Guide

The battery carbon footprint declaration explained

The carbon footprint declaration states a battery’s life-cycle greenhouse-gas emissions per kWh of energy delivered, calculated to the EU methodology and surfaced in the passport, with performance classes phased in over time.

Last updated 1 June 2026

The EU Battery Regulation requires a carbon footprint declaration for EV, LMT and rechargeable industrial batteries. It expresses the battery’s life-cycle carbon footprint and, over time, places batteries into performance classes against a threshold.

  • Measured across the life cycle, per functional unit (kWh delivered over service life).
  • Calculated using the Commission’s harmonised methodology.
  • Declared in the passport and used for carbon-footprint performance classes.

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