The following guide contains information to help buyers determine when it is time to buy new laptop batteries. There are sections on the main types of laptop batteries, the most common types of laptop battery problems, and some methods that can be employed to extend the life of a battery. Lastly, this guide contains a section on how to both find and buy online.
The first thing to look for when buying a new laptop battery is compatibility with your computer. Most are made to work with specific models of computers, and have this information listed in their product descriptions. To make sure that one will work with your computer, you'll need to know the make and model number of your laptop; if you don't know this offhand or don't have the necessary paperwork, check the inside of your laptop's battery compartment while it is off and unplugged. You may also find the part number of the battery, located on its casing.