Battery life questions (new MacBook Air)

[MacGeekAZ]

I just got my MacBook Air last week, and I love it! (It's a refurbished 2013 13" 512GB, i7, 8GB RAM.)

I notice that some days the battery shows over 12 hours at 100% and drains super slowly. Other days it shows 8-9 hours at 100% and drains faster. I use it to surf the web, play brief casual games, etc. I do turn the brightness down a bit to save battery. Any ideas why it varies so much? I do the same type things every day.

Does this seem normal?

Thanks!

 

[DiCaprioAngel]

I'd say it's pretty normal. Battery usage varies depending on what you're doing sometimes, especially if you play games, watch videos/movies, etc. My rMBP fluctuates depending on what I'm using it from one day to the next. I do similar tasks every day, but other days it lasts longer while on some it tends to drain faster (especially if I watch Netflix).