Rechargeable battery
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(Redirected from Secondary cell)
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A rechargeable battery, or a storage battery, is a kind of battery that can be restored to full charge by the use of electrical energy. It is also called Secondary cell because people recharged it with Primary cell when there was no generator.
Rechargeable battery, compared with disposable battery, has many environmental and economical advantages, because it can be discharged and recharged many times. But it costs more to produce and contains more toxic chemicals than a disposable battery.
Rechargeable batteries are used for many mobile machines, like MP3 player, portable media player, mobile phone, electronic dictionary, etc.
