“Commercial EV charging station manufacturers” is not one shortlist — it is two. AC and DC charging differ in duty, in what a failure costs, and in the evidence that proves a supplier, so each line deserves its own scorecard, even when a single company offers both. This framework shows what to score on each track, which documents back each score, and how to choose between one supplier and two specialists.
Key Takeaways
- Evaluate AC and DC suppliers on separate scorecards; a combined checklist hides the weak track.
- Every score rests on a document: certificates, test reports, warranty text, change-control rules.
- Consolidate to one supplier only when both tracks clear the bar independently.
- There is no ranking behind this method — the evidence pack decides.
Why One Scorecard Fails
AC stations serve long dwell times — workplaces, hotels, fleets parked overnight — so buyers deploy many points and judge cost per connector and how painless a failed unit is to swap. DC stations serve short turnarounds, concentrate expensive power electronics in few cabinets, and earn their keep on uptime: one failed unit is lost sessions and a service event. A combined checklist averages the two, and the average hides what matters — a supplier excellent at high-volume AC hardware may have a thin DC service story.
The Two-Track Scorecard
| Criterion | AC track evidence | DC track evidence |
|---|---|---|
| Certification | Certificate and test report naming the exact AC model and plug version | Certificate and test report naming the exact DC model; DC paperwork never covers AC models |
| Power design | Stated output per connector, and how shared power divides between connectors | Module configuration, and what happens to output when one module fails — answered in writing |
| Backend | OCPP version as stated; user access (RFID, app) as listed | OCPP version as stated; the fault reporting and uptime records the platform produces |
| Field support | Spare cables and connectors available; a defined swap-out process | Spare modules and a service response defined in the supply terms |
| Change control | Written notice before component or firmware changes | The same rule — plus how a change is re-certified before it ships to you |
Score each cell on documents received, not on sales answers. A cell with no document is a failed cell, whichever track it sits in.
One Supplier for Both Tracks, or Two?
One supplier means one contract, one documentation habit and one backend relationship. It is the right call only when both tracks clear their own scorecards; a strong AC line must not be allowed to carry a weak DC line through on the same signature. Two specialists cost you a second vendor relationship and possibly a second backend, but each was chosen on the evidence its track actually needs. The deciding question is narrow: does the weaker track still clear your evidence bar on its own? If yes, consolidate. If not, split the award.
The Evidence Pack to Request
- Certificates and test reports per model — for every model you intend to buy, on both tracks.
- Specification sheets per model, matching the certificates by model name.
- The warranty document itself, not a summary of it.
- A spare-parts list with the supply terms that govern it.
- The change-notification rule in writing, including re-certification after changes.
- Backend documentation for the stated OCPP version.
Verify the pack on site with our factory audit checklist for importers, and check how listing works through our guide to UL and ETL listing for EV chargers.
EVDANCE Across Both Tracks
EVDANCE builds on both tracks: the EV-AC03201T dual-connector AC station — two Type 2 connectors, up to 43 kW shared (22 kW per connector), OCPP 1.6J, RFID, IP54 — and the EV-RHDC30K-L compact DC fast charger at 22 kW DC, OCPP 1.6J, IP54. EVDANCE is a Shenzhen manufacturer founded in 2011, exporting to more than 30 countries, with private label from 100 units and a 3-year standard warranty. Put us through both scorecards: start from the commercial charging solutions page or contact us for the evidence pack.
Frequently Asked Questions
Can one manufacturer be strong in AC and weak in DC?
Yes. The two lines use different power electronics and different service models. Strength in one is no evidence about the other, which is why each track is scored on its own documents.
Which track matters more for a workplace or hotel site?
Most workplace and hotel dwell time suits AC, so the AC track usually carries the project; DC enters where vehicles must turn around quickly. Score the track you will actually deploy first.
What if a supplier will not share test reports?
Score the affected cells as failed. An NDA may reasonably protect some detail, but a supplier who will not document the certification of the model it sells has answered the key question.
Related Reading
- Chinese EV Charger Manufacturers: Factory, Trading Company or Marketplace Seller?
- EV Charger Factory Audit Checklist for Importers
- UL and ETL Listing for EV Chargers: How NRTL Certification Works
- How to Choose a Portable EV Charger Supplier: A B2B Checklist for Importers
