The most common question we hear from companies entering the EV charger market is some version of: “How much can we actually change?” They’ve seen private label programs advertised, they know ODM means customization, but they don’t know where the line is — what’s genuinely customizable, what’s locked for certification reasons, and what costs extra.
The answer is: you can change more than most buyers expect — but not everything, and not for free.
Customisation breaks down into four layers: hardware, software, packaging, and accessories. Each one has different costs, different timelines, and different limits. This guide walks you through every layer — so you know exactly what’s possible, what’s locked, and what’s going to cost you.
This guide breaks down each layer in detail — what’s possible, what it costs, what gets locked for safety or certification reasons, and the mistakes most first-time brand builders make when writing their customization brief.
This page is part of our Private Label EV Charger Complete Guide. For context on how customization fits into the broader ODM vs OEM vs white label decision, see our brand model comparison guide.
Does Customization Depth Really Matter for Your Brand?
Your customization choices directly determine your brand’s defensibility.
In other words: the more you customize, the more defensible your brand becomes — but the more it costs, and the more certification risk you take on.
Customization depth also determines your cost structure. Each layer adds NRE (Non-Recurring Engineering) cost — a one-time investment that gets amortized across your production run. Understanding which customizations are worth the investment for your specific market position, and which are not, is one of the most important strategic decisions in your ODM program.
Finally, customization depth affects your certification situation. Some hardware changes require partial re-testing. Some firmware changes require OCPP re-certification. Knowing this in advance prevents expensive surprises midway through your launch timeline.
Layer 1 — Hardware Customization (Enclosure and Industrial Design)
Hardware is everything you can see and touch. It’s where your charger goes from “generic white box” to “that’s our brand.”
What you can customize
Enclosure color (CMF — Color, Material, Finish)
Most ODM manufacturers offer color customization through RAL matching — you specify the exact RAL color code, and the enclosure is sprayed or injection-molded in that color. The depth of color options depends on the manufacturer’s tooling. Some offer full RAL custom matching; others offer a selection of standard colors with custom color available at higher MOQ or with new tooling.
Cost implications: Using an existing color in the manufacturer’s standard lineup costs nothing extra. A custom RAL color with new spray tooling typically adds USD 800–2,500 as a one-time NRE charge. If the color requires a new injection mold (for two-tone enclosures, for example), costs rise to USD 3,000–8,000.
Logo placement and application method
Four application methods are available, each with different cost, durability, and visual quality:
- Screen printing: cheapest, works on flat surfaces. Might fade in direct sunlight over a few years.
- Laser engraving: Permanent, premium finish, works on metal or hard plastic. No additional color — engraving reveals the material beneath. Most appropriate for minimalist brand identities.
- Embossed / debossed logo: The logo is raised or recessed from the enclosure surface. Requires mold modification — adds USD 1,500–4,000 to NRE. Results in a tactile, premium feel. Best for brands where the charger is visible in customer-facing environments (hotels, retail).
- Backlit logo: Logo cutout with LED backlighting behind it. High visual impact, particularly effective in low-light environments. Requires firmware integration to control the lighting behavior. NRE: USD 2,000–5,000 depending on complexity.
LED indicator customization
You can change the color sequence, the breathing pattern, and what the light does during idle, charging, or fault states — all in firmware, no tooling cost. The JOINT’s EVM002, for example, gives you full control over the LED behavior right in the ODM brief.
Cable color and length
Cable jacket color can typically be specified from a range of standard options (black, white, grey) at no additional cost, or custom-colored at a small MOQ premium. Cable length is configurable within the product’s specification range — typically 5m, 7m, or 8m for AC charging cables. Connector type (Type 2, CCS2, NACS) is determined by your target market and must align with the certified product spec.
Display screen customization
For charger models that include an LCD or e-ink display, the screen content — startup logo, idle screen design, status messaging language — is firmware-controlled and fully customizable. Physical screen size and position are fixed by the enclosure design. Changing screen size requires enclosure tooling modification.
What you cannot change in the hardware layer
The internal power electronics are locked. This includes:
- The power module and rectifier circuit
- The safety relay and earth fault protection circuitry
- The internal wiring harness architecture
- The connector interface board
These components have been tested and certified together as a system. Any modification — even seemingly minor — can affect the EMC behavior or safety performance of the unit and would require a full or partial re-test. A reputable ODM manufacturer will be explicit about this line.
Layer 2 — Firmware and Software Customization
Firmware and software customization is where brand builders can create the most differentiated user experience — without touching the hardware. This layer is also where the most common misunderstandings occur, because buyers conflate “OCPP customization” with “firmware customization” and don’t realize they’re different things.
What you can customize
Display UI and startup branding
The startup splash screen (your logo, displayed when the charger powers on), the idle screen design, and the on-screen text content are all firmware-controlled and fully customizable. Language localization — displaying the interface in your target market’s language — is also standard in most ODM programs. Specify your required languages in the ODM brief; most manufacturers support 10–20 languages as standard.
OCPP backend URL
This is one of the most practically important customizations and one of the most frequently overlooked. The charger needs to connect to a Charge Station Management System (CSMS) via OCPP. In an ODM program, you specify your CSMS endpoint URL — either your own platform, a third-party CSMS you’ve contracted with (ChargePoint, Hubject, Driivz, etc.), or the manufacturer’s platform if they offer one. This URL is configured in the charger firmware during production and can typically be updated via OTA after deployment.
Critical question to ask your manufacturer: Is the OCPP backend URL hardcoded, or can it be changed via OTA update without a factory reset? If it’s hardcoded, you’re locked to one CSMS for the life of the unit unless you re-flash the firmware in the field — which is expensive and operationally difficult at scale.
White-label mobile app
Most ODM manufacturers offer a white-label app. Slap your name, your logo, your colors on it — and users download “your” app from the store. Behind the scenes, the manufacturer’s platform handles authentication, payments, session management, and reporting.
What to check:
- Does it support the payment methods your market actually uses? (WeChat/Alipay for China, Stripe/Square for North America, Adyen for Europe.)
- Can you manage RFID cards through it?
- Can you export session data to your own billing system?
RFID access rules and payment gateway integration
Access control logic — who can start a charging session and how — is firmware-configurable. Options include: open access (no authentication), RFID card only, app-only, QR code, or combined methods. Payment terminal integration (NFC tap-to-pay, credit card reader, QR code) is model-dependent — not all charger hardware supports all payment methods. Specify your access and payment requirements before selecting a base model.
Load management parameters
For multi-charger installations, Dynamic Load Balancing (DLB) parameters — maximum site power budget, power allocation logic, priority rules — can be configured in firmware. In an ODM program, you can specify the default DLB behavior for your target installation type. For fleet depot operators, for example, you might want a specific load curve that prioritizes morning departure readiness over cost optimization.
What you cannot change in the firmware layer
The core OCPP protocol stack — the implementation of OCPP 2.0.1 or 1.6 — cannot be modified without risking your OCPP certification. The Open Charge Alliance (OCA) certifies specific firmware versions against specific OCPP profiles. If you modify the protocol stack, the existing OCA certification is invalidated and re-certification is required (typically 4–8 weeks and USD 2,000–5,000 through an OCA-approved test lab).
The safety logic — fault detection, emergency stop behavior, earth fault monitoring — is also fixed. This is not just a certification issue; it’s a liability issue.
Layer 3 — Packaging Customization
Before your customer ever plugs in your charger, they’ve already formed an opinion — based entirely on the box it came in.
For B2B buyers, unboxing is a trust signal. Good packaging says “this is a quality product” before they’ve even seen it. And if you’re shipping internationally, it also needs to survive sea freight.
What you can customize
Box design
Box customization is standard. You provide a print-ready design file (Illustrator or PDF) with your logo, brand colors, product photography or illustrations, and any required compliance markings (CE mark, ETL mark, recycling symbol). The manufacturer’s design team can produce a dieline template showing exact dimensions and bleed zones.
Material options: Corrugated cardboard (standard for most commercial EV chargers), rigid gift-box style (for premium retail or hospitality-targeted products), or a combination. Material choice affects shipping cost per unit and perceived quality.
User manual design and localization
The user manual is a required document for CE and ETL compliance — it must include safety warnings, installation instructions, and electrical specifications. In an ODM program, the manufacturer provides a base manual that meets certification requirements; you customize the design (cover, layout, fonts, imagery) and localize the language. If you’re selling in multiple markets, specify all required languages at the brief stage — adding languages after production has started typically requires a new print run.
Brand insert cards and accessories
Insert cards — warranty registration, QR code linking to your app, “welcome to your charging experience” messaging — are low-cost, high-impact brand touches. Specify these in your packaging brief. Also consider: does your product include a protective cover, a cable organizer, or a wall-mount template? These accessories can be co-branded and included in the standard box.
ISTA 6-Amazon packaging compliance
If you’re selling through Amazon or other e-commerce platforms, packaging must meet ISTA 6-Amazon standards — a drop, vibration, and compression test protocol that ensures the product survives Amazon’s fulfilment network without damage. This is a structural packaging requirement, not just a design requirement. Manufacturers with e-commerce experience will know this standard; confirm it explicitly if you’re planning an e-commerce channel.
What you cannot change in the packaging layer
One thing you can’t skip: CE marking, ETL listing marks, FCC/IC identifiers, and the manufacturer’s address (as the responsible party on the CE declaration) must appear on the product label or packaging in specific formats mandated by the relevant certification. You can design around these requirements, but you cannot omit them.
Layer 4 — Accessories and Peripheral Customization
Most buyers think about accessories last. End customers notice them first.
A charger on a generic grey pedestal with a cable hanging loose looks completely different from the same charger on a custom-branded pedestal with a tidy cable management system.
What you can customize
Pedestal and floor-mount design
For DC chargers and some commercial AC chargers, a floor-mounted pedestal is the standard installation method. Pedestal color, shape, and logo placement can be customized. Some manufacturers offer modular pedestal systems where the base, column, and charger mount are separate components — allowing mix-and-match of colors and configurations. JointCharging’s Modular Pedestal System (MPO) is designed specifically for this use case.
Wall-mount bracket
Wall-mount brackets for AC chargers are typically available in standard configurations (tilt angle, cable exit position, lock mechanism). Color can be matched to the charger enclosure. Custom bracket shapes require tooling — assess whether the visual benefit justifies the cost for your installation type.
Holster and cable management
The cable holster (the bracket that holds the charging cable when not in use) is a visible and frequently handled component. Custom holster designs — particularly for hospitality or retail installations where aesthetics matter — are achievable at moderate NRE cost. Cable management clips and routing channels can also be co-branded.
Protective cover and weatherproofing add-ons
For outdoor installations, additional weatherproofing accessories (cable inlet covers, protective cover for the connector socket, vandalism-resistant enclosure overlays) can be specified. These don’t affect the charger’s base IP rating (IP54 or IP65 depending on model) but add physical protection and visual coherence to the installation.
5 Things Almost Every Buyer Forgets to Spec
After reviewing hundreds of ODM customization briefs, these are the omissions that consistently cause delays, cost overruns, or disappointed results:
1. Not specifying the OCPP backend before production starts
The OCPP backend URL needs to be configured during firmware build — before mass production. Buyers who haven’t decided on their CSMS when they sign the production order end up with chargers that need to be re-flashed at arrival, or worse, deployed with a temporary backend they later need to migrate away from.
2. Forgetting to specify languages
If you’re selling in markets that require non-English display text (German, French, Dutch, Spanish, Arabic, etc.), these need to be in the firmware brief before production. Adding a language after mass production typically requires a new firmware build and a full re-flash of produced inventory — a significant cost and delay.
3. Over-customizing your first order
We get it — you want your charger to look perfect from day one. But going all-in on tooling modifications before you’ve proven demand is a gamble you don’t need to take. Start with the minimum customization needed to differentiate. Validate the market. Then invest in deeper customizations for generation two — based on what actual customers told you they want.
4. Not confirming tooling ownership in the contract
Any tooling — enclosure mold, logo embossing tool, pedestal mold — that you pay NRE for should be owned by you, not the manufacturer. This means it cannot be used for other customers’ products and must be handed over or destroyed if you switch suppliers. This needs to be in the contract, in writing, before the NRE invoice is paid. See our partner checklist for the specific contract language to require.
5. Ignoring packaging structural requirements for the distribution channel
A beautiful branded box that fails at Amazon’s ISTA 6 test gets your product flagged for FBA non-compliance. A box designed for palletized freight that’s sold through a distributor who breaks pallets into individual units arrives at the installer in a crushed box. Match your packaging spec to your actual distribution channel — not a hypothetical one.
How Much Does Customization Actually Cost?
| Customization | Layer | NRE Cost (One-time) | Recurring Cost Impact | Timeline Impact |
|---|---|---|---|---|
| Logo sticker / screen print | Hardware | USD 0–500 | Minimal per-unit add | None |
| Standard color selection | Hardware | USD 0 | None | None |
| Custom RAL color (spray) | Hardware | USD 800–2,500 | Minimal | 1–2 weeks |
| Embossed / debossed logo | Hardware | USD 1,500–4,000 | None after tooling | 3–4 weeks |
| Backlit logo | Hardware + Firmware | USD 2,000–5,000 | Small BOM add | 4–6 weeks |
| New enclosure mold | Hardware | USD 5,000–15,000 | None after tooling | 6–10 weeks |
| Display UI and startup logo | Firmware | USD 500–1,500 | None | 1–2 weeks |
| OCPP backend URL config | Firmware | USD 0–500 | None | None |
| White-label mobile app | Firmware / Software | USD 3,000–8,000 | Monthly platform fee possible | 4–8 weeks |
| Language localization | Firmware | USD 300–800 per language | None | 1 week per language |
| Box artwork design | Packaging | USD 500–1,500 (design) | None after tooling | 2–3 weeks |
| Custom branded manual | Packaging | USD 300–800 | Per-unit print cost | 1–2 weeks |
| Custom pedestal design | Accessories | USD 3,000–10,000 | None after tooling | 6–8 weeks |
How to read this table: NRE costs are one-time investments. Once tooling is made, it belongs to you (if contracted correctly) and adds nothing to subsequent production orders. The recurring cost impact — where it exists — is typically a small per-unit BOM addition.
Budget your total first-order cost as: (unit price × MOQ) + sum of NRE costs + certification costs + logistics.
For the complete cost model including certification and logistics, see our ODM MOQ, cost, and lead time guide.
Key Takeaways
- Four layers — hardware, software, packaging, accessories. Each one has different costs and limits.
- Don’t touch the electronics inside. Change the power module or safety relay, and you’re re-certifying.
- OCPP protocol stack is also locked. Tweak it, and you lose your OCPP certification.
- NRE is one-time. You pay it once. But make sure you own the tooling in writing.
- Three things everyone forgets: OCPP URL, languages, and packaging specs.
- Start small. Minimum customization for your first run. Save the big investments for gen two, when you know what customers actually want.
Next Steps
With your customization scope defined, the next question is certification — specifically, whether you need your own or can work under the manufacturer’s. See our EV charger certification guide for private label brands for the full breakdown of shared certification, transfer, and fresh filing options by market.
Ready to discuss an ODM program? JointCharging offers full customization across all four layers for AC EV chargers and DC fast chargers (30–400 kW), with in-house Intertek and SGS satellite testing for CE and ETL certification. Contact us with your brief and we’ll provide a customization cost estimate within 5 business days.
Frequently Asked Questions
Can I order just one or two units to test before committing to a full order?
Yes — most manufacturers offer sample units. For white-label products, samples are usually available immediately. For ODM programs, samples are typically available 6–8 weeks after spec sign-off, once the first pilot run is complete. The cost is usually the unit price plus shipping.
If I change manufacturers later, can I take my customizations with me?
It depends on your contract. The tooling (molds, embossing tools, etc.) — you can take it with you if you own it. But firmware customizations are harder to transfer — different manufacturers use different hardware architectures, so code written for one won‘t work on another. This is why many buyers wait to invest in deep firmware customization until they’ve validated both the market and the manufacturer relationship.
Can I change the enclosure shape on an ODM EV charger?
Yes — but it requires new tooling (mold modification or a new mold entirely), which adds USD 5,000–15,000 in one-time NRE cost and 6–10 weeks to the development timeline. For most brand builders, this level of customization is only justified for the second-generation product once market demand is proven. The first ODM order typically uses the manufacturer’s existing enclosure shape with custom color and logo.
What is an NRE fee and when does it apply?
NRE stands for Non-Recurring Engineering — a one-time charge covering the engineering and tooling work needed to produce your customized version of a product. It applies whenever a new mold is created, new firmware features are developed, or a new design file is produced specifically for your product. NRE is paid once and does not recur on subsequent orders of the same SKU. Always confirm what specific deliverables each NRE line item covers before paying.
Can I use my own CSMS backend with a private label EV charger?
Yes — this is one of the key advantages of OCPP-certified chargers. You specify your CSMS endpoint URL in the ODM brief, and the manufacturer configures the charger firmware to connect to your backend during production.
Confirm two things:
(1) that the manufacturer’s charger holds OCA OCPP 2.0.1 certification (not just “OCPP 2.0.1 ready”), and (2) that the CSMS URL can be updated via OTA after deployment if you need to change platforms later.
Does firmware customization affect my OCPP certification?
It depends on what you change. Cosmetic firmware changes — startup logo, display UI, language localization, LED pattern — do not affect OCPP certification. Changes to the OCPP protocol stack itself, or to the security and authentication logic, would require re-certification through an OCA-approved test lab. Always confirm with the manufacturer which firmware changes are within the certification boundary and which require re-testing.
Do I own the tooling I pay for in an ODM program?
You should — but only if it’s explicitly written in your contract. A standard ODM agreement may not automatically grant you tooling ownership. Before signing, ensure the contract states that all tooling produced using your NRE payments is your property, that it cannot be used for other customers’ products, and that it will be transferred or destroyed if the commercial relationship ends. See our partner checklist for the specific clauses to include.
