This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ
Ok what should the NORMAL, battery health be for a 13" MBP bought over the 2010 summer? Mine is 96% is that ok?
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?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.
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 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.In step 5, does it matter if the screen is open or closed?
Well, calibrating too frequently puts cycles on your battery needlessly. Calibrating once every month or so is all you need.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?