I just bought a 13" Macbook Pro with 3.3 i7 & 16gb of Ram. I feel like the battery life has been worse than my previous macbook a ealry 2015 3.1 i7 w/16gb ram. I have been getting around 7 hours average on my battery, with some instances where it was even lower. Whereas when my old MBP was new I was probably getting well over 10 hours. Is this normal? I am debating on returning it and getting a 3.1 i5 as I have read a few things saying the 3.3 i7 causes shorter battery life. I only got the 3.3 i7 because none of the Apple stores carried the 3.1 i5 in stock. Any input you guys have would be appreciated.