Originally Posted by CommuterRun
This is what I've noticed using NiMH rechargeables in my headlights. When the light gets noticably dimmer, in the time it takes me to pull over, stop, and dig my spare headlight out, the first one is completely dead. It happens that fast.
This is actually a good thing about NiMH; the cells are giving you full voltage up to the very end of charge unlike other batteries which experience voltage fade throughout the cycle. Alkaline AA's produce about half their charge
below 1.2V! That's one reason I change out my taillight batteries on a regular bases and recycle them into a remote control, utility light, etc. for the remainer of the batteries power.
Nevertheless, I don't like the idea of throwing away primary cells like I've been doing with the taillight; this discussion has inspired me to use one of my lithium 18650's with my LD1000.
Anyone running 3.7V successfully with the LD1000?