Tutorial: 3s vs. 4s For New Quadcopter Pilot - DON'T WASTE YOUR MONEY

Should a new quadcopter pilot choose 3S battery or 4S battery? Most people would say 3S is safer. The problem is that the pilot often out-grows the 3S battery before the 3S battery is used up, and then the money spent is wasted.
I'm going to show you how to modify your transmitter to allow you to fly 4S safely even as a beginner, so that you can ramp up the power as your abilities increase.
Of course, I'm using my beloved Taranis, but there is probably some way for you to duplicate this on whatever transmitter you're using, as long as it is programmable.