You need external battery pack for macbookpro
It is kind of hard to stay off of my mac book pro, the thing is like a dream come true to a bloggers. It can really suck some battery voltage up in a short time if you open it. That is why the external battery pack for macbookpro
is so great. With the battery pack I can stay on the my macbookpro all night. Also if you have a mac and the battery goes dead dont try to fix lithium ion battery just use the external battery pack for macbookpro.