What do they mean by 1000 recharges for the new MBP?

Discussion in 'MacBook Pro' started by crizza0309, Jan 6, 2009.

  1. crizza0309 macrumors regular

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    #1
    I don't understand what they mean by that? So after you charge it 1000 times then what?
     
  2. mattwrit macrumors member

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    #2
    On the 1001st time it will leak dangerous and noxious gases.
     
  3. sporadicMotion macrumors 65816

    sporadicMotion

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    #3
    Batteries typically have less charge after a couple hundred cycles. They've just made it longer lasting in life to make up for the fact that it's not user replaceable.
     
  4. dubhe macrumors 65816

    dubhe

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    #4
    1000 cycles before it starts to show an appreciable drop in full charge power. Note a cycle is a 100% of battery, so if you run it half and then recharge that is only half a cycle.
     
  5. crizza0309 thread starter macrumors regular

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  6. dal20402 macrumors 6502

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    #6
    On current Macs, the battery capacity should generally drop to 80% or so after 300 cycles. It often drops like a rock after that point.

    No one knows exact numbers, but I think what Phil is saying is that the battery should still be lasting a reasonable fraction of 8 hours (like 80%, which would be 6 h 24 m) after 1000 cycles.

    If you put a current MB or MBP battery through 1000 cycles, it would probably last five minutes.
     
  7. dubhe macrumors 65816

    dubhe

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    #7
    Kind of, it will start dropping before that, but that will be the average number of cycles before it really starts to fall. But a thousand is a lot, unless you are on batteries all of the time, that is 8,000 hours of use, a year! Or three years if you use it 8 hours a day then charge overnight.
     
  8. alphaod macrumors Core

    alphaod

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    #8
    After 1000 they can't guarantee it won't blow up, disintegrate, whatever.

    It probably won't last 8 hours anyways. 6 if you're lucky.
     
  9. crizza0309 thread starter macrumors regular

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    #9
    Is it bad then if I leave my MBP plugged in for the majority of the day?
     
  10. creator2456 macrumors 68000

    creator2456

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    #10
    Nope. You don't need to use it on battery just because it is there. I say to use AC power whenever possible with a laptop.
     
  11. dubhe macrumors 65816

    dubhe

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    #11
    No, there is a chip in the battery that will stop it charging. But, you should try and use your battery at least once a month, preferably running it right down and recharging fully, to keep it tip top.
     

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