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2009-08-05

The First Battery


Types of battery available:
  1. dry cell
  2. alkaline cell
  3. mercury cell(e.g. battery in watch, calculator)
  4. lead acid accumulator(e.g. car battery)
  5. nickel-cadmium cell(e.g. rechargable battery mostly used in camera)
  6. lithium ion cell(e.g. laptop, iPod)

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