I have seen other posts in the past about this, but I can't seem to find them. I have a Galaxy Tab s2 That works pretty well but seem to charge off of the controller which is bad...its my understanding that the Ipad mini 4 doesn't do this allowing the controller to last longer...Is this true? I just ordered a Ipad 4 mini and I am not an "i" person at all but read how much better they work with the mavic. Any downside to them?