Perhaps lead is not so environmentally friendly? Here [1] are some of the reasons li-ion is currently preferred. This will change with time. I am holding out

Perhaps lead is not so environmentally friendly? Here [1] are some of the reasons li-ion is currently preferred. This will change with time. I am holding out for the 3D printed solid state batteries which are not mentioned on that page but soon to be in mass production. [1] - https://news.energysage.com/lithium-ion-vs-lead-acid-batteries/ https://news.energysage.com/lithium-ion-vs-lead-acid-batteri...