E7.2 The discharged cells are subje

E7.2 The discharged cells are subjected to a forced discharge at a constant current 1.0 It A for 90 min with the discharge voltage limit not to exceed the numerical value of the upper limit charging voltage specified for the cell. If the discharge voltage limit is reached before the 90 min, the cell is to be discharged at a constant voltage discharge equal to the manufacturer’s determined low voltage cutoff, with the current decreasing as necessary until the 90 min time period is reached.