[lucb1e]

The entire datacenter from one 3500mAh 5V battery? That sounds like a book rather than real life.

There's a reason people charging quadcopter's lipo batteries are told to watch them while charging, not abandon them.

[BuildTheRobots]

It's not that they'd loose the data centre, but VESDA environmental monitoring units are surprisingly sensitive so you could easily end up with the fire suppression system firing.

At best you've then got a >$10k invoice to refill and reset the system. More likely you've got damage to servers, people and/or the building as well as massive amounts of disruption to deal with.