A remote pilot in Minnesota is conducting real estate shoots in January at 18°F. Their LiPo batteries are rated for 26-minute flight time and are fully charged. A planned shoot requires approximately 22 minutes of flight. How should the pilot manage this operation?

Why →LiPo batteries experience significant capacity reduction in cold temperatures, typically 20–40% loss near or below freezing. At 18°F, a 26-minute rated battery may deliver only 15–20 minutes of actual flight time. Cold batteries also show elevated internal resistance, producing rapid voltage sag under load. Best practice: warm batteries to at least 50–60°F before flight and plan conservatively, assuming 60–70% of rated capacity in extreme cold.

The trap →Rated flight time assumes batteries at nominal temperature, typically 68–77°F. Cold-induced voltage sag is one of the primary causes of unexpected return-to-home triggers and mid-flight power failures in winter operations.

Field note →Keep spare batteries in an insulated bag against your body until needed. In cold weather, start each flight with warm batteries and land earlier than you think necessary. LiPo voltage sag accelerates rapidly in the last 20–30% of charge. Raise your low-battery warning threshold when flying below freezing.