Quote: (Originally Posted by
Skipbreather)

The 50 hour life is for the SECONDARY. The primary was advertised at 25 hours. Both per the 5 AA cell pack. Sounds like your pack gave it up right on schedule.
2 x C lithium will fix all that

Ah... 25 hours makes more sense.
Should it die off like that from 6 volts though?
Do you have the details for the Lith C's?