There has been a great deal of discussion regarding the use of UAV's for SAR and Emergency operations. I'm involved in creating an SOP (standard operating procedure) for a regional USAR Task Force (Urban Search and Rescue) regarding the use of UAV during emergency operations. My question is, so I'm not reinventing the wheel, does anyone have a battery charge schedule or any plan that allows for a UAV to have charged "ready to fly" power source to allow us to fly the UAV in short order "off the truck"? I have always followed the DJI recommendation of storing my inspire batteries at 50% and charging them up before use. This process works great for planned flights, however most emergencies are not planned (I guess that's why they call them emergencies). Waiting for batteries to charge up on scene cuts drastically into the effectiveness of a UAV in a timely manner. Do we just need to wait for battery technology to catch up or is there a solution I'm just not aware of? Thanks in advance for any input.