what battery ?
the way these things work is there is a known production capacity for things and you can buy that capacity before the thing is produced
so for example due to AI boom, manufacturing capacity for memory chips is already sold out for the entire next year
you can obviously do the same for electricity
because power plants like chip manufacturing plants have a known fixed capacity
let's say i buy 1 terawatt hours of capacity then somebody wants to run an AI data center but i own the power - they have to then buy it from me unless they build their own power plant which will take 10 years to build
this is the most real kind of money because society can exist without bitcoin, without gold, without dollars - but it can't exist without electricity