FPVs fly a few KM before getting to a target, so the battery will be low by the time they get to the part worth recording. There's no need for a return trip si

FPVs fly a few KM before getting to a target, so the battery will be low by the time they get to the part worth recording. There's no need for a return trip since it either finds a target or is intentionally ditched. Also they use li-ion cells which can be run to a lower voltage than a lipo, which is normally what the flight controllers are configured for out of the box.