I think that the 5800mAh UltroFirc 18650 battery belongs into the category “other names of shame” (several similar names are already listed). This cell was also enthusiastically discussed on reddit two years ago.
Ultro Firc have even managed to increase the capacity of their battery to 6800mAh since then.
Another listing that I checked has been replaced with one for Ever Fire 18650s (9900mAh).
