I'm looking for a replacement battery for my friend's macbook and I'm kinda at crossroads as to whether buying an aftermarket battery (such as the ones offered in OWC, NuPower $100) would be a feasible option instead of opting to buy an Apple OEM battery or getting a sketchy deal off Ebay/Amazon. I'm fully aware of the fact of bootleg battery ripoffs sadly circulating nowadays which lead me to OWC as a tangible alternative. They offer my battery exactly for my friend's macbook early 2011 model along with the 1yr warranty which I think is a great deal however, I'm still a bit hesitant if these batteries can be trusted without solid good testimonial (excluding the ones on their site). I'm not a novice and I quite familiar with taking apart my own Macbook and I don't feel like forking another $50-100 for an "Apple" guy to do something I can do as easily by myself. I've read a couple forums and posts with scant replies and very one-sided answers. At first glance, OWC seems pretty legit and there have been some positive reviews surfacing on the web. I'd like to know what your guys thoughts or if you like to share me any of your experiences with buying aftermarket batteries and what should my expectations be if I were to buy an aftermarket battery. Truth be told, my Friend does not have Apple Warranty on his macbook and therefore, I don't feel I would be in the position of soliciting for a discount of any kind if I go to the Apple Store. Like I said before, it distresses me to pay someone to do something I can do by myself.