Computer slows when battery is low My Macbook Pro running Mountain Lion slows down dramatically when the battery is below 4-5%. All the applications running are very slow to respond, and several have the "Application not responding" message when I right-click on them in the dock. Now everything works fine when the battery is above 5%, so I'm wondering what goes on when the battery is low that causes the performance drag. Basically, I have two questions:


What is causing this lag (for the sake of curiosity)?
How can I fix it (for the sake of practicality)?


System Info:


Device: Macbook Pro (Spring 2012) 13-Inch running Mountain Lion (10.8)
Memory: 8GB
Processor: 2.8 GHz Intel Core i7
Storage: 500GB SSD Drive with more than half free
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It's likely that the MBP is automatically scaling the processing power back to conserve battery power, but that isn't necessarily the only cause.