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ryanb914

macrumors member
Original poster
Jul 24, 2010
34
0
Ok what should the NORMAL, battery health be for a 13" MBP bought over the 2010 summer? Mine is 96% is that ok?
 
La lala.

96% sounds about right, have you calibrated it properly?

My MBP had 91% once and now is back at 99%.

Btw:
This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ

Apple on notebook batteries

Apple Portable: Calibrating your computer's battery for best performance

Laptop Battery Guide



Btw 2: MRoogle is a good tool to search these fora for already existing threads about questions you have. It might be able to answer you quicker than waiting for an answer.

Btw 3: La lala.
 
Last edited by a moderator:
About two weeks after I purchased my MBP I installed Coconut and noticed that my max battery capacity was 97%, with 32 cycles, and my machine was approximately 4 months old. I thought it was a rip but maybe it is just normal.
 
Ok what should the NORMAL, battery health be for a 13" MBP bought over the 2010 summer? Mine is 96% is that ok?

This is the 7th thread you've started on battery issues. I highly encourage you to read the Apple Notebook Battery FAQ that spinnerlys directed you to back in July. It will answer all your battery charging/calibration/health questions, if you take the time to read it. There's no need to create duplicate/redundant threads when the answers have already been provided to you.
 
I've read the information about calibrating the battery and have 2 questions. First the info I read:

To calibrate a portable computer battery:

1. Plug in the MagSafe Power Adapter and fully charge the battery.

When the battery is fully charged, the light on the MagSafe Power Adapter connector changes to green and the Battery icon in the menu bar indicates that the battery is charged.

2. Allow the battery to rest in the fully charged state for two hours or longer.

You can use your computer during this time as long as the power adapter is plugged in.

3. With the computer still on, disconnect the power adapter and continue to use your computer.

4. When you see the low battery warning, save your work and close all applications. Keep your computer turned on until it goes to sleep.

5. After your computer goes to sleep, turn it off or allow it to sleep for five hours or longer.

6. Connect the power adapter and leave it connected until the battery is fully charged.

You can use your computer during this time.
In step 4, I believe the low battery starts at 19%. Should I keep on running it until the battery level is in the single digits or it doesn't matter?

In step 5, does it matter if the screen is open or closed?

Thanks.
 
In step 4, I believe the low battery starts at 19%. Should I keep on running it until the battery level is in the single digits or it doesn't matter?
It doesn't matter... just save your work before it gets too low. Or just do something that doesn't require saving, like web browsing.
In step 5, does it matter if the screen is open or closed?
It doesn't matter.
 
Thank you very much. I've been reading the support info about battery life from the links provided and it's been incredibly helpful. I will be much more diligent about calibrating. Can you calibrate too often, like weekly?
 
Thank you very much. I've been reading the support info about battery life from the links provided and it's been incredibly helpful. I will be much more diligent about calibrating. Can you calibrate too much?
Well, calibrating too frequently puts cycles on your battery needlessly. Calibrating once every month or so is all you need.
 
Battery - coconut battery (reads the same as istat pro)

normal? seems like thats not.
 

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