Hi; I own a new Macbook Pro 13 inch Early 2015. Against my better judgement I updated the OS X to 10.10.3 + supplementary update. Ever since the update my MB has been showing battery life of slightly more then 6 hours. My energy load on MB is fairly minimum. I usually only use Apple's iWork (mostly pages), or VLC when I need to watch movies. Yesterday I reset the PRAM to see if it fixes my battery life. After the reset MB showed that I have 4:50 hours at 100% charge (drop from 6 hours). I left the machine idol for 15 minutes or so, came back & found the time remaining had gone up to 8:00 hours. However, once I restarted the machine it came back 3:30 hours, and the gradual increase only went up so far to 6:00 hours. To just give out my problem in pointers: * MB is not calculating the time remaining properly after the PRAM reset. I starts with 3:30 hours & tries to gradually increase the time. Where as before the PRAM reset it would start with 6+ hours and gradually decrease with usage. * I am losing energy at the average of 9 to 10% per 30 to 40 minutes. This is happening while I am only using PAGES. This is really making me angry. The whole reason for buying a MB was to be able to have longer battery life so I can do my research work without having to connect to power cord for a longer duration, especially in a situation where you have to be mobile & away from power sockets. Any help would be welcome. Should I try reseting the SMC?