Do you run into problems with lack of run time with the 2 Cell? On high their website says it's only rated for 1 1/2 hour. It seems like the 4 cell is worth the extra $30. Or is it?
I have a older 4 cell, a newer 2 cell and can get hours out of the 2 cell at 900 lumen or what ever the Duo is on it,s lowest setting .
I have used the helmet light for night builds and such , and it,s been on for hours with no issues.
When riding I use one light on my bars and turn the helmet light off , when descending or techy trails it,s full lumens on all , then back to one on the way up .
If the moon is out I twilight on the FSR,s and more open sections .
Years back in the BLT days I learned to conserve my battery,s life , sucks losing your lights half way into a ride .
Hell even today I still ride with the odd guy that runs out of battery life for some reason or another.