EV Charger ODM vs OEM vs White Label

Certification: the part that is decided by law, not by contract

Under EU product law, the party that places a product on the market under its own name or trademark takes on the manufacturer's obligations — the EU declaration of conformity, the technical documentation and the CE marking. The Blue Guide on the implementation of EU product rules (2022/C 247/01) is explicit that a person who markets a ready-made product under their own name or trademark is treated as the manufacturer, and Regulation (EU) 2019/1020 requires a responsible economic operator established in the Union for products subject to CE marking. This holds in all three sourcing models. It is not something a supply contract can transfer.

What the contract can do is decide who performs the work and who holds the evidence. The practical questions to settle in writing are: which directives and harmonised standards the product is assessed against; who commissions and pays for the test-house campaign; whether the test reports are issued in the brand's name or the supplier's; whether the brand receives the full technical file or a summary; and what happens to the file if the supplier relationship ends. A brand that takes delivery of certified hardware but not of the technical documentation has an obligation it cannot discharge.

For EV charging equipment in the EU, the assessment normally covers the Low Voltage Directive 2014/35/EU and the EMC Directive 2014/30/EU, and the Radio Equipment Directive 2014/53/EU where the unit contains a cellular modem, Wi-Fi or NFC. eectec's AC platforms hold CE certificates under those three directives, covering EN IEC 61851-1:2019, EN IEC 61851-21-2 and the radio suite ETSI EN 301 489, EN 301 908, EN 300 330 and EN IEC 62311; we manage the test-house process for a customer's variant, and the resulting file belongs to the brand that puts the product on the market.

Seven questions to ask before the model is fixed

• Which parts of this platform are reused and which are new? The answer predicts both the certification risk and the schedule. A supplier that cannot draw that line is quoting a development project as if it were a catalogue order.
• What is the protocol status, in writing? A version running in volume, a version in development and a version certified by a third party are three different claims. eectec's position: OCPP 1.6 runs in large-scale commercial operation, OCPP 2.0.1 support is in final development with first delivery scheduled for December 2026, and we hold no Open Charge Alliance certificate for either version.
• Who holds the test reports and in whose name are they issued? See the certification section above; this determines whether you can discharge your own obligations.
• What happens to firmware after launch? Agree the change-management process, the notification period for a component change, and who may issue firmware to installed units.
• Is the same product sold to others? A direct question with a checkable answer. It sets the boundary between ODM and white label.
• What is transferable if we bring assembly in-house later? Test programmes, fixtures, documentation and training either move to your line or they do not. See full import vs SKD assembly in Europe.
• Can we audit the factory? The answer is either yes with a date, or it is a different answer.

Questions we are asked about this

What is the difference between ODM and OEM for EV chargers?

In an OEM arrangement the brand owns the product design and the manufacturer builds to that design; the brand pays for development and tooling and carries the technical risk. In an ODM arrangement the manufacturer owns a base platform, adapts it to the brand's requirements and manufactures it under the brand's name; development is faster and cheaper because the platform already exists, and the brand accepts the platform's architecture. White label is the shortest form of ODM: an existing finished product is rebadged with limited or no change.

Who owns the CE certification when a charger is manufactured by a supplier?

Under EU product law, whoever places the product on the market under their own name or trademark takes on the manufacturer's obligations, including the EU declaration of conformity and the CE marking. That is set out in the Blue Guide on the implementation of EU product rules (2022/C 247/01). In practice this means the brand owner is the manufacturer in the regulatory sense, even when a supplier designed and built the unit, and must hold the technical documentation and test reports.

At what volume does OEM become more economical than ODM?

The crossover is driven by non-recurring cost, not by unit price. A full OEM programme carries the cost of development, tooling, type testing and a separate certification campaign, which has to be amortised over the units actually shipped. ODM on an existing platform removes most of that non-recurring cost and shortens development to roughly 3 months for an AC controller and 4 months for a DC controller. Below a few thousand units per model, non-recurring cost usually dominates, which is why most European charging brands start on an ODM platform and move design in-house only where a specific feature justifies it.

What are typical minimum order quantities for EV charging hardware?

eectec's minimum order quantities are 300 sets for standard controller boards, 1,000 sets for custom board designs, 500 units for AC chargers, 100 units for DC chargers, and 20 units for charging stacks and storage-integrated systems. Serial production lead time is 45 days. A custom board design carries a higher minimum than a standard board because the non-recurring engineering and the qualification run have to be covered.

Is white label a safe way to enter the EV charging market?

It is the fastest way and the least differentiated one. The commercial risk is that competitors can source the identical product, so the brand competes on price and service rather than on the product. The regulatory risk is that rebadging makes the brand the manufacturer under EU product law, so the brand must obtain and keep the technical file, test reports and declaration of conformity for a product it did not design. Both risks are manageable, but they should be priced in before the first order.

Can we start white label and move to ODM later?

Yes, and it is a common sequence. The transition is easiest when the white label product already sits on the platform you would customise, because the certification baseline and the service documentation carry over. It is hardest when the rebadged product came from a different platform, since the second programme is then a new development with a new test campaign. If a later move is likely, ask at the outset which platform the white label unit is built on.

Does an ODM supplier own our firmware customisations?

That depends on what the contract says, and it should say something. The workable split in practice is that the supplier retains the platform stack and the brand owns the configuration, behaviour definitions, branding and any module developed and paid for specifically. Settle it before development starts, together with escrow or source access terms in the event the relationship ends.

How many suppliers should we qualify?

For a single model, one supplier and a documented second source for critical components is the common arrangement; dual-sourcing an entire charger duplicates the certification campaign, because the technical file is specific to the product as built. Where dual sourcing matters most is in the components with long or volatile lead times, which is a question to put to the supplier's purchasing organisation rather than to its sales team.

Which model gives the shortest time to a working sample?

White label supplies an existing unit immediately; an ODM programme on an existing platform reaches working samples for lab and field validation within the 3-month AC and 4-month DC development cycle; a ground-up OEM design takes longer and the schedule depends on the scope of new power electronics. If a tender deadline is the binding constraint, the platform question should be settled in the first technical call, not after the commercial terms.