Put zorin on my laptop, laptop has an nvidia 555m and i7 cpu. Battery life is about 1 hour at full charge so I'm guessing the gpu is like on/something and taking all the energy because its optimus and stuff, because I had over 3 hours of battery life at full charge when I had windows on this laptop. I've heard stuff about bumblebee but not sure if that would work or not for me. Should I just disable the gpu and run off of the igp, since I don't need more than what it can do what with this laptop being mainly a youtube/cs homework on the go box, or give bumblebee a try?