When taking pictures with a digital camera, the response is particularly slow because it is too cold. How can we avoid it?

This problem is very common, mainly because the battery temperature drops and the power supply is insufficient. It is recommended to put it in a camera bag with heat insulation function when not in use, and then take it out when it is used. Generally, taking pictures for a few minutes has no obvious effect. Of course, the outdoor temperature can't be lower than 0 degrees Celsius, so the camera is difficult to use.