Which is the part I don’t really understand. Aren’t these batteries pretty much all watercooled? Maybe the control electronics got wet causing it to keep the battery on in a flooded condition and thus draining them completely? Maybe just the moisture senser tripped, causing them to say, yeah, water damage, gotta replace it?
If you build it tall enough, centrifugal force will start pulling on it. Building it that way though… But yeah. Doubt the right material exist atm.