I was playing on Sunday at Temple in the rain and my revy's stopped working.
It span continuously during the last game and then just died.
The red light comes on but nothing else happens.
One of the guys on my team had the exact same problem (on the exact same day, and the exact same site). We figured that some water must have gotten into the internals and started shorting stuff out. Try opening up your revvy and leave it to dry for a few days. Stick in some new batteries and see what happens.