Batteries are one of the weak links in laptop computers. When you’re away from an outlet, your ability to use your computer is completely limited by the amount of battery power available. Batteries also tend to wear out faster than other laptop components, typically exhibiting performance degeneration with just two or three years of use. Once the performance gets bad enough, you’ll need to replace the battery. It’s fairly easy to test your battery’s charge and health, and by doing so you can help avoid unwanted surprises. Tips Writer Bio
