Comment by serf
it's a cool idea for small setups, but very expensive per kwh.
if you want the same kind of style diy-er box-for-batteries I suggest the Trampa offerings. Similar focus on safety and novice level DIYer capability but much larger capacities and arrangements.
Very nice battery boxes! Our product is expected to go down in price as we increase the production.
Our product also comes with a high-end connected Battery Management System (the "brain" of the battery), and with a sturdy and fire-resistant aluminum casing!