any battery store could sell you gallons of sulfuric acid making it is
tricky and not worth the hassel when it is so cheap.
lead is easy to work with and i think you need pure lead not lead alloys like in wheel weights and solder.
i saw a youtube vid of a guy who made his own led cell and if i remember right
the trick was slow repeated charges to build up the compound that is on the plates.
modern battery plates are made porous to give better cranking amps but im not sure if that improves the amp hours.from my understanding the charge on the plates is all stored in the lead compound that forms on the plates.
i have been wanting to try this myself and though about using old glass
bottles but if i ever find those old glass cases i will definitly try to rebuild them.
What others are reading
For films about individuals and technologies for living off the grid X