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9V 1000mAh External Battery & Leather Case for iPod nano

9V 1000mAh External Battery & Leather Case for iPod nano
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9V 1000mAh External Battery & Leather Case for iPod nano
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Specifications:

    EMA008
  • Brand New With 1 Year Warranty!

More information below

    Weight: 255g
    Voltage:9v
    Capacity:1000mAh
    Ver. 05:
    Battery Pack + #C Case
Carrying Case:
#A Case: for iPod mini only
#B Case: for iPod 3rd, 4th Generation & Photo
#C Case: for iPod nano

**Remarks: not compatible with new version iPod nano




Battery Knowledge

    What is rechargeabel battery self discharge?
  • Primary battery or full charged secondary battery, when put aside for a period, it s capacity will decline or lose,this phenomenon calls self discharge that is electricity flee away.It is decided by the inner electro-chemistry system, similar to water leakage from pond or reservoir.
    What is the ambient temperature affects the battery performance?
  • Low temperatures (e.g. -15oC) will obviously reduce Ni-Cd and Ni-MH battery discharge rate. At -20oC electrolyte is at its freezing point, charge speed will greatly slow down. At low temperature (under -15oC) charge will raise the internal gas pressure and probably unseal the safety vent. Ambient temperature of 5oC to 30oC is the best range to get effective charge. Generally with temperature rising charge efficiency will become higher. But when the temperature rises to 45oC or higher, the materials performance in the battery will be degenerated and battery service life will be shorten greatly.
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