Battery Certifications We Hold | UN38.3, IEC 62619, UL 1973

Quick answer: CMX Battery ships with UN38.3 test summaries on every cross-border lithium battery order and builds to IEC 62619 (industrial Li-ion safety) and UL 1973 (with UL 9540A thermal-propagation data for North American ESS approvals). CE / RoHS documentation covers the EU, manufacturing runs under ISO 9001, and outdoor enclosures are IP65. Market-specific marks outside this list are scoped per project as a costed line item, and some standards permit the certificate to be issued in your company name — we confirm which ones before you commit.

Certification is the difference between a battery that ships and a battery that clears customs. What we cannot shortcut, we will tell you honestly.

This page is our qualification record: what we hold, what each market asks for, what a genuine certificate package contains, and how to verify one. For a standard-by-standard explanation of what each test actually does, see Battery Certifications Explained.

Compliance tool

Certificate Requirement Checker

Select your destination market and application. You will get the baseline document set, what is usually added on top, and the one issue that most often holds a shipment at clearance.

Destination market

Application

Ten-minute authenticity check

Tick these off against any certificate a supplier sends you.

Check the number against the issuing body. UL, TÜV, SGS, Intertek and most notified bodies keep online directories. If it does not resolve, it is marketing material.
Check the scope matches your model. A certificate covering “48 V series, 50–200 Ah” does not cover 280 Ah.
Check the holder name. A certificate held by a trading company is not evidence the factory was audited — ask whose site, and where.
Check the date and standard version. IEC 62619 and UL 9540A have both been revised; a report against a withdrawn version may be refused.
Check the lab accreditation. Look for ISO/IEC 17025, and for tenders, the body named in the tender documents.

If a supplier cannot produce the underlying test report within a day, that is itself an answer.

Request the certificate package

Baseline documents you will be asked for

Commonly added on top

This tool reflects the document sets normally requested for the market and application selected. Final scope depends on your installed configuration, the authority having jurisdiction and your import route — confirm it in writing before you commit to a shipment.

Key facts at a glance

UN38.3 test summary ships with every cross-border lithium order — no extra charge, no request needed.
IEC 62619 is the default expectation of EU and most APAC industrial buyers.
UL 9540A is thermal-propagation test data, not a pass/fail certificate — AHJs read it to size fire protection.
CE is a declaration by the manufacturer, not a laboratory certificate; RoHS is substance compliance.
Certificates are model-specific. A certificate for one model does not cover a different capacity or BMS.
Timeline: using existing marks = 0 weeks; new market-specific testing typically 6–14 weeks plus sample build.

Which lithium battery certifications does CMX Battery hold?

Marks we carry today. Additional market-specific marks are scoped per project — tell us the destination and application and we will map the testing path before you commit.

CMX Battery lithium battery certification marks — Certification marks held by CMX Battery; market-specific marks are scoped per project.

UN38.3 — mandatory for any cross-border shipment

The UN Manual of Tests and Criteria, Section 38.3, is a transport test, not a product-safety approval. It simulates the stresses a cell or pack must survive in air or sea freight: altitude simulation, thermal cycling, vibration, shock, external short circuit, impact/crush, overcharge and forced discharge. No carrier or forwarder will accept a lithium battery without it. We ship the test summary — the document the regulations actually require to accompany the consignment — with every cross-border order.

IEC 62619 — industrial Li-ion safety

The safety standard for secondary lithium cells and batteries in industrial applications (stationary storage, motive auxiliary, UPS). It covers external short circuit, thermal abuse, overcharge, drop and — in later revisions — thermal propagation. EU and most APAC buyers treat it as the baseline: if a quote for an industrial pack does not mention IEC 62619, ask why.

Note the boundary: IEC 62619 is not the same as IEC 62620 (performance) and does not replace IEC 62477-1 or IEC 62109, which apply to the power conversion equipment around the battery.

UL 1973 / UL 9540A — North American ESS approval

UL 1973 covers the battery system itself for stationary, motive auxiliary and light electric rail use. UL 9540 covers the complete energy storage system; UL 9540A is the test method that generates thermal runaway propagation data.

The distinction matters for your schedule: UL 9540A does not issue a “pass”. It produces a report that the authority having jurisdiction (AHJ) reads to decide clearances, sprinkler demand and whether units may be installed side by side. Two suppliers can both “have 9540A” and get opposite answers from the same AHJ, because the underlying data differs.

CE / RoHS — European market access

CE is a declaration of conformity by the manufacturer that the product meets the applicable EU directives (commonly low-voltage and EMC for battery systems, plus machinery or pressure equipment where relevant). RoHS restricts specific substances. For lithium batteries the newer EU Battery Regulation (EU) 2023/1542 phases in additional duties — carbon footprint declarations, recycled content and, on a staged timetable, a digital battery passport. Ask which of these already apply to your product category and date of placement on the market; we will confirm the current position rather than guess.

ISO 9001 — the process behind the pack

Certified quality-management system covering the manufacturing process behind every pack we ship. This is what makes the other documents trustworthy: a certificate describes a sample that was tested once, while ISO 9001 governs whether the thousandth pack matches it.

IP65 — enclosure protection

Dust-tight (first digit 6) and resistant to low-pressure water jets from any direction (second digit 5). Relevant for outdoor cabinets, forklift and marine installations, and telecom enclosures. It is an enclosure rating — it says nothing about electrical safety or thermal performance.

If the unit sits in a wash-down area, a coastal site or an unconditioned outdoor cabinet, IP65 is usually the floor. If it may be temporarily flooded, specify IP67.

Certification summary

Mark / scheme	Scope	What it covers	Who asks for it	Document you receive	Issuable in your name?
UN38.3	Transport safety	Transport simulation: altitude, thermal, vibration, shock, external short, impact/crush, overcharge, forced discharge	Carriers, forwarders, customs — mandatory	Test summary + test report	No (belongs to the cell/pack design)
IEC 62619	Stationary storage	Industrial Li-ion safety: short circuit, thermal abuse, overcharge, drop, propagation	EU and APAC industrial buyers, EPC contractors	CB-framework test report / certificate	Case by case
UL 1973	North America	Battery system safety for stationary and motive auxiliary use	North America AHJs, integrators	UL listing / report	Yes, via separate application
UL 9540A	North America	Thermal runaway propagation test method — data, not a certificate	North America AHJs, fire marshals	Test report with data	Report follows the tested unit
CE (+ RoHS)	European Union	Manufacturer declaration of conformity; substance restrictions	EU importers, distributors, customs	DoC + technical file reference	You are the declarant if you import
ISO 9001	Quality system	Quality management system of the manufacturing site	Tenders, utility pre-qualification	Certificate with scope and site address	No — site-specific to the manufacturer
IP65	Ingress protection	Enclosure ingress protection (dust-tight + water jets)	Outdoor / marine / industrial specs	Ingress test report	Case by case

Read the scope, not the logo. Every certificate on this page is bound to a specific model, voltage window, capacity range and BMS configuration. A certificate for a 48 V 100 Ah rack does not cover a 48 V 280 Ah rack, even from the same factory.

Which certifications does each market require?

Requirements change with the destination and the application. The table below is the practical starting point; we confirm the exact list against your destination port, installation type and grid-connection rules before quoting.

Market / use case	Baseline documents	Commonly added	What usually blocks clearance
European Union (stationary, industrial)	CE DoC, IEC 62619, RoHS, UN38.3 for transport	IEC 62477-1 / 62109 for the PCS; grid-code compliance; national fire authority letter	DoC signed by a non-EU entity with no authorised representative
United States / Canada (ESS)	UL 1973, UL 9540/9540A data, UN38.3	NFPA 855 installation compliance; local AHJ review; utility interconnection study	9540A data missing or not matching the installed spacing
Middle East & APAC	IEC 62619 + UN38.3; destination-specific support per project	SASO / SIRIM / BIS and other national schemes; Arabic or local-language labelling	National mark required but only discovered after shipment
Global tenders & utilities	CB scheme reports, UN38.3, ISO 9001	Type-test reports from accredited labs, traceability records, financial pre-qualification	Test report issued by a non-accredited laboratory
Motive / forklift / AGV	UN38.3, IEC 62619 or UL 2580 depending on region	OEM-specific electrical and CAN protocol compatibility	Assuming a stationary-battery certificate covers a traction application

European Union

CE, IEC 62619 and RoHS, with UN38.3 for transport. This is the standard package for EU importers and installers. If you place the product on the market under your own brand, you become the declarant — which means you need the technical file and an authorised representative if you are outside the EU. Plan that before the container ships.

United States and Canada

UL 1973 plus UL 9540A documentation, with UN38.3 for transport. Scoped per project, because the AHJ — not the manufacturer — decides what the installation may look like. Bring the AHJ into the conversation early; retrofitting a fire-protection design after the units land is the most expensive way to learn this.

Middle East and APAC

IEC 62619 plus market-specific support, handled per project and destination. Several markets in this group require a national mark obtained before shipment (SASO, SIRIM, BIS and equivalents). These are not paperwork you can add later — build the lead time into your order.

Global tenders and utilities

CB scheme reports and additional marks scoped on request for utility and government pre-qualification. Tender documents usually specify the accreditation body as well as the standard: a report from a laboratory without the required accreditation is rejected regardless of the content.

What is actually inside a certification package?

Buyers often ask for “the certificate” when what they need is four different documents. Knowing which is which prevents the most common delay in lithium battery importing: discovering at customs that the file you hold is not the file required.

Lithium battery transportation test report — A UN38.3 transportation test report — the document customs and carriers actually check.

Document	What it proves	When you need it
UN38.3 test summary	Design passed the eight transport simulations. Must be available for every cell and pack type shipped.	Every shipment — carriers and customs
UN38.3 test report	The full laboratory data behind the summary: sample description, photographs, measured values.	Technical review, tender submissions
Safety certificate (IEC 62619 / UL 1973)	The product type met a safety standard. Bound to a model and a scope.	Market access, tender pre-qualification
Declaration of conformity (CE)	The manufacturer declares compliance with the applicable directives, backed by a technical file.	EU import and distribution
SDS / MSDS	Material safety data: chemistry, hazards, handling, first aid, firefighting measures.	Transport, warehousing, insurer review
Dangerous-goods declaration & packing declaration	Class 9 lithium classification, UN number (UN3480 / UN3481), state of charge, packaging instruction.	Booking sea or air freight
CB test report / certificate	IECEE framework report that national schemes can draw on, reducing duplicate testing.	Multi-market programmes, tenders

Practical rule: ask for the test report, not just the certificate. A certificate is a one-page conclusion; the report shows what was actually tested, at what values, and on which sample.

How can you check a battery certificate is genuine?

Five checks take about ten minutes and catch almost every problem:

Lithium battery drop test report — Drop-test documentation — one of the mechanical abuse tests behind transport and safety approvals.

Check the certificate number against the issuing body. UL, TÜV, SGS, Intertek and most notified bodies maintain online directories. If the number does not resolve, treat the document as marketing material.
Check the scope matches your model. Read the model list, voltage window and capacity range. A certificate covering “48 V series, 50–200 Ah” does not cover 280 Ah.
Check the holder name. A certificate held by a trading company is not evidence that the factory making your packs was assessed. Ask whose site was audited and where.
Check the date and the standard version. Standards are revised (IEC 62619 and UL 9540A have both been updated). A report against a withdrawn version may no longer be accepted.
Check the laboratory accreditation. Look for an accreditation mark (ISO/IEC 17025) and, for tenders, that the accreditation is from the body named in the tender documents.

If a supplier cannot produce the underlying test report within a day, that is itself an answer. Legitimate reports are filed and retrievable; invented ones are not.

What safety tests stand behind these marks?

The abbreviations on a certificate refer to specific physical abuse of specific samples. Here is what is actually done to the cells.

UN38.3 — the eight transport tests (T1–T8)

Test	What is done	What it simulates
T1 Altitude simulation	Stored at a pressure of 11.6 kPa or less for at least 6 hours	Unpressurised aircraft cargo holds
T2 Thermal test	Cycled between +75 °C and −40 °C, 10 cycles	Desert to Arctic transit extremes
T3 Vibration	Sinusoidal sweep, typically 7 Hz to 200 Hz and back, 3 axes	Road and air freight vibration
T4 Shock	Half-sine pulse, peak acceleration 150 g / 6 ms (cells) or 50 g (packs)	Rough handling, drops in transit
T5 External short circuit	Short-circuited at 55 °C until the case temperature stabilises	Terminal contact during transport
T6 Impact / crush	15 mm bar crush to a defined force, or a 9.1 kg drop from 61 cm	Compression in a stack or collision
T7 Overcharge	Charged beyond the specified limit for a defined duration	Charger failure
T8 Forced discharge	Discharged to reverse polarity	Cell mismatch inside a series string

IEC 62619 — abuse tests for industrial packs

External short circuit at the pack terminals with protection devices in circuit.
Thermal abuse — exposure to elevated temperature (commonly 130 °C) and hold.
Overcharge at a defined multiple of the recommended current.
Drop of the complete pack onto a rigid surface.
Thermal propagation assessment in current revisions — can one cell going into runaway take its neighbours with it?

The propagation test is the one that separates a genuine industrial pack from a consumer assembly. It is also why two packs of identical capacity can have very different installation requirements.

What does IP65 actually mean for an outdoor battery?

The IP code has two digits. The first is protection against solid objects, the second against liquids. The numbers are not a scale you can average — each has a specific test.

Code	Solids (first digit)	Liquids (second digit)	Typical battery use
IP54	Dust-protected (limited ingress permitted)	Splash water from any direction	Sheltered outdoor, covered plant rooms
IP65	Dust-tight — no ingress in the 8-hour dust test	Low-pressure water jet (6.3 mm nozzle) from any direction	Outdoor cabinets, forklifts, marine decks, wash-down areas
IP66	Dust-tight	Powerful water jet (12.5 mm nozzle)	Exposed coastal sites, heavy wash-down
IP67	Dust-tight	Immersion to 1 m for 30 minutes	Locations with temporary flooding risk

CMX Battery IP65 30 kWh outdoor energy storage lithium battery — IP65-rated outdoor cabinet: dust-tight and resistant to low-pressure water jets.

Choose by the worst day, not the average one. An outdoor cabinet in a temperate climate still faces a pressure washer during maintenance and driving rain during a storm. IP65 is the usual floor for outdoor stationary storage; specify IP67 where standing water is plausible.

Remember what the rating does not cover: corrosion resistance, UV stability, gasket ageing, condensation inside a sealed enclosure, and thermal derating at high ambient temperature. An IP65 cabinet in direct sun still needs a thermal design — the seal that keeps water out also keeps heat in.

Nameplate, batch records and traceability

Certification only holds if the unit in front of you is the unit that was tested. That link is the nameplate and the batch record.

Product nameplate of a 48V 690Ah LiFePO4 forklift battery — Product nameplate: model, ratings and serial number used to trace the pack to its cell batch and test records.

What the nameplate should carry

Model designation and nominal voltage / capacity in Ah and kWh
Serial number, unique per unit — not per batch
Rated charge and discharge current, and the voltage window
Chemistry (LiFePO₄) and cell manufacturer where contractually agreed
Certification marks with the applicable standard versions
Manufacture date and, where required, the UN number (UN3480 / UN3481)

How the traceability chain works

Serial number → production work order → cell batch and incoming inspection data → the matching-record that shows which cells went into which pack → the end-of-line test report for that specific unit → the design-level certificate that covers the model. When a customer reports a field issue three years later, this is the chain that lets us identify whether it is one unit, one batch, or one design revision.

Ask any supplier to walk a serial number through this chain before you place a large order. The suppliers who can do it quickly are the ones who actually built the packs.

How do I get certification scoped for my market?

Step 1: Define the destination and the application

Name the destination country or port and the use case — grid-connected storage, off-grid, motive, UPS or telecom standby. The same pack needs different documents for each.

Step 2: List the documents your authority will actually demand

Pull the requirement from the AHJ, the utility interconnection rules or the tender document. Write down the standard version and, where stated, the required accreditation body.

Step 3: Map them against the certifications we already hold

We compare your list with our current file and report exactly what is already covered, what can be extended, and what needs new testing.

Step 4: Cost and schedule the testing scope

You receive the test items, sample quantity, laboratory and lead time as a costed line item. Reusing existing marks costs nothing; new market-specific testing is typically 6–14 weeks plus sample build.

Step 5: Build and submit samples

Samples are built on the production process, not on a bench, so the tested unit represents what you will actually receive.

Step 6: Receive the document package and update the nameplate

You get the reports, declarations and transport documents, and the nameplate is updated with the marks and standard versions before production starts.

Tell us the destination and the application. We will map the testing path and tell you what it costs and how long it takes before you commit.

Certification FAQs

Can you certify for our specific market?

In most cases yes, as a project cost. Tell us the destination and the application and we will scope the testing — which standards apply, how many samples are needed, which laboratory, and the lead time. You get that as a costed line item before you commit.

Are certificates issued in our company name?

For some standards yes, through a separate application. UL listings and several national marks can be held by the buyer or the importing entity; others — such as the UN38.3 test summary and ISO 9001 — belong to the design or the manufacturing site and cannot be transferred. We tell you which is which before you commit.

Do you provide UN38.3 for every shipment?

Yes. A UN38.3 test summary ships with every cross-border lithium battery order, at no extra charge. Carriers and customs require it for Class 9 dangerous goods, so we treat it as part of the shipment rather than an optional document.

What is the difference between a test report and a certificate?

A certificate is a one-page conclusion that a product type met a standard, bound to a model and a scope. A test report is the underlying laboratory data: sample description, photographs, test conditions and measured values. For technical review and tenders, ask for the report — the certificate alone will not answer a reviewer’s questions.

How long does certification for a new market take?

Using marks we already hold adds nothing to your schedule. New market-specific testing is typically 6–14 weeks, plus the time to build samples. National schemes that require in-country registration can add further time and should be planned before the shipping date, not after.

Can I use an existing certificate for a different model?

Usually not. Certificates are scoped to a model, voltage window, capacity range and BMS configuration. A 48 V 100 Ah rack certificate does not cover a 48 V 280 Ah rack from the same factory. Some schemes allow an extension with limited additional testing — we check the scope and tell you whether an extension or a new test is needed.

Does having UL 9540A mean the system passed?

No. UL 9540A is a test method that produces thermal runaway propagation data; it does not issue a pass or fail. Your authority having jurisdiction reads that data to decide clearances, sprinkler demand and whether units may be installed adjacent to each other. Two suppliers can both hold 9540A data and get different AHJ decisions.

Is CE a certificate issued by a laboratory?

No. CE is a declaration of conformity made by the manufacturer (or the importer placing the product on the EU market under their own name), supported by a technical file. A laboratory may produce the test evidence, but the declaration is a legal act by the declarant — which is why importers outside the EU need to understand that they may become the declarant.

What documents ship with a lithium battery order?

UN38.3 test summary, SDS/MSDS, dangerous-goods declaration and packing declaration with the UN number (UN3480 for batteries alone, UN3481 with or in equipment), plus the commercial documents. Safety certificates and declarations of conformity are provided per the destination requirements agreed at order stage.

Do you support the EU battery passport and carbon footprint requirements?

The EU Battery Regulation (EU) 2023/1542 phases in carbon footprint declarations, recycled content rules and a digital battery passport on a staged timetable that depends on product category. Tell us your category and intended date of placing on the market and we will confirm which obligations currently apply rather than giving you a generic answer.

Need a certification scoped for your market?

Certified, traceable, audit-ready supply. Share your destination and application and we will map the testing path before you commit. You will receive the applicable standards, the documents already covered, the test items needed, and the cost and lead time — as a written scope, not an estimate.