Industrial Batteries and Stationary Storage under the EU Battery Regulation: Definition, Obligations and Deadlines

Regulation (EU) 2023/1542, in force since 17 August 2023 and applicable since 18 February 2024 (Article 96), sorts every battery into five categories (Article 1(3)), and recital 15 places home energy storage in the industrial one. The sections below cover the category, its sub-types, duties and dates under the EU Battery Regulation.

What Is an Industrial Battery?

Article 3(1), point (13), of Regulation (EU) 2023/1542 defines an industrial battery as "a battery that is specifically designed for industrial uses, intended for industrial uses after having been subject to preparation for repurposing or repurposing, or any other battery that weighs more than 5 kg and that is neither an electric vehicle battery, an LMT battery, nor an SLI battery". The definition is unchanged as of 13 November 2026 (consolidated text on EUR-Lex).

The Three Routes into the Industrial Category

A battery is industrial when it meets any one of three routes: industrial design, industrial use after repurposing, or the residual route for batteries of more than 5 kg. The table sets out each route.

Table 1: Regulation (EU) 2023/1542, as of 13 November 2026.

Recital 15 sorts batteries by design and use, independently of their chemistry, and names industrial activities, communication infrastructure, agricultural activities and the generation and distribution of electric energy as industrial uses. Each term of the definition is set out under Battery Regulation definitions.

Industrial Battery Sub-Types: Stationary Storage and External Storage

The Regulation names two sub-types inside the industrial category: the stationary battery energy storage system of Article 3(1), point (15), and the battery with external storage of Article 3(1), point (8), and each sub-type changes which duties apply.

A stationary battery energy storage system is "an industrial battery with internal storage that is specifically designed to store from and deliver electric energy to the grid or store for and deliver electric energy to end-users, regardless of where and by whom the battery is being used".

A battery with external storage is "a battery that is specifically designed to have its energy stored exclusively in one or more attached external devices" (OJ text). The general battery definition of point (1) allows either kind of storage. The table compares the two sub-types with the capacity threshold.

Where the Industrial Category Ends: The Four Other Categories

Industrial is the residual category for batteries of more than 5 kg: a battery that meets the definition of an electric vehicle, LMT or SLI battery is not industrial, whatever its weight, and a sealed battery of 5 kg or less that is not designed for industrial use is portable. The overview of all five battery categories shows the full order.

Traction batteries for rail, waterborne and aviation transport or off-road machinery stay industrial, while traction batteries of toy vehicles are portable (recital 15). Article 1(3), second subparagraph, sets the strictest-category rule for Chapter II only, never for registration, collection or labelling.

Obligations for Industrial Batteries by Requirement

Most product duties for industrial batteries depend on two switches: a capacity greater than 2 kWh triggers the carbon footprint, recycled content, performance and passport rules, while the stationary battery energy storage system triggers the safety and state of health rules with no capacity threshold. The table gives each provision and start date.

Table 4: Regulation (EU) 2023/1542, as of 13 November 2026.

Carbon Footprint and Recycled Content: The 2 kWh Threshold

Rechargeable industrial batteries with a capacity greater than 2 kWh, except those with exclusively external storage, need a carbon footprint declaration from 18 February 2026 or 18 months after the entry into force of the delegated act and the implementing act, whichever is the latest (Article 7(1), second subparagraph, point (b)).

Performance classes follow from 18 August 2027 and a maximum threshold from 18 February 2029, each or 18 months after the acts concerned, whichever is the latest (Article 7(2) and (3)). The carbon footprint declaration of a back-up battery uses one kWmin of backup power capability as its functional unit (Annex II, point 3).

Recycled content documentation applies from 18 August 2028 or 24 months after the delegated act, whichever is the latest (Article 8(1)), and shares of 16 % cobalt, 85 % lead, 6 % lithium and 6 % nickel from 18 August 2031 (Article 8(2)). None of these acts had been adopted as of 13 November 2026.

Performance Values and the Exclusively External Storage Carve-Out

Since 18 August 2024 rechargeable industrial batteries with a capacity greater than 2 kWh have had to be accompanied by a document with the Annex IV, Part A, performance and durability values (Article 10(1)), and minimum values apply from 18 August 2027 or 18 months after the entry into force of the delegated act, whichever is the latest (Article 10(2)).

Exclusively external storage stays outside Articles 8 and 10(2), and its carbon footprint declaration starts on 18 August 2030 or 18 months after the acts, whichever is the latest.

The Article 10(5) act, due by 18 February 2026, had not been adopted as of 13 November 2026; its draft Ares(2026)9188325 drew 33 feedback responses by 27 October 2026 (Have Your Say 14460).

Safety and State of Health Rules for Stationary Storage

Every stationary battery energy storage system placed on the market or put into service since 18 August 2024 must be safe during normal operation and use under Article 12(1), whatever its capacity.

Its technical documentation holds Annex V test evidence on 11 parameters, other hazards and mitigation (Article 12(2)), as detailed under safety of stationary battery energy storage systems.

The battery management system of such a system has held Annex VII, Part A, state of health data since 18 August 2024, such as remaining capacity (Article 14(1)). The legal purchaser and third parties acting on its behalf get read-only access (Article 14(2)). Other industrial batteries carry neither duty.

Labels, QR Code and Passport from 18 February 2027

From 18 February 2027 every industrial battery carries a QR code under Article 13(6), and for an industrial battery with a capacity greater than 2 kWh that code opens the battery passport of Article 77. The collection symbol has applied since 18 August 2025 (Article 13(4)), and no capacity label applies (Article 13(2)).

The passport covers external storage too (Article 77(1)). Pending proposal COM(2025) 504 (2025/0134(COD); agreed text approved in committee on 14 July 2026, indicative plenary 23 November 2026, OEIL, as of 13 November 2026) would add stationary storage instructions to the EU battery passport in Annex XIII, point 1(t).

Requirements That Do Not Apply to Industrial Batteries

Three rules do not reach industrial batteries: removability and replaceability (Article 11, portable and LMT batteries only), the cadmium limit of 0.002 % for portable batteries, and a numeric collection target. The mercury limit of Annex I does apply, kept at 0.0005 % when Regulation (EU) 2026/1738 replaced the annex.

Registration, Take-Back and Reporting for Industrial Batteries

A producer of industrial batteries registers in each Member State where it first makes a battery available, declares the industrial category and chemistry in that register, and takes back all waste industrial batteries free of charge, as Chapter VIII has required since 18 August 2025. The basis is Articles 55(2), 55(3)(c) and 96(2), point (c).

Take-back under Article 61(1) carries no purchase condition, and private, non-commercial users of industrial batteries bear no dismantling or collection costs (third subparagraph). Distributors take back waste industrial batteries "at or in the vicinity" of the retail outlet (Article 62(1)(b)).

Producers report four items for industrial batteries: those placed on the market, delivered for preparation for re-use or repurposing, delivered for treatment, and exported (Article 75(2)). Registration is national, so each Member State register is described under battery producer registration.

Key Dates for Industrial Batteries

Industrial batteries meet fixed dates for documentation, safety, take-back and the passport, and conditional dates for the carbon footprint, recycled content, minimum performance values and the general label. The table lists fixed dates first.

Table 5: All dates are in the EU Battery Regulation timeline; act status under battery regulation delegated acts.

How to Prepare an Industrial Battery for Placing on the Market

Preparation for an industrial battery starts with the sub-type and the capacity, because these two facts decide whether the safety file, the state of health data, the performance document and the passport apply at all. The six steps below follow that order.

1. Confirm which battery category and sub-type apply.
2. Check the capacity against the 2 kWh threshold.
3. Choose Module A or D1, or A or G for non-series batteries, and plan D1 or G with a notified body for Articles 7 and 8 (battery conformity assessment, Article 17).
4. Keep the technical documentation and EU declaration of conformity for 10 years (Article 38(4)).
5. Register in each Member State, as Article 55 requires of producers.
6. Plan the passport data for 18 February 2027.

Due diligence follows the operator, not the category: from 18 August 2027 it binds economic operators with a net turnover above EUR 40 million, counted for the operator and its group (Articles 47 and 48(1)), whatever their battery categories.

Need help preparing industrial batteries for the battery passport? See the battery regulation compliance programme.

Industrial Category History and Change of Use

Under Directive 2006/66/EC electric vehicle batteries counted as industrial batteries, and Regulation (EU) 2023/1542 moved them into a category of their own, while a repurposed battery intended for industrial use now becomes an industrial battery.

Pending proposal COM(2025) 981 (2025/0397(COD), "Awaiting committee decision", indicative plenary 14 December 2026, OEIL, as of 13 November 2026) leaves Article 3(1), points (9) to (15), untouched.

A repurposed battery must comply with the Regulation, taking into account a possible change of category (Article 45(2)). A new passport links to the original (Article 77(7)); Articles 7(5), 8(4) and 10(4) exempt batteries placed on the market before the operation, as for second-life batteries.

Industrial Battery Questions

Four questions recur about the industrial category under the Regulation.

Is a home energy storage system an industrial battery?

Yes: recital 15 names batteries used for energy storage in private or domestic environments as industrial batteries, and the stationary storage rules of Articles 12 and 14 apply to them. A battery passport follows only with a capacity greater than 2 kWh.

Are traction batteries for trains, ships and aircraft industrial batteries?

Yes: recital 15 keeps traction batteries for rail, waterborne and aviation transport and for off-road machinery in the industrial category. Traction batteries for road vehicles of categories M, N and O are electric vehicle batteries under Article 3(1), point (14).

Does the 2 kWh threshold apply to stationary storage safety rules?

No: Articles 12 and 14 apply to every stationary battery energy storage system without a capacity threshold. The threshold of a capacity greater than 2 kWh governs Articles 7, 8, 10 and 77 only.

Which duties still apply to exclusively external storage?

An industrial battery with exclusively external storage and a capacity greater than 2 kWh still needs the Article 10(1) document and a battery passport from 18 February 2027. Its carbon footprint dates start later, and Articles 8 and 10(2) do not apply.