You can't hand-wave it as "pricing in externalities". What disposal method should be priced in? In theory, disposal could add $0.05 to the price of a battery,

You can't hand-wave it as "pricing in externalities". What disposal method should be priced in? In theory, disposal could add $0.05 to the price of a battery, by making drive to the official Battery Fire, tossing it in, and driving back, all the way to making it cost $50000 whereby someone will drive to your house to get the battery, and then over the course of the next 6 months lovingly disassemble it to remove each component and chemical without producing any waste, or anything in between. What do?