Here my video that shows a Bedini's free energy generator running with 9V / 240 mAh battery. This generator is charging a 9V / 240 mAh battery.
This generator has 99 % efficiency. The motor was running on 22 millamps at 4000 rpm. Please remember that the rotor has a large amount of energy stored in it at this speed and so is potentially very dangerous. If the rotor breaks or a magnet comes off it, that stored energy will produce a highly dangerous projectile. The complete electronic circuit and the coil (rotor) details are shown in the websites: