--- title: "What Data Goes Into a Battery Passport? Every Field Explained · PackPass" url: https://packpass.forgedigital.eu/guides/battery-passport-data-fields/ language: en description: "Every field in an EU battery passport under Annex XIII: what's public, what's restricted, what's per model and what's per battery." --- [PackPass](https://packpass.forgedigital.eu/) / [Guides](https://packpass.forgedigital.eu/guides/) / Battery passport data Guide · data # What data goes into a battery passport? Every piece of information an EU battery passport holds, grouped by who can see it, with what's shared by a whole model and what belongs to one battery. Updated 21 October 2026 · 7 min read Short answer A battery passport holds the information set out in **Annex XIII** of the Batteries Regulation; our field list has around **50 items**. Most of it describes the **battery model** and is **public**: manufacturer, chemistry, capacity, voltage, expected lifetime in cycles and how to return the battery. More detailed information, such as composition, dismantling instructions and the individual battery's state of health, is restricted. Below is every field PackPass supports, grouped the way the regulation groups them. ## Four levels of access Annex XIII splits the passport into four parts, each with its own audience: Part| Who can see it| What's in it ---|---|--- 1\. Public| Anyone who scans the QR code| Identification, materials, carbon footprint and sourcing, performance and durability, end-of-life information 2\. Legitimate interest| People with a legitimate interest (such as repairers and recyclers) and the Commission| Detailed composition, part numbers and spare part contacts, dismantling information, safety measures 3\. Authorities| Notified bodies, market surveillance authorities and the Commission| Test reports proving compliance 4\. Legitimate interest, per battery| People with a legitimate interest (such as repairers, recyclers and second-life operators)| The individual battery's state of health, expected lifetime in calendar years, performance in use, status and usage, such as charge cycles, negative events and operating conditions Exactly who counts as having a "legitimate interest", and how they get access, will be set by an implementing act that the Commission expects to publish in draft in late 2026. ## Per model or per battery? Every battery has its own passport and QR code, but most of the data is the same for every battery of a model. In practice you collect the model data once (usually from your supplier) and add only a few things per battery: its serial number, date of manufacture and, over its life, its state of health and status. See how this looks in our [sample passport](https://packpass.forgedigital.eu/sample-passport/). ## Every field, by group "Per model" fields are the same for all batteries of a model; "per battery" fields belong to one physical battery. Each battery's unique identifier, serial number and date of manufacture are recorded in addition to the fields below, along with the battery category and model identification. Some fields apply only to certain battery types, for example only to some industrial batteries, and the warranty field only if you offer a commercial warranty. ### Identification · Public Field| Kept ---|--- Manufacturer| Per model Manufacturer address and contact| Per model Economic operator placing it on the market| Per model Economic operator address and contact| Per model Place of manufacture| Per model Weight (kg)| Per model Usable fire extinguishing agent| Per model EU declaration of conformity| Per model Marking information (symbols and labels on the battery)| Per model ### Materials and composition · Public Field| Kept ---|--- Battery chemistry| Per model Hazardous substances| Per model Critical raw materials| Per model Share of renewable content (%)| Per model ### Carbon footprint and sourcing · Public Not required yet in February 2027: the rules for carbon footprint and recycled content are still being adopted, and the due diligence report applies from August 2027 (only to companies with a net turnover of €40 million or more, or that belong to a larger group). Field| Kept ---|--- Carbon footprint (kg CO₂e/kWh)| Per model Carbon footprint performance class| Per model Carbon footprint study (public version)| Per model Supply chain due diligence report| Per model Recycled cobalt share (%)| Per model Recycled lithium share (%)| Per model Recycled nickel share (%)| Per model Recycled lead share (%)| Per model ### Performance and durability · Public Field| Kept ---|--- Rated capacity (Ah)| Per model Total energy (additional information) (kWh)| Per model Nominal voltage (V)| Per model Minimum voltage (V)| Per model Maximum voltage (V)| Per model Original power capability (W)| Per model Maximum permitted power (W)| Per model Expected lifetime| Per model Reference test used for the expected lifetime| Per model C-rate of the cycle-life test| Per model Capacity threshold for exhaustion (%) · EV batteries only| Per model Lowest operating temperature (°C)| Per model Highest operating temperature (°C)| Per model Temperature range when idle (storage)| Per model Initial round-trip energy efficiency (%)| Per model Round-trip efficiency at 50% of cycle life (%)| Per model Internal resistance (cell) (mΩ)| Per model Internal resistance (pack) (mΩ)| Per model Commercial warranty period| Per model ### Collection and end of life · Public Field| Kept ---|--- Prevention and management of waste batteries| Per model Separate collection and take-back points| Per model ### Battery health and usage · Legitimate interest Also records the battery's status: original, repurposed, re-used, remanufactured or waste. Field| Kept ---|--- State of health (%)| Per battery Expected lifetime in calendar years| Per battery Performance values in use (capacity and power fade, internal resistance increase, efficiency fade)| Per battery Operating conditions incl. temperature, and state of charge (periodically recorded)| Per battery Charge/discharge cycles| Per battery Negative events (e.g. accidents, deep discharge)| Per battery ### Repair, dismantling and safety · Legitimate interest Field| Kept ---|--- Detailed composition, incl. cathode, anode and electrolyte materials| Per model Component part numbers and spare part contacts| Per model Dismantling information| Per model Safety measures| Per model ### Compliance evidence · Authorities only Field| Kept ---|--- Test reports proving compliance| Per model ## Where the data comes from * **Your cell or pack supplier:** chemistry, materials, hazardous substances, capacity, voltages, power, cycle life, temperatures, efficiency, internal resistance, composition and dismantling information, test reports. * **You:** your company details as the economic operator, warranty terms, collection and take-back information for the countries you sell in, serial numbers and manufacture dates for each shipment. * **Over the battery's life:** state of health and usage data, usually from the battery management system, and status changes such as repurposing. Collecting the supplier data is usually the slowest part. Our [guide to getting the data from suppliers outside the EU](https://packpass.forgedigital.eu/guides/battery-data-from-chinese-suppliers/) has a ready-made request list. ## Rather not do this yourself? PackPass checks which of your batteries are covered, tells you exactly what to ask your suppliers for and publishes the passports and QR codes for you. The first 10 companies get 3 months free. [Join the waitlist](https://packpass.forgedigital.eu/#waitlist) ## Read next [GuideRegistering battery passports in the EU registryHow to register battery passports in the EU Digital Product Passport registry: who registers, how to verify with a qualified e-seal, and the steps to take now.](https://packpass.forgedigital.eu/guides/eu-battery-passport-registry/)[GuideBattery passport software vs. a done-for-you serviceBattery passport software or a done-for-you service? What the work involves, a side-by-side comparison and the questions to ask any provider.](https://packpass.forgedigital.eu/guides/battery-passport-software-vs-service/)[GuideGetting battery passport data from suppliers in China and outside the EUImporting batteries or e-bikes from China? The data to request from your supplier for the EU battery passport, what to put in the contract and how to handle QR codes.](https://packpass.forgedigital.eu/guides/battery-data-from-chinese-suppliers/) **Not legal advice.** This guide explains the rules in plain language as of the date above. Some implementing acts are still being adopted, so details can change. For decisions about your specific products, check the official texts or ask a lawyer. Sources: * [Regulation (EU) 2023/1542 concerning batteries and waste batteries](https://eur-lex.europa.eu/eli/reg/2023/1542/oj), Article 77 and Annex XIII * [European Commission: EU Digital Product Passport FAQ for batteries (1st edition, September 2026)](https://single-market-economy.ec.europa.eu/single-market/digital-product-passport/eu-digital-product-passport-faq-batteries_en) © 2026 PackPass by Forge Digital · Sofia, Bulgaria [Guides](https://packpass.forgedigital.eu/guides/) · [forgedigital.eu@gmail.com](mailto:forgedigital.eu@gmail.com) · [Privacy](https://packpass.forgedigital.eu/privacy.html)