well this is the case.
Originally Posted by dodnet
turning off the radios will allow you to extend your battery life.
it is the same with your cell phone (smart phone to be exact) with all the radios available- wifi, 3g, 4g, bluetooth, gps, for obvious reasons, leaving all of them on will drain your battery.
the best method is to turn them off if you no longer need to use them. though the radio needed to make phone calls cannot be toggled unless you turn off the phone or go into "air plane mode". by leaving this radio on itll use up the battery, and if there is no antenna in range itll use up more because the frequency which the radio will ping for a cell phone tower to get a response.