This is an open source project on making the Bedini Battery Energizer Available to everyone. This is a device that uses 1 battery to charge several batteries.Lead acid type, but could possibly Recharge Aluminum air Batteries. Plese contribute and improve on this design. Upload this project to other sites.-READ THE INSTRUCTIONS.PDF BEFORE ASSEMBLY- The Rotor uses a 608 style skate bearing 22 x 7 x 8 mm  The shaft for the rotor needs to be 8mm, you can use a 8mm hex bolt