It seems that new items become available every day that use rechargeable batteries. We know that rechargeable batteries don't last forever, but there are ways to extend their lifespan. Only a few simple techniques are needed.
Learning to charge the battery will not only save you money, but also protect the environment. Most of the used batteries can be recovered. Here are some ways to restore your laptop battery. You can also click here for more info about rechargeable batteries.
The first step is to find out the type of battery in your laptop. The type is printed somewhere on the box. You will find that you have Nickel Cadmium (NiCd), Nickel Metal Hydride (NiMH), or Lithium Ion (LiON).
Try one of the following techniques to reset the battery and eliminate the memory effect. The first method to drain your laptop battery completely is to turn it on and enter the settings screen. After you turn it on, you should be able to hit Delete.
Then put the battery in a zippered bag and place it in the freezer overnight. The gel in the battery cools down and prevents any memory effects. After removing it from the freezer, let it return to room temperature and then put it back in your laptop.
The second method you can try requires a special resistor circuit that you use to short the battery. If you stop it, your battery will drain quickly and safely. You need to buy this tool or if you have basic mechanical skills, you can.