To provide a cold storage apparatus of a cold insulation chamber capable of the reduction of the cost required for a charger and of making the weight of the cold insulation chamber light weight.

A charger 25 provided on the side of the cold storage apparatus 20 is connected with a battery 13a of the cold insulation chamber 10 through a charging cable 26, whereby the battery 13a of the cold insulation chamber 10 is charged with electricity. Accordingly, even if a plurality of the cold insulation chambers 10 are provided, the battery 13a of each cold insulation chamber 10 can be charged with electricity by making use of the one charger 25. Thus, there is no need of mounting the charger on the side of the cold insulation chamber 10, and the cost of the cold insulation chamber 10 can be correspondingly reduced together with assurance of making the weight of the cold insulation chamber 10 light.