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Battery Characteristics

Nickel Metal Hydride (NiMH)

  • Ideal for modern LED rechargeable flashlights
  • Virtually no memory effect. Near full capacity every charge cycle
  • 2 times the energy capacity of comparable NiCad battery
  • Typical cycle life is 3000 cycles

Rechargeable Lithium

  • Ideal for high output LED flashlights
  • Higher energy density than NiCad, NiMH and alkaline batteries
  • No memory effect
  • High cell voltage
  • Flat discharge characteristic
  • Very long shelf life - Very long operating life, 15 to 20 years
  • Typical cycle life is 3000 cycles

Lithium Air Cells (CR-123)

  • Ideal for high output LED flashlights
  • Very high energy density for its size
  • Flat discharge characteristic
  • Very long shelf life

Alkaline Batteries (AA, AAA, AAAA)

  • The most popular premium general purpose battery
  • Four times the capacity of an equivalent size rechargeable NiCad or NiMH battery
  • Suitable for high drain rate applications
  • Good shelf life
  • Not normally rechargeable

Nickel Cadmium (NiCad)

  • Ideal for old style flashlights with xenon bulbs
  • Flat discharge characteristic but falls off rapidly at the end of the cycle
  • Major drawback is recharge memory effect. During charging a chemical process is
  • degrading the battery’s ability to store energy. Each charge degrades the battery more.
  • Eventually the battery can no longer be charged
  • Use of heavy metals makes it environmentally toxic
  • Typical cycle life is over 500 cycles

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