I've been having some issues with battery life on my MacBook Pro (15", Mid 2010). I thought I had tracked it down when I found out that the battery was near the end of its life (only holding 60% of its maximum charge) and replaced it with a new one and reset the SMC.
However, the battery still drains at an incredibly fast rate, draining in 90 minutes or less with no applications running. The new battery is at 98% of design capacity (6760mAh) and has 7 loadcycles on it, so it doesn't seem to be the culprit.
The one thing that is a possibility is I've noticed some weird behavior from Notification Center—it seems to jump up to 100%+ CPU usage for spurts of time, which I could definitely see as a battery drain (which is a question in itself: why the heck would it be doing that?)
Does anyone have any other suggestions as to what could be causing battery drain?
Best Answer
If something is using that much CPU it will definitely eat your battery. I'm not completely sure what is causing it but you might wan to download the latest update to your OS (10.9.1 or something of the sort) and re-install it. If it keeps happening you might need to reinstall OS X. I hate re-installing an operating system if at all necessary but I'm not sure what is causing the CPU spike.