It’s very easy to do a battery swap and then continue your mission. Just bring the drone home when the battery gets low, swap in the new battery, and then restart your plan from the point where you left off.
For step-by-step guides:
Mapping Large Areas with DJI
How do I conduct a multi-battery flight in DroneDeploy in order to map a bigger area than a single battery can handle?
Updated
Have more questions? Submit a request