battery discharge

Discussion in 'iPod touch' started by dudiadudia1, Jan 17, 2009.

  1. dudiadudia1

    dudiadudia1 New Member

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    i have discharged it to 10% and it keeps shuttin down by itself...is that enough or should i keep turning it on until it dies completly?
  2. jlgm25

    jlgm25 Well-Known Member

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  3. C000LIN

    C000LIN New Member

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    why are you trying to make it die

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  4. Ryan

    Ryan Well-Known Member

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    yeah, keep turning it on... why u need it to die?
  5. Matt-09

    Matt-09 New Member

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    Never ever discharge your battery fully.
  6. jlgm25

    jlgm25 Well-Known Member

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    any explanation for that?
  7. Ryan

    Ryan Well-Known Member

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    well it damages it.
  8. jlgm25

    jlgm25 Well-Known Member

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    in what way? how?
    kindly explain. i want to know.
  9. Ryan

    Ryan Well-Known Member

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    DO NOT let your Lithium Ion battery drain to zero. This will only deteriorate the battery's life cycle. Lithium Ion batteries should never be "deep cycled." This is a concept left over from old Nickel Cadmium batteries, but does not apply to Lithium Ion batteries. Draining your LiIon battery to 0 before you recharge to preserve the battery's life cycle is a myth.

    http://forums.ilounge.com/archive/index.php/t-206541.html


    Avoid frequent full discharges because this puts additional strain on the battery

    Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a long time, they should be brought to a charge level of around 40% - 60%. Lithium-ion batteries should never be "deep-cycled" like Ni-Cd batteries


    ...And finally, from Apple's own website:

    "Lithium-ion batteries pack in a higher power density than nickel-based batteries. This gives you a longer battery life in a lighter package, as lithium is the lightest metal. You can also recharge a lithium-ion battery whenever convenient, without the full charge or discharge cycle necessary to keep nickel-based batteries at peak performance. (Over time, crystals build up in nickel-based batteries and prevent you from charging them completely, necessitating an inconvenient full discharge.)"

    http://www.apple.com/batteries/
  10. dudiadudia1

    dudiadudia1 New Member

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    well i did a little diggin in to the wiki and finnaly got a clear answer
    wiki quote:
    "Guidelines for prolonging Li-ion battery life:
    *Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often.
    Lithium-ion batteries should not be frequently fully discharged and recharged ("deep-cycled") like Ni-Cd batteries, but this is necessary after about every 30th recharge to recalibrate any external electronic "fuel gauge" (e. g. State Of Charge meter). This prevents the fuel gauge from showing an incorrect battery charge.[23]
    *Li-ion batteries should never be depleted to below their minimum voltage, 2.4 V to 3.0 V per cell. "


    it says that its not good to fully discharge ur ipod on daily bases...i guess thats y it says "WARNING"
    but every 30th charge u shoud fully cahrge and discharge for the sake of the battery meter(so it remains accurate)

    thats all folks///

    here is the link if som1 wnats a deeper view:
    http://en.wikipedia.org/wiki/Lithium-ion_battery

    that is y i tried to let it drain to zero

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