TheMosfet system is designed for electric weapons. Itworks with NiMH batteries in the range of 8.4-12V and with Lipo batteries in the range of 7.4V and 11.1V . Cables up to 1.5 mm can be used. The Mosfet is ready for use with M170 type springs and guns with a maximum range of 25 pellets per second. Theactive brake causes the motor to stop as soon as the trigger is released, preventing partial movement of the piston and the piston stops in the forward position.