I like to listen to music when I am out walking, but on multi-day trips, I sometimes go for up to a week without encountering an electrical outlet. Previously, I carried 5 spare batteries for my mobile phone, and even this mean't I had to greatly ration my music.
Now, I have an Android phone and I am lucky if it last 3 hours when listening to music (not good if I am walking 12 hours+ a day). I wouldn't mind buying a light MP3 player, so can anyone recommend one that will run for long periods on a battery? Or perhaps, another solution?