15" Macbook Pro (2015). More than enough battery life for an hour commute and a meeting once I get to work. if I need to conserve battery life, turning down the

15" Macbook Pro (2015). More than enough battery life for an hour commute and a meeting once I get to work. if I need to conserve battery life, turning down the screen brightness makes a big difference. I try to have everything I need already downloaded to the laptop, but when I need internet, I tether to my phone. I carry everything in an REI Novara commuter pannier, which a great commuter bag for a bike -- two simple clips hold it securely on the bike rear rack so it's easy to unclip from the bike when I park at the station (and to clip back on for my commute home), and it has a built-in shoulder strap and a rain cover in its own pocket. Sadly, it's been discontinued, not sure what I'll replace it with when it finally wears out. https://www.rei.com/product/780448/novara-commuter-single-pannier https://www.rei.com/product/780448/novara-commuter-single-pa...