Hi! I have an Macbook Pro a1278 late 2011 edition laptop where the battery has svollen up. Therefore I need to replace it. My question is, the batteries are in a range of prices all stating that they are 10.8V 4400mAh, is there a good reason not to choose the cheapest option? I'm currently looking at amazon uk and found from 16£ up to 60£. The 16£ one only has 2 ratings, and allthough they give good marks I want some more customer reviews. I got the macbook for free as it was brooken and have replaced the hdd and glass, now its only the battery left. So I don't want to spend a lot on the battery as long as it works. Please let me know if you had any experience with this or any other tips. Cheers!