Check your Anderson battery connectors

[EricH]

Had a good one at L.A. last weekend. Team comes to the field for their match, tries turning it on in queue... NOTHING. Reset the breaker. Same result. Match almost ready to start. They plug in a battery from their partners, and the lights go on--at which point, the field staff proceeded to help them get the new battery secured and get the robot onto the field.

I never did hear what the root cause was...