I recently purchased a 17" Mid-2010 MBP and put in 8GB and a OCZ Vertex 2 SSD drive. Ever since the upgrades and clean install of OS X, my system seems to not like to go to sleep when the battery gets low. Example, I was surfing the net earlier and the battery got down to 5% and I didn't get any type of warning that the battery was low. It went all the way down to 1% and then 0% and then just shut off instead of putting itself into sleep mode like it did before the harddrive and memory upgrade. Has anyone experienced this before? Is it an issue with the SSD interaction with the OS or is my computer just a POS? Thoughts?