Tell you 2 ways to fix laptop battery at home safely but effectively

 Method 1: Frozen laptop battery

This method is simply put the laptop battery in the refrigerator. It sounds a bit odd, which many people fear but this is considered a good way to fix laptop battery, which has been verified. It can 'revive' battery health from 60% to 80%. More importantly, this method does not cost anything but only wastes time waiting. The steps are as follows:

1. Step 1: Turn off the laptop, remove the battery from the device
2. Step 2:  Wipe the battery clean and dust off, then place it in a dry towel, place in a completely sealed plastic bag (use a zip lock bag or tie several times). Make sure that a 100% sealed bag with water in the refrigerator will run into the battery and damage the battery.
3. Step 3: Put the battery in the freezer or freezer compartment for at least 12 hours. Leave it on for as long as possible, preferably 2 to 3 days.
4. Step 4:  When removing the battery, let the battery naturally thaw itself in ambient temperature. When you feel the battery has reached room temperature, check. If possible, remove the battery, wipe it clean with a dry towel.

Putting batteries in the fridge to 'revive' is a super simple way anyone can do

1. Step 5: Put the battery back in the laptop but DO NOT open the laptop. Only plug the battery charger in and charge it fully.
2. Step 6: In the next few times use the device, use up to clean and then fully recharge to recover the battery better.

Method 2: how to fix laptop battery replace cell battery in battery

This second method is not easy to implement. Only do it if you are knowledgeable and have basic knowledge about machines, electronics, and liking.

1. Step 1: Remove the battery from the laptop.
2. Step 2:  Use a thin knife or a screwdriver to remove the battery cover. This step should be done very carefully to avoid cutting into the circuit inside.

When removing the battery, be very careful not to damage the internal circuitry

1. Step 3: Read the parameters printed on the battery and remember the position of the connectors, wires, .
2. Step 4: Buy a new replacement battery. It is best to buy a battery with a milliamp rating higher than the old one. Note when buying laptop batteries to buy the right battery with the corresponding cell number old batteries. This laptop battery is not expensive, only from about $ 5 / tablet.
3. Step 5: Use the Voltmeter to check if the battery is fully discharged (if it is not already running out, you may be shocked).
4. Step 6:  Use a soldering iron, remove the old batteries from the circuit carefully.
5. Step 7: Solder the new battery into the system so that it is in the position of the original welds, wires. Even a slight mistake can ruin everything, you may even get an electric shock or fire.
6. Step 8:  Stick the seal with tape and close the battery cover. Insert the battery into the laptop and use normally.

Changing battery cells is very economical but difficult, not confident in the workmanship, you should not do

When the battery fails, the most common solution is to buy a new laptop battery but the price is a bit expensive. Selecting the above suggestions will help you save a lot. Of the 2 ways to fix the laptop battery above, the first is very easy and the second is very difficult (but the effect is completely new). If you are not too knowledgeable about laptop machinery, you should still bring the device to a repair and warranty facility to buy batteries and replace batteries for peace of mind!