This part of IEC 60086 is applicable to primary batteries based on standardized electrochemical systems. It specifies the physical dimensions, and the discharge test conditions and discharge performance requirements. The major technical changes are the addition of a \'digital still camera test\' for the LR6 battery, the reduction, for selected no letter batteries, from three grades (S, C and P) to two grades (S and P) with appropriate adjustments to MAD values, the deletion of the 3,6 ohm pulse test for the R03 battery, and the addition of new constant current hearing aid tests (standard and high drain) for the PR41, PR44, PR48 and PR70 batteries.