Hi there, I hope this is the right place to post my question. If not I apologise. I bought this MBP last year and I was very happy with it and I still am. I can get about 4-5hours out of my battery when I'm programming/compiling or doing other intensive forms of uni work. I have a spare SSD that I'm not using at the moment from a desktop. I have looked online as to how to replace the optical drive with a SSD. I am aiming for longer battery life and sure the boost in performance would be cool too. Would this improve my battery life if I disabled the mechanical hard drive and only used the SSD, or swapped between them? It's a 128GB 2011 model corsair. If it does by how much roughly would one suspect? Couldn't really find an answer online. Much appreciated!