- The most popular rechargeable batteries
are AA and AAA; these battery cells are most commonly made
of either NiCd or NiMH. NiCd (Nickel Cadmium) is the traditional
type with a relative lower capacity when compared with NiMH
(Nickel Metal Hydride, also named the Environmentally Friendly
Battery). Since Cadmium is toxic, it pollutes the environment;
therefore, NiMH is designed to replace NiCd as well as to
deliver more power.
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