SUNLU ABS 3D Printer Filament 1.75mm 1KG Color:WHITE You can simply use cheap

You can simply use cheap off-the-shelf 18650 batteries and the electronics are so reliable that in an emergency you can empty the Li-Ion batteries way below the recommended voltage without any impact on the FPV video feed and radio control link

RockSteady

It provides ultra-low latency with incredible bandwidth (3x faster

Control distance: > 2km @ 20dBm

Double PCB board design

SUNLU ABS 3D Printer Filament 1.75mm 1KG Color:WHITE You can simply use cheapSUNLU ABS 3D Printer Filament 1. 75mm 1KG Specification Diameter: 1. 75mm Tolerance: 0. 03mm Print Temp.: 250 260 Print speed: 40 60mm s Platform Temp.: 80 100 Bubble: 100% no bubble Tension(kgf): 6 11 Melt Mass Flow Rate: 12 19g 10min (220,10kg) Breaking elongation: 25% N. W.: 1 KG roll G. W.: 1. 3 KG roll Length: 1. 75mm(1KG)=395m