introduction and background: Ok so hello, this is my first time on the website/forum and I wanted to ask a question regarding the macbook chargers. Mine has yet again broken, this time its the actual power brick but the cords are ok. I do not want to shell out another $80.00 for a charger and there are cheap generic brands but I want to avoid those as well. this is a early 2011 13" macbook. My actual question: If I just used an old HP/Toshiba brand charger that has a rating of 65w, input of the regular 100-240v, and an output of 19.5v and just unsolder the the L style cord from the apple power brick and soldered it to the toshiba/hp laptop, would I have any problems with compatible or even too much or not power enough going to the laptop? I've tried researching this, but it doesn't seem anyone else has ever had the idea just to use an old laptop charger from a previous laptop. the apple chargers are also rated as a 60w with the only difference being an output of 16v instead of the 19.5v. I myself don't know much about the inner workings of these things, but can rewire something with ease. any information you might have, Please post here.