PREMIUM QUALITY REPLACEMENT NOTEBOOK BATTERY: Bring your laptop back to life with Ninjabatt's high quality laptop battery - Made of high quality materials, top grade battery cells and packed with safety features. BEFORE PLACING AN ORDER: Please identify the model and year of your Mac and make sure they are listed on the title. The easiest way is to do that is to go to About This Mac, available on the Apple menu in the upper-left corner of your screen.