Have a look at this power adapter provided by Hardkernel for ODROID XU4,
hardkernel.com/main/products ... 7454915964.
One can use the same, if powering up the ODROID-XU4 inside lab.
However, if you want to mount ODROID-XU4 on the drone using LiPO for the same cause :
As the input power requirement of ODROID-XU4 is 5V/4A. Your standard off-the shelf LiPO is fine, as long as you have a 12V-5V converter(power regulator/ DC-DC converter).