ANNEX III

ELECTROCHEMICAL PERFORMANCE AND DURABILITY PARAMETERS FOR PORTABLE BATTERIES OF GENERAL USE Part A Parameters for non-rechargeable batteries 1. Minimum average duration: minimum average time reached by a sample of batteries on discharge when used under specific conditions, such as temperature and relative humidity. 2. Delayed discharge performance: the relative decrease of the minimum average duration, with the initially measured minimum average duration as the reference point, after a defined period and under specific conditions, such as temperature and relative humidity. 3. Resistance to leakage: resistance to unplanned escape of electrolyte, gas or other material. Part B Parameters for rechargeable batteries 1. Rated capacity: the capacity value of a battery, under specific conditions, such as temperature and relative humidity, and declared by the manufacturer. 2. Charge (capacity) ( 7 ) retention: the capacity that a battery can deliver after storage, under specific conditions, such as temperature and relative humidity, for a specific time, without a subsequent recharge and expressed as a percentage of the rated capacity. 3. Charge (capacity) recovery: the capacity that a battery can deliver with a subsequent recharge after storage, under specific conditions, such as temperature and relative humidity, for a specific time and expressed as percentage of the rated capacity. 4. Endurance in cycles the number of charge and discharge cycles a battery can perform under specific conditions, such as temperature and relative humidity, before the capacity drops below a specified fraction of the rated capacity. 5. Resistance to leakage: resistance to unplanned escape of electrolyte, gas or other material.

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Source: EUR-Lex (Cellar) · retrieved 2026-09-29 · Text as consolidated on 2026-08-13; changes after this date are not shown.