PDA batteries vary by brand, depending on the type of PDA you have. Some of the most popular brands are Compaq PDA and the Blackberry, T-Mobile sidekick. Brands like Compaq and HP have many different PDAs so when purchasing a PDA battery is important to choose the correct model number.
PDA’s use Lithium ion batteries. These types of batteries are more in demand since the use of PDA’s and cell phones have increased. Lithium Ion batteries charge rapidly, are lightweight, and make electronics more powerful.
Battery life of a PDA battery varies greatly depending on how the PDA is used. If it is used for simply calendar, note taking, and contact list, the battery will last for several hours on a single charge. If the PDA is used to play games and watch movies, the battery will die much sooner, around 1 to 2 hours of use.