[mschuster91]

Now here's some piece of legislation that could e.g. be made part of "right to repair" bills:

When a product with batteries gets EOL'd and uses non-standard (e.g. AA/AAA, CRxxxx coin cells, 18650 Li-Ion) cells and/or proprietary controller chips, the specifications (mechanical, electrical and EC firmware source) must be made public.

To ensure that this gets followed and e.g. devices from insolvent manufacturers don't end up without reasonable possibility of new batteries, any manufacturer / importer of any device into the country must deposit said information at a public library/archive, similar to FCC/CE certification records.