Wind turbine project construction

Ok couple of problems. Yes youtube video told the truth. During test,
bike wheel does blow with no fins. But to generate the volts, trigger
needs to be engaged, and the head needs to spin, not just the wheel.
Have to lock the axle of bike wheel somehow so it spins the whole drill
head. My test results were 1.5v to 2.5v just hand spinning. But if I can
lock the axle and have wind we can make enough volts to charge batteries
for montello.