Branch's Alum Battery

[HeavensPavement]

Thanks Branch for starting a thread on your journey with this.
As I wait for a couple of things I can only watch and read.
You posting this can only help others, the good the bad the ugly...
Watching and reading..
HeavensPavement

[kaliji]

what is SO4 my google search give to differents???

[Branch Gordon]

It's actually H2SO4....sulfuric acid.