Drones in Ukraine have the same problem cell phones do in cold winter weather, giving pilots less time to hunt

• Frigid winter conditions are affecting drone batteries in Ukraine like they do cell phones and some other electronics.
• It means drones can't spend as long in the air, a drone commander and an expert told BI.
• It's an issue for both Russia and Ukraine, but it's a bit worse for Ukraine as it relies more on cheaper drones. 

Drone warfare has become a key part of the conflict in Ukraine, with both sides using the equipment to track each others' movements, direct troops and artillery, and attack enemy soldiers and weaponry.