Nickel Metal Hydride. (NiMH)
These batteries offer capacities up to 30% higher per charge than NiCd batteries
of the same physical size.
They are less likely to be damaged by the 'Memory Effect'.
Most laptops use this type of battery, it can keep up to 4 hours of charge.
Nickel Cadmium. (NiCD)
The most popular type of rechargeable batteries used in the industry.
Can be damaged by repeated charging without fully discharging.
This is called the 'Memory Effect'.
Lithium Ion. (LION)
The newest rechargeable battery chemistry available. Lithium Ion is not affected
by the 'Memory Effect'. It can deliver the same capacity and run time in a smaller,
lighter pack. The chemistry is most popular in cellular and laptop products.