I'm planning to replace my iPad's battery and I've checked several online shops to compare prices. I found one though and they offer a good deal with a discount. I also check similar parts from our local store but they are a bit expensive compared to the ones I saw online. I wonder if it's a good idea to purchase the one online since it's cheaper but I'm thinking what if I received a defective one? Or just buy it from the local store, although it's quite expensive at least if ever it's a defective one, I can easily bring it back to the shop for replacement. What do you think?