Hey! I've been a long time reader of this forum, only skimming the best advice for years. This time I have a problem, I did'nt find an answer to right away. The battery on my Mac is dying, and it keeps refusing to get charged. I have now managed to get it charged to about 80%, which should last me about 40 - 50 min. I am going to buy an external hd today, to transfer my picture library, and my master thesis. What is the quickest way to do this? Do need to format The new ext. hd? (Do not have time for that). Which hd's does not need formating? Writing this akwardly on my ipad.