Hello friends, after upgrading to Mac OS X Lion, my MacBook Pro battery life have been greatly affected. After 1.5 hours of luminosity web browsing, battery has existed reduced by 40% to 100% after charging all night. Spotlight indexing complete hard drive during the night and the laptop stay behind connected to the load. The fans seem to be working normally, not at a higher rate. Backlighting is 50% brightness. Any thoughts about it? Thank you.