With the threat of a US ban looming over Chinese drone ... (10.8 x 2.9 x 2 in), and its electric propulsion system can zip it to a top speed of 45 mph (over 72 km/h) while its hotswap battery ...

BEIJING -- A drone powered by an ultra-low-temperature high-energy-density lithium battery, developed by Chinese researchers, has successfully completed a flight test in China's northernmost city ...