Two quotes for what looks like the same private-label EV charger can differ a lot. The gap rarely comes from one line item. It comes from a series of specification choices, some visible and some buried in the bill of materials, plus the way certification, packaging and freight are handled.
This article walks through the factors that move the unit cost of an OEM charger so you can compare quotes on equal terms. It does not give prices, because they depend on the exact specification and order. For the wider context, see our guide to OEM and private-label EV chargers.
Start with the full cost picture
A useful way to read any quote is to split it into four layers: materials, conversion (labour, testing and overheads at the factory), compliance (certification and documentation), and landed cost (packaging, freight, duties and handling). A low ex-works number can hide a higher landed cost, and the reverse is also true.
Ask suppliers to quote the same specification sheet, the same Incoterm and the same quantity. Without that, comparisons are guesswork. If you are still choosing a factory, our article on how to choose a portable EV charger supplier covers what to ask first.
Copper, cable and current rating
Cable is usually the largest single material cost in a portable or tethered charger, and most of that cost is copper. Copper is a traded commodity: the London Metal Exchange copper contract sets a reference price in US dollars per tonne, and the U.S. Geological Survey’s Mineral Commodity Summaries 2026 for copper reported a projected record average COMEX price in 2025, about 14% above 2024. Suppliers pass these movements through, which is why cable-heavy quotes are often valid for a short period only.
Three specification choices multiply the copper effect:
- Current rating. A 40 A charger needs a larger conductor cross-section than a 32 A or 16 A model, and the plug, relay and terminals scale with it.
- Cable length. North American buyers often choose 25 ft or 28 ft; elsewhere about 5 m or 7.5 m is common. Every extra metre adds copper and jacket material.
- Phases. A three-phase Type 2 cable carries more conductors than a single-phase one.
Jacket material and temperature rating also matter. A cable that stays flexible in cold weather costs more than a basic one, and it is worth paying for in Canada or northern Europe.
Connector, grid plug and enclosure
The vehicle connector (NACS under SAE J3400, J1772 or Type 2) and the grid plug (for example NEMA 14-50P, CEE/IEC 60309 or Schuko) are bought-in or molded parts with their own certification history. Choosing a plug that the factory already uses on certified models is usually cheaper than introducing a new one. Our article on choosing plug, cable and connector by market explains the options.
The enclosure is the next lever. A standard housing with your logo and colours uses existing molds. A fully custom shape needs new tooling, longer validation and possibly new certification testing. Higher ingress protection, thicker walls and UV-stable plastics for outdoor use add cost as well; see IP ratings for EV chargers for what each level means.
Electronics and features
The control board decides much of the price difference between a basic and a premium charger. Typical cost drivers include:
| Feature | Why it adds cost | Ask the supplier |
|---|---|---|
| Residual current protection | Sensing parts and test circuitry | Which protection functions are built in? |
| LCD display and custom boot logo | Display, driver and firmware work | Is the graphic a one-time set-up? |
| Adjustable current | Buttons or app control plus firmware | Which current steps are supported? |
| Wi-Fi, Bluetooth or app control | Radio module, radio testing, app upkeep | Is the app white-label, and who hosts it? |
| Energy metering | Measurement parts and calibration | What accuracy is claimed and tested? |
| Temperature sensing in plug | Extra sensor and wiring | Where are sensors placed? |
Each feature also adds firmware and test time. A smart model needs radio testing in each market, which a basic model does not.
Certification, branding and packaging
Certification costs are paid once per model and configuration, then spread across the units you buy. A model that already holds the right certificates is much cheaper to bring to market than one that needs a new test program. Certification marks vary by model, so request the certificate and test report for the exact configuration you are quoting. Our overview of EV charger certifications lists the main schemes.
Branding is cheaper than most buyers expect when it uses standard processes: a logo on the housing, cable print and a branded box. Costs rise with custom colours that need new material batches, printed manuals in several languages, rigid gift boxes and accessories such as custom EVA hard-shell storage cases. Order quantity matters here, because printing plates and packaging set-up are fixed costs. Read EV charger MOQ explained for how quantity and set-up costs interact.
Freight, duties and the Incoterm
Chargers are heavy for their size because of the cable. Carton dimensions, units per carton and pallet layout change freight cost per unit more than many buyers expect. Ask for the packed weight and carton size with every quote.
Under FOB you arrange and pay main freight, insurance and import clearance; under DDP the supplier quotes a delivered price. Our comparison of FOB vs DDP explains the trade-off. For the United States, import duty depends on the classification you or your broker determine, which you can research in the Harmonized Tariff Schedule published by the U.S. International Trade Commission. U.S. Customs and Border Protection also advises importers to become familiar with the applicable laws and regulations. Confirm classification and duty with a licensed customs broker before you set retail prices.
How to compare quotes fairly
- Send one written specification: current, cable length and type, connector, grid plug, features and packaging.
- Ask which certificates already cover that exact configuration and which would need new testing.
- Request the same Incoterm and quantity tiers from every supplier.
- Ask how long the quote is valid and whether copper is indexed.
- Check warranty terms, since a longer warranty is a real cost for the factory.
EVDANCE quotes private-label chargers from an MOQ of 50 units, with a 3-year standard warranty and FOB or DDP shipping. To get a quote built on your specification, start with our OEM and ODM program or send us your brief.
Key Takeaways
- Copper in the cable is often the largest material cost, so current rating, cable length and phase count move the price most.
- Reusing certified connectors, plugs and housings is cheaper than introducing new parts that need new tooling or testing.
- Smart features add hardware, firmware, radio testing and app upkeep, not just a module cost.
- Compare quotes only on the same specification, quantity and Incoterm, and confirm duties with a customs broker.
Sources & Standards
- U.S. Geological Survey — Mineral Commodity Summaries 2026: Copper
- London Metal Exchange — LME Copper contract specifications
- U.S. International Trade Commission — New HTS Search Tool Available
- U.S. Customs and Border Protection — Basic Importing and Exporting
