Batteries from Amazon . 123 batteries are great for extrema cold. They are disposable Streamlight 85177 CR123A Lithium Batteries, 12-Pack a.co/d/hUthnZQ
Link to a good charger XTAR VC2SL Type C 18650 Battery Charger Universal Intelligent LCD Display 21700 Charger with USB Output for Rechargeable Batteries Li-ion 18650 21700 18350 16340 14500 Ni-MH/Ni-Cd A AA AAA a.co/d/fmHirxW
Here is a trusted site to get chargers and batteries from. Here is the link to a good protected 18650 www.18650batterystore.com/products/epoch-18650-3500mah-10a-protected-button-top-battery
Batteries from Amazon . 123 batteries are great for extrema cold. They are disposable
Streamlight 85177 CR123A Lithium Batteries, 12-Pack a.co/d/hUthnZQ
Link to a good charger
XTAR VC2SL Type C 18650 Battery Charger Universal Intelligent LCD Display 21700 Charger with USB Output for Rechargeable Batteries Li-ion 18650 21700 18350 16340 14500 Ni-MH/Ni-Cd A AA AAA a.co/d/fmHirxW
Here is a trusted site to get chargers and batteries from. Here is the link to a good protected 18650 www.18650batterystore.com/products/epoch-18650-3500mah-10a-protected-button-top-battery
Best price I found to get disposable 123 batteries.
www.batteryjunction.com/tpen-tcr123a-.html?TITANIUM-CR123A-HERO&Template