repair laptop battery with refrigerator, please follow these steps in order:

Step 1: Make sure the computer is turned off, you will remove the battery.

Step 2: Wrap the battery in a dry towel and place it in a waterproof zip bag.

Step 3: After wrapping the battery carefully and ensuring it is not damp, put it in the freezer. The required time to meet the requirements is at least 12 hours and at most 72 hours.

Step 4: After the specified time, leave it in the original condition in the outside environment for about 10 hours. When the plastic bag is no longer cold, you can take it out and wipe it dry to prevent the battery from getting wet.

Step 5: Insert the battery into the device and charge it until the battery is full. Note, you are not allowed to turn on the laptop at this time.

Step 6: The battery is full, you unplug the charger and use it until the battery is low, then charge it again. If you do this about 3 times, the laptop battery will be improved.

Restore battery capacity

For the way to fix a dead laptop battery by restoring capacity is extremely simple. After the recovery process is complete, you should discharge the battery to help restore health. You surf the web, play games, watch movies. to make the computer run out of battery as quickly as possible. When the battery is low, you plug in the charger and turn off the computer. When the battery is full, you continue to do the same. You should repeat this about 4-5 times like that, the laptop battery condition will be much better.

Fix dead laptop battery by replacing with new battery

In the worst case, you are forced to accept replacing the battery. At this point, you have two options: one is to buy a genuine battery; the other is to buy from a third party. Of course, if you have the financial means, the first option is still more recommended. However, you should not worry when buying batteries at outside stores. Because the market has many types of quality OEM laptop batteries with different prices. If you do not have experience buying batteries, you can ask TipsMake for advice.

Lesley Montoya

Update 17 January 2025