How often do automatic chicken coop door batteries need replacing?

❓ How often do automatic chicken coop door batteries need replacing?

✅ Direct Answer: Expect more than 6 months from a set of quality alkaline batteries, with a flashing red light as the low-battery warning. Avoid rechargeable cells in cold weather: voltage sag at low temperature is the most common reason a door stops closing in winter.

📖 Details: A set of quality alkaline batteries normally runs more than six months, and a flashing red light is the low-battery signal. Rechargeable cells are the usual cause of winter failures: their voltage sags in the cold, the controller reads it as a flat battery and the door stops short of closing.

📋 Buying note: Recommend alkaline cells to end customers and advise a battery change at the start and end of winter. Two scheduled changes a year cost less than one service call.