title_body: Storing drones during the winter Up here in Canada, it can get kinda cold during the winter. And just because of where I tend to use my drone, it can be easier for me to store it in an outdoor (dry, but unheated) shelter than to haul it back to the house all the time.
  
  Is it okay for drones (Eachine E520S) to stay outside at like -30°C, or should I continually bring it inside?  My guess is that it's the batteries that will suffer the most, so should I just bring them in? (lithium-ion batteries)
upvoted_answer: I can't speak for your specific drone, but I have experience with electronics and cold weather.
  
  I would definitely store the batteries in the warm, and check the manufacturer's guidelines for the correct storage voltage (for a LiPo I think this is about 30% to 40% charge, or 3.85 volts per cell) It also doesn't hurt to store them in a fireproof container for extra safety.
  
  The main hazard I've found when storing and operating electronics in freezing conditions is the risk of freeze-thaw cycles when the temperature is hovering around 0°C. Once it is cold, it's generally OK.
  
  Additionally, if you do decide to use the aircraft during the winter take care when moving it from a cold, dry environment into a warm one - condensation will form and can cause damage or corrosion. Let it warm up thoroughly before use - if possible, seal it into a watertight bag or box before bringing it in to preserve the dry air around the drone, and wait for it to warm up before opening to minimise condensation.