Delivery UAVs must safely and securely deliver goods to their intended recipients wherever they are located. The longer the range and ability to handle heavier and larger loads, the more productive these UAVs can be. Because they can operate in congested and complex areas, they must be absolutely safe. They need to incorporate redundancies on multiple layers to avoid harming people, damaging property, or losing their valuable cargo. That requires providing power to redundant systems like motors, GPS for navigation, vision systems, and other sensors for flight and flight termination.