The present application provides a battery pack and a power consuming device powered by the battery pack. The battery pack includes a battery pack cavity and a plurality of battery cells received in the battery pack cavity. An interior space of the battery pack cavity can be divided into a first region with a temperature change rate of K1 and a second region with a temperature change rate of K2, where 0.066≤K1≤0.131 and 0.034≤K2≤0.066, K1 and K2 being expressed in ° C./min. The plurality of battery cells include at least one first battery cell arranged in the first region, and at least one second battery cell arranged in the second region. The battery pack of the present application can reduce or avoid the cask effect at low temperature and improve the energy retention rate at low temperature.