This comment is more in line with what I'd expect, and in response I would imagine that well-managed battery systems probably are pretty low in carbon and other

This comment is more in line with what I'd expect, and in response I would imagine that well-managed battery systems probably are pretty low in carbon and other pollution outputs as long as they can be recycled, or based on the amount of life that they can have in them. Regardless, I can't imagine that a renewable energy + battery system is capable of doing anywhere near the environmental damage of most carbon-based systems.