Battery Passport Data Requirements: A Complete Checklist for Manufacturers

Introduction: The Data Challenge of the EU Battery Regulation

The European Union's Battery Regulation (EU 2023/1542) is not just an environmental mandate; it is a massive data integration challenge. By February 2027, every industrial battery (>2 kWh), Electric Vehicle (EV) battery, and Light Means of Transport (LMT) battery must feature a Battery Digital Passport (BDP).

But what exactly goes into this digital passport? The European Commission has outlined a complex matrix of up to 90 specific data attributes. Collecting, verifying, and securely hosting this information requires unprecedented collaboration across the entire battery value chain—from the mining of raw materials to the final assembly line.

In this guide, we break down the mandatory Battery Passport data requirements into an actionable checklist for manufacturers. We will explore the static data you must provide, the dynamic data your Battery Management System (BMS) must report, and the strict access controls you must implement to protect your intellectual property.

The Three Tiers of Data Access

Before diving into the specific data points, it is crucial to understand that the Battery Passport is not a public bulletin board. The EU mandates a strict Role-Based Access Control (RBAC) system. The data is divided into three access tiers:

1. Public Access

Accessible to anyone who scans the QR code (consumers, researchers). Includes general information, sustainability metrics, and basic chemistry.

2. Restricted Access

Accessible only to authorized economic operators (recyclers, repairers, second-life operators). Includes detailed dismantling instructions and dynamic health data.

3. Authority Access

Accessible only to market surveillance authorities and the EU Commission. Includes sensitive compliance documents, test reports, and full supply chain audits.

Your digital passport solution, such as AkkuPass, must automatically authenticate the user and serve only the data they are legally permitted to view.

The Complete Battery Passport Data Checklist

Below is a comprehensive breakdown of the data requirements, categorized by their function within the battery's lifecycle.

Public 1. General Battery & Manufacturer Information

This foundational data identifies the product and the economic operator responsible for it.

  • Manufacturer's name, registered trade name, and trademark.
  • Manufacturer's postal address and web address.
  • Battery category (e.g., EV, LMT, Industrial).
  • Battery model identifier and unique product identifier (linked to the QR code).
  • Date of manufacture (month and year) and location of the manufacturing plant.
  • Weight of the battery.

Public 2. Material Composition & Chemistry

Transparency regarding the internal chemistry is vital for safe recycling and handling.

  • Battery chemistry (e.g., Lithium-ion NMC, LFP, Solid-state).
  • Hazardous substances present in the battery (in accordance with REACH and RoHS directives).
  • Critical raw materials present (Cobalt, Lithium, Nickel, Natural Graphite) and their exact weight/percentage.
  • Recycled Content Share: The percentage of cobalt, lithium, and nickel recovered from waste (mandatory starting in 2028).

Public 3. Carbon Footprint & Sustainability

The EU aims to ensure batteries have the lowest possible environmental impact.

  • A detailed Carbon Footprint Declaration (calculated per kWh of battery energy).
  • Carbon footprint performance class (ranking the battery against market averages).
  • A web link to the public version of the study supporting the carbon footprint values.
  • Link to the manufacturer's Supply Chain Due Diligence policy (proving ethical sourcing of minerals).

Restricted 4. Performance, Durability & Dynamic Data (SoH)

This data is critical for second-life operators and repair facilities. It requires API integration with the BMS.

  • Rated capacity (in Ah) and nominal voltage (in V).
  • Minimum, nominal, and maximum voltage limits.
  • Original power capability and limits for acceptable temperature ranges.
  • Expected cycle life (under specific reference conditions).
  • Dynamic Data: Current State of Health (SoH), State of Charge (SoC), capacity fade, internal resistance, and the total number of charge/discharge cycles experienced.

Restricted 5. End-of-Life & Dismantling Information

Required by recyclers to safely process the battery at the end of its life.

  • Detailed manual for the safe removal of the battery from the appliance or vehicle.
  • Instructions for dismantling the battery pack into modules or cells.
  • Safety measures and extinguishing instructions in case of thermal runaway or fire.
  • Part numbers for components (to aid in repair and replacement).

Authorities 6. Compliance & Regulatory Documents

Highly sensitive data reserved for market surveillance authorities to verify legal compliance.

  • The EU Declaration of Conformity.
  • Results of test reports proving compliance with safety and performance standards.
  • Full, unredacted reports on supply chain due diligence audits.

The Challenge of Data Collection: Why Spreadsheets Won't Work

Looking at the checklist above, it becomes immediately clear that managing Battery Passport data requirements manually via spreadsheets or legacy ERP systems is impossible. The data is simply too fragmented.

  • Siloed Internal Data: Your engineering team holds the chemistry data, your sustainability team holds the LCA (carbon footprint) data, and your legal team holds the compliance documents.
  • Upstream Supply Chain Data: You must extract verified data from tier-1, tier-2, and tier-3 suppliers (e.g., the exact origin of the cobalt).
  • Dynamic Downstream Data: The passport must update in real-time with State of Health data from the battery's BMS while it is in use.

To achieve compliance without disrupting your operations, you need a centralized, automated platform. Solutions like AkkuPass are designed specifically to aggregate this fragmented data, generate the compliant QR codes, and manage the complex role-based access controls required by the EU.

Next Steps: Start Your Data Mapping Today

The 2027 deadline may seem distant, but the data collection process must begin immediately. If you wait until 2026 to ask your suppliers for their carbon footprint data, they will not be able to provide it in time, and your products will be blocked from the EU market.

Action Item: Use the checklist above to conduct an internal data audit. Identify which data points you already have, which ones you need to request from suppliers, and which ones require new technical integrations (like BMS APIs).

For a seamless transition to ESPR compliance, explore how AkkuPass can automate your Battery Digital Passport data management.

Frequently Asked Questions (FAQ)

Do I have to reveal my proprietary battery chemistry?

No. The EU Battery Regulation protects intellectual property. While general chemistry (e.g., NMC 811) and hazardous substances must be disclosed, exact proprietary formulas are protected and only accessible to market surveillance authorities under strict confidentiality.

How is dynamic data (State of Health) updated in the passport?

Dynamic data is not manually uploaded. The Battery Passport system must integrate with the Battery Management System (BMS) via secure APIs to read and update the State of Health (SoH) and cycle counts periodically or upon request by an authorized user.

What happens if my supplier cannot provide carbon footprint data?

If primary data from a supplier is unavailable, the EU methodology allows for the use of secondary data (industry averages from recognized databases) for a limited time. However, to remain competitive and compliant in the long term, you must transition suppliers to provide primary, verified data.