What is a battery passport?

From 18 February 2027, EV batteries, batteries for light means of transport and industrial batteries above 2 kWh need an electronic record with information on the model and the individual battery.

Explained in

Battery storage · Stop 04What does a battery need for safety and permits?Safety tests in EU law, fire protection on site, the battery passport and second-life batteries: what a stationary system needs before and during operation.
  • Battery passport: from 18 February 2027, every industrial battery above 2 kWh, every EV battery and every battery for light means of transport placed on the market needs an electronic record with information on the model and the individual battery.
  • Repurposing: EU law defines repurposing as using a battery, or parts of it, for a purpose other than the one it was designed for, such as a former car battery in a stationary system. Its safety documentation must then be reviewed.
From “Passport and second life”, stop 04

Terms

  1. Battery passportAn electronic record required from 18 February 2027 for EV batteries, batteries for light means of transport and industrial batteries above 2 kWh, with information on the model and the individual battery.
  2. RepurposingUsing a battery, or parts of it, for a purpose other than the one it was designed for, such as a car battery in a stationary system.
  1. Are battery storage systems safe?EU law requires stationary systems to be tested for the safety parameters of Annex V of the Batteries Regulation, ten tests from thermal shock to fire, with the emission of gases considered throughout, and to document further hazards and their mitigation.
  2. Why do some fast chargers have a battery?Peaks of demand are short. A battery charges slowly from a small grid connection and discharges quickly into cars, so a site can offer high power where the grid cannot yet.
  3. How does a site battery plan its day?From a demand forecast, the grid limit and the day's prices, hour by hour, with four rules in order: never below the floor, cover the peak, keep the reserve for the next peak, then follow the price. The deep dive shows one day's plan.
  1. EUR-Lex: Regulation (EU) 2023/1542 on batteries, Articles 3, 12, 14 and 77 and Annex V. https://eur-lex.europa.eu/eli/reg/2023/1542/oj. Checked 09 Oct 2026. © European Union, reused under Commission Decision 2011/833/EU.
  2. EUR-Lex: Regulation (EU) 2023/1542 on batteries, Articles 3, 12, 14 and 77 and Annex V. https://eur-lex.europa.eu/eli/reg/2023/1542/oj. Checked 09 Oct 2026. © European Union, reused under Commission Decision 2011/833/EU.
  3. EUR-Lex: Regulation (EU) 2023/1542 on batteries, Articles 3, 12, 14 and 77 and Annex V. https://eur-lex.europa.eu/eli/reg/2023/1542/oj. Checked 09 Oct 2026. © European Union, reused under Commission Decision 2011/833/EU.