[Al Skierkiewicz]

Marc,
It is likely that someone visited you because the tracking logs showed you undervolt. The terminals on the main breaker and the PD are hard metal compared to the soft material used for the battery terminals and they don't get handled as much. The lock washer between the battery terminal an the wire terminals keep the terminals from twisting and loosening the hardware. Both the PD and the main breaker have substantial hardware with lock washers. Most often these wires are also tied into the robot so that they cannot move and twist unlike the battery. Any loose connection in the primary wiring (All the #6 AWG) will cause significant voltage loss under the current demands of our typical robot. These losses are what shows as melted SB50 plugs and wiring and to a much lesser degree, tripped main breakers.