Th battery in my MacBook Pro (mid 2010 model) became swollen. I took it to the Apple Store and the removed the battery and suggested I go to a third party to get a replacement battery (and possibly a new power adapter as the one I currently have heats up and is hot to the touch). From what I’m reading here it seems as if I can do the repair myself and potentially save a lot of money. Is that right? Also what should I expect to pay for a replacement battery and power adapter?