I purchased two of these to power a mapping hexacopter.
I expected decent results and was hugely dissapointed to say the least. These expensive batteries only yielded 50% of their capacity while test hovering under full mapping configuration before dropping below 3.5V per cell. Two were running in parallel and thus were only being asked to run at less than 3C. They were not even getting warm. Venom have told me that I am not pushing the batteries hard enough to make them warm enough to work at an optimal temp. But when I ran one battery it lasted barely 4 minutes. Not really sure what to make of that advice!
Venom to their credit have agreed after many emails to take these back but do not seem to be impressed with my efforts. Has anyone had any similar experiences? A pair of Tattu 4S 5200mah batteries performed much better and are literally less than half the size and weight! I do not understand what multirotor application these could ever work.