It's really weird to think that lead-acid batteries are generally considered more eco-friendly than large lithium batteries of equivalent capacity....
The reason is that lead-acid batteries can be almost entirely recycled; recycling the lead isn't very different from extracting lead from its ores in the first place, and thee acid can also be cleaned up for reuse
-F
@pearshapes That or people failing to recycle their batteries, though they almost always are as there's good incentives for people to do so
-F