Today’s laptops usually come with lithium ion or lithium polymer batteries. Lightweight and powerful, the lithium ion or LiIon batteries are powerful enough to run a laptop for several hours before needing to recharged. With normal use, LiIon batteries can last for about three years from date of manufacture.

Follow your manufacturer’s guide as to proper care and your battery will last for the expected time. How do you know when the battery needs replacement? The clearest indication is when the laptop cannot be operated unless plugged in through the power supply adapter. Technorati Profile