what's mean battery type?Nickel

Cadmium (NiCd) �" mature and well understood but relatively low in energy density. The

NiCd is used where long life, high discharge rate and economical price are important. Main

applications are two-way radios, biomedical equipment, professional video cameras and power tools. The NiCd

contains toxic metals and is not environmentally friendly.
Nickel-Metal Hydride (NiMH) �" has a higher energy density compared to the NiCd at

the expense of reduced cycle life. NiMH contains no toxic metals. Applications include

mobile phones and laptop

computers.
Lead Acid �" most economical for larger power applications where weight is of

little concern. The lead acid battery is the preferred choice for hospital equipment,

wheelchairs, emergency lighting and UPS systems.
Lithium Ion (Li-ion) �" fastest growing battery system. Li-ion is used where high-energy

density and light weight is of prime importance. The Li-ion is more expensive than other

systems and must follow strict guidelines to assure safety. Applications include notebook

computers and cellular phones.
Lithium Ion Polymer (Li-ion polymer) �" a potentially lower cost version of the Li

-ion. This chemistry is similar to the Li-ion in terms of energy density. It enables very

slim geometry and allows simplified packaging. Main applications are mobile phones.
Reusable Alkaline �" replaces disposable household batteries; suitable for low-power applications. Its

limited cycle life is compensated by low self-discharge, making this battery ideal for

portable entertainment devices and flashlights.
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