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  1. 28th June 2009, 04:08 PM #1
    Chimei
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    Default MBP Battery Health

    Hi, a few days ago I brought a new MacBook Pro and I was wondering if it was normal for battery health to go down after only 6 cycles



    Is that normal?
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  2. 28th June 2009, 04:15 PM #2
    wmyeoh
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    Yes. Same thing happened with mine.
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  3. 29th June 2009, 12:12 AM #3
    Chimei
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    Ok now I'm getting worried, this is just a few hours later



    I've only had this MBP since the 22nd
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  4. 29th June 2009, 07:25 AM #4
    Kevin
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    Normal.
    Mid 2009 15" MacBook Pro - 3.06Ghz - 8GB RAM - 256GB SSD | Mid 2009 13" MacBook Pro - 2.26Ghz - 2GB - 160GB | 160GB AppleTV | iPhone 3GS 32GB
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  5. 29th June 2009, 11:26 AM #5
    Dux
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    Mmm, usually I find the health of a battery hovers around 95-99% for the first year or so, and then heads down a good 10-20% each year after (depending on use, of course).
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  6. 29th June 2009, 11:54 AM #6
    spargo
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    Quote Originally Posted by Dux View Post
    Mmm, usually I find the health of a battery hovers around 95-99% for the first year or so, and then heads down a good 10-20% each year after (depending on use, of course).

    I'm onto my second MBP battery (the machine is currently 16 months old), and the newest battery has dropped down to 90% health after only 19 cycles and 3 months. I will be seeking yet another battery as that is what I would call a joke.

    I will be making sure it is not the same make as the previous 2 also.

    I'm just lucky it is 70% desk-bound, as I doubt I could rely on it on the road like I used to the PBook one apon a time..
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  7. 29th June 2009, 01:04 PM #7
    Chimei
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    Alright, Thanks guys feel alot better now.
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  8. 29th June 2009, 02:35 PM #8
    spargo
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    Quote Originally Posted by Chimei View Post
    Alright, Thanks guys feel alot better now.
    Just keep track of it - CoconutBattery is what I use.. Check the Googles for it.
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  9. 29th June 2009, 02:43 PM #9
    Dux
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    Quote Originally Posted by spargo View Post
    I'm onto my second MBP battery (the machine is currently 16 months old), and the newest battery has dropped down to 90% health after only 19 cycles and 3 months. I will be seeking yet another battery as that is what I would call a joke.

    I will be making sure it is not the same make as the previous 2 also.

    I'm just lucky it is 70% desk-bound, as I doubt I could rely on it on the road like I used to the PBook one apon a time..
    Jesus Christ, you must drain you battery and charge it up again every single day. Doing this will kill it fastest in my experience.
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  10. 29th June 2009, 03:37 PM #10
    PeteinSA
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    Pardon my ignorance, but isn't that the point of a laptop - using it out of the office for those that need mobile computers?

    I haven't drained it every day I've had it, but I reckon I'll come close to it. Is this going to prematureliy kill the battery? If so, Will Apple come to the party if I make a warranty claim?

    Whats the point of a desk-bound laptop. If it aint going to move, isn't it cheaper to get a new 24" iMac?

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  11. 29th June 2009, 04:38 PM #11
    Kevin
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    Quote Originally Posted by PeteinSA View Post
    I haven't drained it every day I've had it, but I reckon I'll come close to it. Is this going to prematureliy kill the battery? If so, Will Apple come to the party if I make a warranty claim?


    Peter
    Depends on cycle count
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  12. 29th June 2009, 11:05 PM #12
    PeteinSA
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    Not too shabby...

    | MacBook Pro 15" Unibody 2.4GHz | 4GB Ram | 320GB HDD @ 7200 | 8GB Green iPod Nano 3rd Gen | White 16GB iPhone 3GS |
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  13. 29th June 2009, 11:15 PM #13
    spargo
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    Quote Originally Posted by Dux View Post
    Jesus Christ, you must drain you battery and charge it up again every single day. Doing this will kill it fastest in my experience.
    Every single day for only 20 cycles over 3 months? Err, no. That would not mean every single day.

    It discharges when it goes for a walkabout, but that hasn't been too often (hence the low cycle count). Hence why this is shitting me to tears for it to be happening again.

    Sell a $2.5K laptop, and supply it with crap quality batteries. Jesus Christ alright!
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  14. 1st July 2009, 02:54 AM #14
    strouprob
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    Everyone that I have talked to have had a different experience with their battery. I have had my MBP 17 for three years, heavily used, and my battery is just now going bad. It's total charge time has diminished over time. I use my MBP mostly from home but knowing how a Lithium battery works, I used it unplugged every day untill it discharges. My experience is that the deeper you cycle the battery the longer it holds a charge over time (still diminishes). Also the key is that you never let it completely discharge, this is not good for Lithium batteries as apposed to older technology. I hope this helps.
    Robert
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  15. 1st July 2009, 06:58 AM #15
    DebB
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    I'm on my 3rd battery in 2 years. My mbp is my main computer and I use it for several hours a day. So I have a high cycle count. My last battery dropped from 86% to 49 at around 280 cycles. My new battery is at 99% after a week. I don't have confidence in these batteries- it is my only gripe with Apple. They clearly have a product that doesn't work well, but continue to sell us the same crappy batteries. At $200 a pop it's not like changing your watch battery. It bugs me that the new models supposedly have better batteries but they haven't applied this technology to replacement batteries for previous models. Surely there must be a way.
    Macintosh SE (OS 7.1),Powerbook 540c (OS 7.6) ; iBook G3 (Tiger) ; G4 emac 1ghz (Panther) ;15" MBP Intel Core i5 2.4ghz (Snow Leopard) - (Thank you Apple for replacing my Santa Rosa); iPod Touch 8gb; iPhone 3G; imac G5; iPad 2
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