Here is a good series of blogposts about the protocol: https://hclxing.wordpress.com/2014/02/06/hacking-the-dell-laptop-power-adapter/ https://hclxing.wordpres

Here is a good series of blogposts about the protocol: https://hclxing.wordpress.com/2014/02/06/hacking-the-dell-laptop-power-adapter/ https://hclxing.wordpress.com/2014/02/06/hacking-the-dell-la... https://hclxing.wordpress.com/2014/02/09/hacking-the-dell-laptop-power-adapter-part-ii-2/ https://hclxing.wordpress.com/2014/02/09/hacking-the-dell-la... https://hclxing.wordpress.com/2014/02/09/hacking-a-dell-power-adapter-part-iii/ https://hclxing.wordpress.com/2014/02/09/hacking-a-dell-powe... https://hclxing.wordpress.com/2014/02/26/hacking-a-dell-power-adapter-final-not-really/ https://hclxing.wordpress.com/2014/02/26/hacking-a-dell-powe... An one more for the Apple Magsafe one: http://www.righto.com/2013/06/teardown-and-exploration-of-magsafe.html http://www.righto.com/2013/06/teardown-and-exploration-of-ma...