ANNEX IV

REGULATION (EU) 2023/1542 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 12 July 2023 concerning batteries and waste batteries, amending Directive 2008/98/EC and Regulation (EU) 2019/1020 and repealing Directive 2006/66/EC (Text with EEA relevance) · European Union

ELECTROCHEMICAL PERFORMANCE AND DURABILITY REQUIREMENTS FOR LMT BATTERIES, INDUSTRIAL BATTERIES WITH A CAPACITY GREATER THAN 2 KWH AND ELECTRIC VEHICLE BATTERIES For the purposes of this Annex the following definitions apply: ‘Rated capacity’ means the total number of ampere-hours (Ah) that can be withdrawn from a fully charged battery under reference conditions. ‘Capacity fade’ means the decrease over time and upon usage in the amount of charge that a battery can deliver at the rated voltage, with respect to the original rated capacity. ‘Power’ means the amount of energy that a battery is capable of providing over a given period under reference conditions. ‘Power fade’ means the decrease over time and upon usage in the amount of power that a battery can deliver at the rated voltage. ‘Internal resistance’ means the opposition to the flow of current within a cell or a battery under reference conditions, that is, the sum of electronic resistance and ionic resistance to the contribution to total effective resistance including inductive/capacitive properties. ‘Energy round trip efficiency’ means the ratio of the net energy delivered by a battery during a discharge test to the total energy required to restore the initial state of charge by a standard charge. Part A Parameters related to electrochemical performance and durability 1. Rated capacity (in Ah) and capacity fade (in %). 2. Power (in W) and power fade (in %). 3. Internal resistance (in Ω) and internal resistance increase (in %). 4. Where applicable, energy round trip efficiency and its fade (in %). 5. The expected life-time of the battery under the reference conditions for which it has been designed, in terms of cycles, except for non-cycle applications, and calendar years. Part B Elements to explain the measurements for parameters listed in Part A 1. Applied discharge rate and charge rate. 2. Ratio between nominal battery power (W) and battery energy (Wh). 3. Depth of discharge in the cycle-life test. 4. Power capability at 80 % and 20 % state of charge. 5. Any calculations performed with the measured parameters, if applicable.

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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.