These batteries are constructed with the widely used Lithium-Ion type cells, they are normally used in this kind of device because of their lack of memory effect and excellent power to weight.

As these kind of cells require balance it is important to charge fully before first use, also ensure they are charged regular if put in storage and never let them run down to far else you could end there life prematurely,

Packard Bell E6307 Easynote Laptop battery