Why EU Battery Substances Compliance Matters in 2026

Battery compliance in the EU has changed significantly. Companies can no longer treat batteries as simple components that only need a supplier declaration or a basic safety check.

Under Regulation (EU) 2023/1542, batteries are regulated across a much wider life cycle. The Regulation covers sustainability, safety, labelling, marking, information, extended producer responsibility, waste battery treatment, reporting, due diligence and green public procurement requirements for batteries and products into which batteries are incorporated.

For manufacturers, importers, distributors, brand owners and suppliers, this means battery substance compliance is now directly connected to market access. A battery may be technically functional, but still create compliance risk if the company cannot prove that restricted substance limits, labelling rules, CE marking requirements and technical documentation obligations are met.

The key question for companies is no longer only:

“Does this battery work?”

The real compliance question is:

“Can we prove that this battery, battery pack or battery-containing product meets EU substance requirements before it is placed on the EU market?”

Quick Answer: Do I Need EU Battery Substances Compliance?

You likely need to assess EU Battery Substances Compliance if your company manufactures, imports, distributes or sells any of the following in the EU:

The Regulation applies to batteries placed on the market or put into service in the EU, and it also covers products into which batteries are incorporated.

If your company sells products that contain batteries, the battery may seem like a small component, but it can still create documentation, labelling and supplier data obligations.

What Is EU Battery Substances Compliance?

EU Battery Substances Compliance means ensuring that batteries placed on the EU market meet the hazardous substance requirements under the EU Batteries Regulation and that the company can prove compliance with reliable documentation.

The core restricted substances currently include:

ECHA explains that Article 6 of the Batteries Regulation sets out a framework to restrict hazardous substances in batteries so that substances used in batteries, or present in waste batteries, do not pose unacceptable risks to human health or the environment.

In practical terms, compliance means your company should be able to answer:

• Which batteries are in scope?
• Which battery category applies?
• Which restricted substances are present?
• Are mercury, cadmium and lead below the applicable thresholds?
• Is the supplier declaration specific and reliable?
• Is testing needed?
• Are the correct labels and symbols applied?
• Is CE marking supported by conformity documentation?
• Is the product ready to be placed on the EU market?

Latest EU Battery Substances Compliance Updates

1. Regulation (EU) 2023/1542 is now the main EU battery framework

Regulation (EU) 2023/1542 replaces the older battery directive approach with a directly applicable EU regulation. It lays down requirements on sustainability, safety, labelling, marking and information for batteries placed on the market or put into service in the EU.

This matters because the Regulation is not limited to chemical restrictions. It connects substance control with broader obligations such as conformity assessment, CE marking, labelling, waste management, recycling, due diligence and digital information.

For companies, the practical impact is clear: battery compliance must be managed as a structured product compliance process, not as a one-time document request.

2. Mercury, cadmium and lead remain the core restricted substances

The current battery substance restrictions focus mainly on mercury, cadmium and lead. ECHA confirms that the Batteries Regulation continues restrictions on mercury and cadmium and introduces a lead restriction for portable batteries.

The key substance thresholds commonly applied under the EU Batteries Regulation are:

Industry summaries of Regulation (EU) 2023/1542 identify the mercury, cadmium and lead thresholds as 0.0005%, 0.002% and 0.01% respectively.

For compliance teams, this means every battery record should have clear evidence for Hg, Cd and Pb status. A generic statement saying “compliant with EU battery rules” is weaker than a declaration linked to the exact battery model, part number, supplier and substance thresholds.

3. CE marking and EU Declaration of Conformity are now essential

Battery substance compliance is connected to conformity assessment. From 18 August 2024, batteries are required to undergo conformity assessment procedures, and CE marking and EU Declaration of Conformity requirements became mandatory for batteries under the EU Batteries Regulation.

This is important because a company needs more than a restricted substance declaration. It needs a compliance file that supports the product’s marketability.

A strong battery technical file should include:

Without this structure, a company may struggle to respond to customer audits, authority requests, customs checks or marketplace documentation reviews.

4. ECHA is working on future substances of concern in batteries

One of the most important 2026 readiness points is that battery substance compliance may expand beyond mercury, cadmium and lead.

ECHA states that the European Commission, assisted by ECHA, must prepare a report by 31 December 2027 identifying substances of concern in batteries, including substances that may negatively affect human health, the environment or recycling processes.

This means companies should not build a compliance process that only checks three substances and stops there. A future-ready battery compliance system should be able to manage additional substances, supplier declarations, testing evidence and updated restrictions when new requirements appear.

5. Battery due diligence obligations were postponed to 2027

A major 2025 update is Regulation (EU) 2025/1561, which amended Regulation (EU) 2023/1542 regarding battery due diligence policies. The amendment concerns economic operator obligations covering the sourcing, processing and trading of cobalt, natural graphite, lithium and nickel used for battery manufacturing.

The due diligence application date was postponed from 18 August 2025 to 18 August 2027.

This delay gives companies more time, but it should not be treated as a reason to wait. Battery due diligence requires supplier mapping, raw material visibility, risk assessment, policies, corrective actions and supporting documentation. These processes usually take time to build, especially for complex supply chains.

6. Recycling and recovery rules are becoming more detailed

In July 2025, the European Commission published new rules for waste batteries to calculate and verify recycling efficiency and material recovery rates. The Commission stated that the aim is to boost recycling and recovery, especially for critical and strategic raw materials.

This matters for substance compliance because EU battery policy is increasingly connected to circularity. Substances are not only assessed based on their presence in new batteries, but also based on how they affect waste handling, recycling and the recovery of valuable materials.

EU Battery Compliance Timeline: Key Dates to Know

Which Battery Categories Are Affected?

The EU Batteries Regulation covers several battery categories. Correct classification is one of the first steps in compliance.

The Regulation defines categories such as portable batteries, LMT batteries, SLI batteries, industrial batteries and electric vehicle batteries.

Wrong classification can lead to the wrong substance checks, missing labels, incomplete technical documentation or incorrect marketability decisions.

What Substances Should Companies Check?

Mercury

Companies should confirm whether mercury is intentionally used, present as an impurity or declared by suppliers. Mercury evidence should be linked to the exact battery model, not only to the supplier company.

Practical evidence may include:

Cadmium

Cadmium is particularly important for portable batteries. Companies should verify whether cadmium exceeds the applicable threshold and whether cadmium-related labelling requirements are triggered.

Cadmium risk may appear in:

• Legacy products
• Old supplier stock
• Replacement batteries
• Imported battery-containing products
• Products with unclear battery chemistry
• Supplier declarations that do not include substance thresholds

Lead

Lead is one of the most important battery substance topics because the EU Batteries Regulation introduced a lead restriction for portable batteries. ECHA confirms that the Regulation introduces a lead restriction for portable batteries.

This is especially relevant for companies selling:

• Small electronic devices
• Toys
• Medical devices
• Remote controls
• Tools
• Consumer appliances
• Hearing-related devices
• Button-cell-powered products
• Imported finished goods with embedded portable batteries

Companies should not assume that a battery is compliant only because the finished product passed another regulation. Battery-specific evidence is still needed.

Labelling and Chemical Symbol Requirements

Battery substance compliance is also connected to labelling. If certain substance thresholds are exceeded, chemical symbols such as Cd or Pb may need to appear below the separate collection symbol.

This creates an important practical distinction:

A battery can create labelling obligations even when the compliance issue is not obvious to the commercial team. This is why label review should be part of the same workflow as substance assessment.

What Documents Do Companies Need for EU Battery Substances Compliance?

A potential client usually wants to know exactly what to collect. The following checklist can be used as a practical starting point.

The goal is not just to collect files. The goal is to connect each file to the correct product, battery, supplier, regulation, market and compliance decision.

Is a Supplier Declaration Enough, or Do I Need Testing?

A supplier declaration may be enough in some cases, but only when it is specific, current and reliable.

A supplier declaration is stronger when it includes:

Testing may be needed when:

Testing should be risk-based. A strong compliance process helps companies avoid unnecessary testing while still identifying where laboratory evidence is needed.

Common EU Battery Substances Compliance Mistakes

1. Forgetting embedded batteries

Many companies focus on standalone batteries and forget products that contain batteries. This is risky because the Regulation also covers products into which batteries are incorporated.

2. Treating supplier emails as a compliance system

Supplier emails are useful, but they are not enough if they are not organized, reviewed and connected to the right item.

3. Using generic supplier declarations

A declaration that simply says “our products comply” may not be strong enough. Companies need evidence linked to exact battery models, part numbers and substance thresholds.

4. Checking only mercury, cadmium and lead

Hg, Cd and Pb are essential, but ECHA is already working on substances of concern in batteries. Future restrictions may expand the compliance scope.

5. Confusing substance limits with labelling duties

Companies should check both whether the battery complies with substance limits and whether any chemical symbol labelling is required.

6. Missing CE marking evidence

From 18 August 2024, conformity assessment, EU Declaration of Conformity and CE marking became central battery compliance obligations.

7. Waiting until 2027 for due diligence

Due diligence obligations were postponed to 18 August 2027, but companies using cobalt, lithium, nickel or natural graphite should prepare early because supplier mapping and risk assessment take time.

Practical 90-Day Action Plan for Compliance Teams

First 30 Days: Identify the Scope

Days 31–60: Collect and Review Evidence

Days 61–90: Close Gaps and Control Marketability

FAQ: EU Battery Substances Compliance

Are batteries containing lead allowed in the EU?

Lead is restricted for certain batteries, especially portable batteries. Companies need to check whether the battery category, threshold and timing rules apply. ECHA confirms that the EU Batteries Regulation introduced a lead restriction for portable batteries.

Do battery-containing products need battery compliance checks?

Yes. Products containing batteries can be affected because the EU Batteries Regulation covers batteries placed on the market or put into service, including products into which batteries are incorporated.

Is a supplier declaration enough?

Sometimes, but only if it is specific, current and traceable. A strong declaration should identify the battery model, supplier, regulation, substance thresholds and date. High-risk or unclear cases may require testing.

What substances are currently most important?

The main restricted substances are mercury, cadmium and lead. However, companies should also prepare for future substances of concern because ECHA and the European Commission are assessing additional substances in batteries.

Do batteries need CE marking?

Yes, CE marking and EU Declaration of Conformity requirements became central from 18 August 2024 under the EU Batteries Regulation.

What is changing in 2027?

Two important 2027 developments are relevant: battery due diligence obligations are now postponed to 18 August 2027, and the Commission/ECHA report on substances of concern is due by 31 December 2027.

Why EU Battery Substances Compliance Is a Data Management Challenge

EU Battery Substances Compliance is not only a legal task. It is a supplier data, documentation and marketability control challenge.

Companies need to connect:

• Products
• Battery models
• Battery categories
• Suppliers
• Substance declarations
• Test reports
• Labels
• CE marking
• EU Declarations of Conformity
• Technical documentation
• Due diligence records
• Marketability decisions
• Regulatory updates

If this information is scattered across emails, spreadsheets and folders, the company may not be able to prove compliance quickly when a customer, authority or marketplace asks for evidence.

This is where product compliance software becomes valuable.

How ComplyMarket Product Compliance Software Can Help

ComplyMarket helps companies turn EU Battery Substances Compliance from a scattered document exercise into a structured, controlled and provable compliance workflow.

ComplyMarket’s Battery Compliance Management approach is designed to help companies identify which battery rules apply, connect those rules to each battery or battery-containing product, collect evidence, validate supplier information and decide whether a product is ready for market in each jurisdiction.

1. Build a controlled battery inventory

The first problem many companies face is simple but critical: they do not have one reliable inventory of batteries and products containing batteries.

ComplyMarket helps companies structure battery records so compliance teams can connect each battery to:

• Product name
• Part number
• Battery category
• Supplier
• Chemistry
• Market
• Substance evidence
• Labelling status
• Technical documentation
• Marketability decision

This gives companies a clear foundation for compliance work.

2. Collect supplier declarations in a structured way

EU Battery Substances Compliance depends heavily on supplier data. ComplyMarket’s material compliance software supports customized supplier questionnaires, Excel or web-based input options, supplier accounts and automated supplier communication.

Instead of asking suppliers for information through inconsistent emails, companies can collect structured responses for:

• Mercury status
• Cadmium status
• Lead status
• Battery chemistry
• Material composition
• Test reports
• Label data
• CE and conformity evidence
• Due diligence information where applicable

This helps reduce missing data, inconsistent declarations and supplier follow-up delays.

3. Manage substance data from product to material level

ComplyMarket supports high-granularity data from product and component level down to material and substance level.

For battery substance compliance, this is important because companies need to know not only whether a finished product is compliant, but also which battery, material or supplier evidence supports that conclusion.

This helps teams move from “we think this product is compliant” to “we can prove why this product is compliant.”

4. Review supplier declarations for quality and traceability

Receiving a declaration is not the same as having usable evidence. ComplyMarket’s supplier declaration analysis approach helps companies review whether supplier declarations are complete, reliable, traceable and suitable for compliance decision-making.

This is useful for identifying common problems such as:

• Generic statements
• Missing substance details
• Weak product traceability
• Outdated declarations
• Missing regulatory scope
• Missing version control
• Incomplete supplier identity
• Ambiguous documentation

For battery compliance, this can help reduce the risk of relying on weak or unusable supplier evidence.

5. Connect evidence to marketability decisions

ComplyMarket’s Battery Compliance Management page explains that battery compliance requires evidence management and marketability by jurisdiction, so teams can decide whether a product is ready for market.

This is a major business benefit. Compliance teams, product managers and sales teams need to know:

• Which batteries are ready for the EU market?
• Which products are blocked because evidence is missing?
• Which suppliers still need to respond?
• Which labels need review?
• Which declarations are expired or incomplete?
• Which products need testing before release?

A clear marketability view helps companies avoid last-minute launch delays and reduce the risk of placing non-compliant products on the market.

6. Prepare for future substances of concern

Because ECHA is working on substances of concern in batteries, companies need flexible systems that can adapt to future restrictions.

ComplyMarket helps by creating a structured compliance environment where new substance requirements, supplier questionnaires and evidence requests can be added as regulations evolve.

This is especially important for companies with large product portfolios, multiple suppliers and complex battery-containing product lines.

7. Support broader product compliance beyond batteries

Battery compliance rarely exists alone. Many battery-containing products may also need to comply with other requirements such as RoHS, REACH, SCIP, PFAS, packaging, EPR, Digital Product Passport or product safety obligations.

ComplyMarket provides product, material, ESG, supply chain due diligence and Digital Product Passport workflows in one portal.

This makes it easier for companies to manage battery substance compliance as part of a wider product compliance and sustainability strategy.

Business Benefits of Using ComplyMarket for Battery Substances Compliance