Originally Posted by
mc_burn
The owner's manual does not specify.
thanks
Then don't do it. I had (actually still have) that light and must have bought it 12 years ago and it's still going. Sometimes it sits half charged for a year; sometimes it gets charged only after on night's ride; other times I ran it down to empty without noticing.
So, don't worry about the light. Discharging fully does more harm then good. Just use it as it was intended, charge it when it gets near empty and have fun.