A quality D battery has eight times the capacity (milliamp hours) of a comparable AA battery. This allows the six D batteries in the Cuddeback Power Bank to have up to four times the power of the eight AA batteries in the camera. More power enables the camera to run longer and take higher quality night images. This is critical in subfreezing temperatures.
CuddePower can operate a camera with or without batteries installed in the camera. The camera will draw power from the CuddePower first, saving the eight AA batteries for reserve when the D batteries fail.
CuddePower attaches to the tree with an included metal Genius Mount. Compatible Cuddeback cameras slide on and off the built-in Genius Mount of the CuddePower.