What is the difference between Nickel Cadmium (Ni-Cad), Nickel Metal Hydride (Ni-MH) and Lithium-ion (Li-Ion) batteries?

Batteries in portable electronic devices such as laptop, digital camera, camcorder, scanner, printer, etc., are typically using either Nickel Cadmium (Ni-Cad), Nickel Metal Hydride (Ni-MH) or Lithium Ion (Li-Ion) battery cell. Each type of rechargeable battery chemistry has its own unique characteristics: Nickel Cadmium (Ni-Cad): Ni-Cad battery is the oldest rechargeable chemistries used in today's portable electronic industry. Its low cost and high discharge rate make it suitable for low cost electronic applications such as games, toys, as well as the high discharge applications like cordless power tools.

Due to its low energy density, Ni-Cad is undesired for use in equipment such as notebooks, digital cameras, camcorders, and scanners, etc. Furthermore, Ni-Cad has a chemistry-related problem known as “Memory Effect”, which limits the discharge capacity of the cell if it is not completely discharged during each use. Nickel Metal Hydride (Ni-MH): Ni-MH battery is the most commonly ... more.

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