Hackaday Battery Backup Conceals a Pentesting Pi Hackaday Noticing the battery bay in a cheap Cyberpower 350VA battery backup was just about the same size as the Raspberry Pi , he decided to convert it into a covert penetration testing device. Of course the illusion isn't perfect as the battery backup function …

Here is the original post:
Battery Backup Conceals a Pentesting Pi – Hackaday