Leads of solar panel inside book
A similar 1/4 inch hole is drilled in the back of the talking photo album, in the same place where there is already a 1/2 inch hole in the black plastic. The two wire leads from the solar recharger are then passed through this hole so they can be connected to the battery compartment of the book. The solar recharger is then glued to the back of the talking photo album with super glue.