My parent's 2008 MacBook is doing very well, especially since I installed the SSD. However, the battery is reporting that it needs to be replaced and can barely hold a charge. I know it's a simple process to replace the battery, and I don't want them to pay for the labour costs from Apple. Does anyone know where I can buy a 2008 MacBook Pro battery? Not sure if it's a factor for shipping, but we live in Canada. Thanks!