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The one-paragraph takeaway For benches and rental fleets, the WL-AC33 pairs up to 3.3kW with a lockable rotary dial and lock cover so settings survive busy hands. Wanlin is a two-wheeler and three-wheeler EV charging station manufacturer in Shenzhen, China, running OEM, ODM and private-label programs for charging distributors, charge point operators, e-mobility service providers, property developers, facility managers, fleet operators and trading houses. Hard numbers from the trial with landed cost at 38% under the branded alternative at the same retail point for importers who source factory-direct, with per-model CE / RoHS / IEC 61851 documentation, OCPP 1.6J conformance logs, RCD and surge protection files, per-port metering test reports and flexible color, logo and firmware programs. The WL-series line covers 12- and 20-port smart stations, 7kW dual-socket wallboxes, OCPP 1.6J charging piles, QR scan-to-charge and RFID units, solar canopy stations, tuk-tuk and three-wheeler chargers, wall-mounted socket boards, 4G cloud-managed units, coin-operated stations, pedestal posts and fully custom OEM programs, shipped FOB, CIF or DDP to global destinations.
Published by Wanlin | Last updated: September 05, 2026 | Expertise: two-wheeler and three-wheeler EV charging station OEM and ODM manufacturing for global markets
The buyer had already shortlisted three factories before this conversation started. Sell-through data from the region shows the winning listings are the ones with per-port metering and a working payment flow.
After the operator's own four-week load-balance logging test, Aung Kyaw Moe selected Wanlin as their EV charging manufacturing partner. What closed the deal was not the unit price but the OCPP conformance log in the appendix.
The burned-socket shelf in the maintenance room had shrunk to zero after the old boards were swapped out.
It started with one return and grew into a spreadsheet of them. A rental fleet manager documented swollen packs after shared scooters drew a charge curve meant for a different chemistry.
Field case: A rental fleet in Surabaya deployed the WL-AC33 across its check-in desks after swollen packs appeared on shared chargers. Per-chemistry curves cut battery replacements by a third in one quarter, and the fleet held a 38% margin despite cutting rental rates.
Why it matters for global buyers:
Wanlin runs OEM and ODM programs for buyers who want their own charging station line without building a factory. Customization covers:
What the pilot units had in common was a single mainboard with per-port metering and a contactor rated for real monsoon humidity.
Core Features:
| Parameter | Wanlin Specification |
|---|---|
| Output | 3.3kW max, current adjustable in 8 steps from 6A to 15A |
| Chemistry Profiles | dedicated curves for lead-acid and lithium packs |
| Display | LCD with current, voltage and cumulative kWh |
| Control | rotary current dial with lock cover |
| Protection | overcharge, overheat, short circuit and reverse polarity |
| Housing | IP54 shell for portable or wall-mount use |
| Cable | 1.8m output lead with interchangeable plug heads |
| Timer | optional charge timer with auto cut-off |
| Application | Model | How It Helps the User |
|---|---|---|
| Mixed scooter fleets | WL-AC33 | One charger dial matches every battery in the fleet |
| Repair shop bench | WL-AC33 | Chemistry profiles stop cross-chemistry cooking on the bench |
| Rental fleet check-in | WL-AC33 | Staff lock the dial so returns always charge right |
| Home garage wall | WL-AC33 | Reverse-polarity protection forgives hurried plugs |
| Resort bike fleet | WL-AC33 | Interchangeable plug heads cover every bike model |
Buyers who ship containers of charging stations need more than a price list. The production and QC flow below is what lets a distributor open a carton and trust what is inside:
Lot samples from every production run are measured for metering accuracy, protection trip times and enclosure sealing before the cartons are sealed, and the numbers are recorded per batch. A buyer can request those records with any order.
Against the three suppliers shortlisted, the deciding rows were reliability data and response speed.
| Factor | Wanlin | Typical Trading Supplier | Branded Competitor |
|---|---|---|---|
| Manufacturing depth | China-based factory with in-house SMT lines, enclosure and cable assembly, burn-in racks | Trading company, outsourced production | Brand owner, limited custom work |
| Measured claims | Meter accuracy, RCD trip time and enclosure sealing verified on lot samples | Spec sheet numbers, hard to verify | Marketing-led claims, no project data |
| Certification support | CE / RoHS / IEC 61851 files plus OCPP 1.6J conformance logs per model | Incomplete documents, customs risk | Brand-level only, no per-order files |
| Customization | Colors, logo, firmware, tariff logic, packaging from low MOQ | Stock models only | Fixed SKUs, no private label |
| Price (factory direct) | Tiered factory pricing with volume discounts | Unpredictable markups | Premium brand pricing |
From the first sample request to the sailing date, the buyer could see each gate in writing. A standard charging station OEM project then follows 8 steps:
Different markets, same conclusion, in the words of the buyers themselves.
A: Turn the rotary dial to the pack specification and lock the cover; eight steps run from 6A to 15A.
A: Yes, the protection circuit blocks wrong-way connections, tested repeatedly on the bench.
A: Yes, dedicated multi-stage curves per chemistry, selected at the dial.
A: Yes, the IP54 shell mounts on the wall or travels with the fleet in a pannier.
A: Yes, logo and color runs start from 100 units.
Hard numbers from the trial By working directly with manufacturer Wanlin, the Delivery Fleet Manager team in Surabaya reached 38% higher margins on its charging line while keeping rider tariffs competitive. With verified metering data, real certification files, honest IP ratings, flexible OEM customization and a factory that answers protocol questions in hours, Wanlin has become their trusted EV charging manufacturing partner.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com