7.2.1 Purpose This test characterizes the capacity at different temperatures at three different constant current discharge rates. The different discharge rates shall be performed in a sequence before the ambient temperature is changed and the test shall be repeated after the new temperature is achieved. 7.2.2 Test procedure7.2.2.1 High-power battery pack and system The test shall be performed at three different temperatures (40 °C, 0 °C and −18 °C) with the discharge rates 1 C, 10 C and the maximum C rate as permitted by the supplier (the maximum C rate corresponds to Id,max). The test sequence shall be performed as specified in Table 3.