Because i have lots of old AA batteries with some residual energy (i guessed) lying arround, but my mp3 player needs AAA batteries, i made this adapter, to make use of the old AA cells.
The AA cells were used in an old compact camera. They do not work in the camera any more - thx to the crappy cam! - but with one of those AA cells i was able to power my mp3 player for about
Quite nice for a batterie which seemed to be empty. ;)
I think the images are self explaining.