Bd does it again! - Black Diamond ReVolt 350 Headlamp

Has to be the best headlight I have owned or maybe 2nd . The rechargeable ability is basically what sold me and then spending 4 hours outside in 10°f and only being 1/3 bars dead(“66%” charge remained). I used to be obsessed with a rechargeable “job smart” head lamp that would barely last 3 hrs. I also bought a extra battery with the charger but I honestly don’t know if I need it !