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N

NiCd or Nickel Cadmium

NiCd cellphone batteries are known for their "memory effect". NiCd's develop the less than nicad batteries develop a memory effect if repeatedly charged without being fully discharged. They perform best if used regularly, because they self - discharge if left unused, losing as much as 10 percent of their energy the first day, then 1 or 2 percent per 24 hours thereafter. Nickel Cadmium battery chargers should have preventative circuitry protecting from overcharge. These batteries are highly toxic and harmful and should be disposed of as toxic waste.

Nickel Metal Hydride

These cellphone batteries can have 30% more capacity than a same sized NiCad battery. These batteries are also relatively non toxic. However, unlike NiCad, deep cycling or discharging of the battery contributes to a decline in it's life, and so does constant over charging. In general, Nickel Metal Hydride technology is more sensitive to overcharge, but the recommended charging process is a constant charge. They should always be rapid charged.

 

RD Glossary by Run Digital