Originally Posted by
Juha
Update: none of my current 5-6 rechargeable NiMH AA-pairs give me anything close to 2hrs of burn time (turbo mode). Recharging them right before use seems to be a must. I now have a couple of hybrid NiMHs as backup, as they don't discharge so quickly. I can have them in the bag for days and still be confident they'll last all the way home.
--J
What are your current batteries? Have you changed them since your OP? I use Sanyo 2700, and during the few days it was cold this winter I got well over 2 hours of run time.