or the right battery-type is another consideration.A number of chemicals can be utilized to make batteries including Li-Poly, Li-Ion, Ni-MH and Ni-Cad.Ni-Cad laptop batteries are no lengthier produced and these times it is the Ni-MH that is produced.Leading of the line batteries are Li-Poly and Li-Ion and if you evaluate the batteries you will find that Ni-MH has more excess weight than any other