you need to make sure what sort of battery you are using in your notebook. Four main kinds of batteries are around us nowadays. The oldest sort which is not used as popular as it used to is Nickel Cadmium. The remainder sorts are the Lithium Ion (Li-Ion), the Lithium Polymer (Li-po), and the Nickel Metal Hydride. Because of quite a good weight ratio, the The Lithium Polymer notebook gets to be more and more popular.Just how long can a laptop batteries hold charge are relying on many factors, most of which contains how old it is, what condition it is in, and what sort of programs you are running about the notebook. With the time goes, some batteries will loose their charge, which is just like one’s memory