Not at all diminishing the significance of this article and the apparent abuses related to cobalt mining, but just wanted to point out that lithium batteries like Battleborn that have been installed by some users into their trailers are LiFePO4 (lithium iron phosphate) chemistry. They do not use cobalt.
The batteries they are referring to in the article are battery types like lithium cobalt oxide, LiCoO2, which certainly are common in our cell phones, tablets, laptops, cameras, etc. or Lithium Nickel Cobalt Aluminum Oxide(LiNiCoAlO2), among other chemistries, used in medical devices, electric vehicles, etc.
My point is that they are not all created equal and we shouldn't paint all lithium batteries with a broad brush.