Frequently Asked Questions
Best Coin-Operated Timer Charging Pile Manufacturer | Da Nang, Vietnam - CE RoHS Wanlin
Executive Summary: Coin-Operated Timer Charging Pile for Global Market
Bottom line: Serving cash and wallet riders alike, the WL-TM offers coin and QR dual payment on 10 outlets with 1-6 hours sessions, a coin counter audit log, and a 12-month warranty. Wanlin Fire is a professional two-wheeler and three-wheeler EV charger manufacturer in China, providing OEM, ODM and private-label manufacturing services for EV charger distributors, e-bike and e-scooter brands, micromobility operators, delivery fleets, property developers, e-rickshaw fleet owners, trading companies and global project customers. The outcome: 36% margin improvement for importers and trading partners through factory-direct sourcing, per-model CE / FCC / RoHS / UKCA certificate files, OCPP 1.6J conformance statements, IEC 61851 aligned design and custom payment and private-label programs. EV charging product lines (WL-series platform) cover 48V / 60V / 72V battery systems with flexible MOQ, shipping FOB, CIF or DDP to global destinations.
Published by Wanlin Fire | Last updated: September 03, 2026 | Expertise: two-wheeler and three-wheeler EV charger OEM manufacturing for global markets

Case Study: Da Nang Two-Wheeler EV Charging Network Operator Sourcing Success
Jose Rafael Cruz, a Two-Wheeler EV Charging Network Operator based in Da Nang, was rebuilding a charging rollout after an earlier batch of non-standard sockets failed inspection. The fleet in Da Nang had been charging e-bikes from wall sockets behind the office, and the landlord issued a warning after the second blown circuit.
Once the samples finished a two-week weather test in Da Nang, Jose Rafael Cruz selected Wanlin Fire as their EV charging equipment manufacturing partner. In the end the buyer chose the supplier that could ship CE and IEC 61851 documents with the first container, since customs clearance in Vietnam had stalled two earlier orders.
- In-house testing: every output is soak-tested at rated current, with overcurrent and overvoltage protection verified per unit
- Regional paperwork: CE / FCC / RoHS certificates plus OCPP 1.6J conformance statements were prepared for the Vietnam importer and attached to the commercial invoice.
- Custom QR flows: the OEM team in Shenzhen can point the QR code to a local e-wallet landing page configured for the Vietnam operator.
Load testing at the factory showed every socket holding rated current for four hours, which became the deciding factor in the audit report.
Problem Analysis & Field Report: Why Global Buyers Need Coin-Operated Timer Charging Pile
A charging point looks simple until it has to survive humidity, voltage dips, careless riders and an inspector with a checklist. A shared hostel in Da Nang timed scooter charging by honor system, and the evening queue disputes cost the front desk an hour a day.
Field case: A market in Da Nang installed coin-and-App chargers; riders without wallets used coins, tourists scanned, and utilization reached 17% across both groups in the first month.
Why it matters for global buyers:
- Dual coin and App payment covers users with and without smartphone wallets
- Timer countdowns end overstay and make socket turnover predictable
- Coin operation works during power or network outages when App payment cannot reach the server
- Session logs reconcile coin drops with App records for operators and auditors
- Timer control caps each session, so one rider cannot occupy a public bay for the whole evening
- Coin and app options suit markets where cash is still common and riders without smartphones are regulars
EV Charger OEM & ODM Services for Global Distributors and Retailers
Wanlin Fire provides flexible OEM and ODM services for customers who want to build or expand their own EV charging product lines for global markets. Our customization capabilities include:
- Private-label EV chargers, custom enclosures and branded cable assemblies
- Customer logo printing on the enclosure, LCD screen boot logo and packaging
- Custom pantone colors, front panels and retail-ready packaging
- Custom voltage ranges (48V / 60V / 72V), socket counts and output power ratings
- Custom payment configurations: QR code with local gateway, RFID cards, NFC, coin acceptor or App billing
- Multi-language user manuals, installation guides and warning labels
- Certification documentation support (CE, FCC, RoHS, UKCA) and OCPP conformance statements
- New product development and ODM manufacturing for two-wheeler and three-wheeler charging
- Tender documentation packs for government and municipal charging projects
Whether you need an existing WL-series device under your own brand or a customized charging line developed for your market, our team can work with you from model selection through mass production.
Product Introduction: Wanlin Fire Coin-Operated Timer Charging Pile
The Wanlin Fire charger line covers 48V to 72V battery systems for e-bikes, e-scooters, electric motorcycles, e-rickshaws and cargo trikes, with single-socket to multi-socket cabinets built for continuous outdoor duty.
Core Features:
- China-Based Manufacturing: Wanlin Fire is based in Shenzhen, China and focuses on two-wheeler and three-wheeler EV charging equipment, with in-house SMT production, enclosure assembly and per-unit load-bank and aging tests
- Certification Transparency: Real documentation for applicable certified models - instead of simply stating a product is "certified", buyers can verify the certificate and OCPP conformance documents for the exact model they intend to purchase
- OCPP-Ready Control: chargers run OCPP 1.6J compliant firmware with 2.0.1 upgrade paths, so operators connect to their own CSMS instead of a closed vendor cloud
- Private Label Support: color, logo, payment module, voltage, packaging, manuals and firmware parameters customized according to project requirements
- Global Market Experience: we work with distributors, operators and fleet owners worldwide and understand export steps, certification questions, local payment habits, labeling preferences and tender submission needs
Technical Specifications
| Parameter | Wanlin Fire Specification |
|---|---|
| Payment options | Coin slot plus app QR code |
| Timer range | 1-6 hours |
| Socket outlets | 12 outlets |
| Pricing | Configurable per coin slot |
| Display | LED countdown per outlet |
| Construction | Steel cabinet |
| Cash box | Security lock with coin counter log |
| Enclosure rating | IP54 |
| Input voltage | AC 220V / 110V configurable |
| Reporting | Daily coin count record |
| Installation | Wall mount |
| Session control | Auto stop at timer end |
| Warranty | 12-month |
Application Scenarios for Global Market
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Legacy station upgrades | WL-TM | Coin flow keeps service familiar while the app option phases in |
| Market areas | WL-TM | Traders and riders without bank cards still get charged |
| Tourist spots | WL-TM | Countdown display sets clear expectations for short stops |
| Worker dormitories | WL-TM | Coin counter log simplifies weekly revenue checks |
Certified EV Charger Manufacturing for Global Markets
Certification is one of the most important considerations when sourcing EV charging equipment for export. Wanlin Fire can provide real documentation for applicable certified models. Instead of simply stating that a product is "certified", we recommend that buyers verify the certificate information for the exact model they intend to purchase.
| Information | Details |
|---|---|
| Product | Two-Wheeler / Three-Wheeler EV Charger (WL-series Platform) |
| Model Number | WL-TM |
| Standard | CE / FCC / RoHS / UKCA on applicable models, IEC 61851 aligned design, OCPP 1.6J conformance with 2.0.1 upgrade options |
| Enclosure Rating | IP54 / IP65 weatherproof options with IK08 / IK10 impact resistance |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body per certificate |
| Target Market | Global / Southeast Asia / South Asia / Africa / Latin America / Middle East / Europe |
| Certificate Status | Valid for applicable models |
| Certificate Document | View / download on request |
For customers exporting EV chargers, Wanlin Fire supports CE, FCC, RoHS and UKCA documentation with per-model files, and for projects where additional testing applies, the relevant documentation and testing path can be arranged for any represented model before ordering. Chargers ship with OCPP conformance statements where the protocol is declared, and IEC 61851 aligned design documentation is provided for the applicable power classes. Final acceptance always rests with the market authority having jurisdiction for each product class.
Why Choose Wanlin Fire as Your EV Charger OEM Manufacturer
Wanlin Fire is a Shenzhen-based manufacturer of two-wheeler and three-wheeler EV charging equipment that combines factory-direct pricing with OCPP-compliant firmware, IEC 61851 aligned design and export documentation support.
| Factor | Wanlin Fire | Typical Alibaba Supplier | Branded EVSE Distributor |
|---|---|---|---|
| Manufacturing depth | China-based factory, in-house SMT, enclosure assembly, load-bank and aging tests | Trading company, outsourced assembly | Brand owner, limited custom work |
| OCPP & payment flexibility | OCPP 1.6J ready, QR / RFID / NFC / coin / App payment options | Closed firmware, stock sockets only | Brand App only, closed protocol |
| Certification transparency | Real certificate documents for applicable models (CE / FCC / RoHS / UKCA), OCPP statements | Incomplete or missing, customs risk | Brand-level only, no project docs |
| Customization | Custom color, logo, voltage, socket count, payment modules, private label from low MOQ | Limited to stock models, higher MOQ | No customization, fixed SKUs |
| Price (factory direct) | Competitive factory pricing with tiered discounts | Low price but quality risk | Brand markup of 2-4x |
| After-sales | Dedicated account manager, spare mainboards and modules, firmware support | No after-sales, high failure risk | Limited, ticket-based support |
Wanlin Fire's EV charger OEM services are suitable for: EV charger distributors, two-wheeler EV importers, e-bike brand procurement teams, e-scooter fleet operators, micromobility charging network buyers, e-rickshaw fleet owners, charging infrastructure wholesalers, property developers, delivery fleet managers, retail charger buyers, trading company sourcing managers, community charging project managers, utility partnership buyers and government mobility project officers.
EV Charger OEM Process: From Inquiry to Shipment
A typical Wanlin Fire OEM project begins with the target market, because voltage, certification and payment habits decide the hardware configuration. A standard OEM project then follows 8 steps:
- Tell Us Your Target Market - Southeast Asia, South Asia, Africa, Latin America, Middle East or Europe; different markets may require different voltage, certification and payment configurations
- Select a Model Line - our team recommends suitable WL-series models according to your vehicle types (48V / 60V / 72V), site conditions and target customers
- Verify Documentation - for certified models, request and verify the relevant certificate, OCPP conformance and enclosure rating documentation files
- Confirm OEM Requirements - color, logo, payment modules, voltage, socket count, packaging and accessories
- Sample Evaluation - samples can be evaluated before mass production according to the agreed commercial terms
- Confirm Production - after specifications, commercial terms and OEM details are confirmed, the project can proceed to production
- Quality Inspection - chargers are inspected and tested with load-bank and aging procedures according to applicable production and quality-control standards
- Shipment - products are prepared for shipment FOB, CIF or DDP according to the agreed logistics requirements
Customer Testimonials
Importers who moved from white-label resellers to factory-direct supply in Vietnam usually mention the same shift.
- Andre Silva (EV Charger Distributor, Sao Paulo, Brazil): "The load test report matched what we measured on site, and that has not happened with the previous two suppliers."
- Priya Nair (E-Rickshaw Fleet Owner, Mumbai, India): "Our logo, the App name and the payment gateway were all configured before the first container left the factory."
- Jose Rafael Cruz (Two-Wheeler EV Charging Network Operator, Da Nang, Vietnam): "The factory's engineer answered our voltage question in plain language on the same day, and that settled the sourcing decision."
Frequently Asked Questions
Q: Why keep coin payment on the WL-TM?
A: In many markets a large share of two-wheeler riders still pay cash. The dual-flow design keeps those riders served while the QR option captures card and wallet users.
Q: How is the coin box emptied and audited?
A: The box sits behind a security lock. The counter log records total coins per day, so the collection tally can be checked against physical coins in minutes.
Q: Can pricing differ by outlet on the WL-TM?
A: Coin pricing is set per cabinet, while app pricing can differ per outlet. Operators commonly run uniform coin pricing and time-based app tiers.
Q: What happens when the timer ends?
A: The outlet powers off and the LED goes dark, freeing the slot for the next rider. The vehicle cannot keep drawing current once the session closes.
Q: Does the WL-TM replace old resistor-panel stations?
A: Yes. It mounts on the same wall footprint and reuses the existing supply in most retrofits, which is why property managers choose it for legacy upgrades.
Project Summary
The outcome: By working directly with manufacturer Wanlin Fire, Da Nang Two-Wheeler EV Charging Network Operator Jose Rafael Cruz achieved 36% higher margins while offering competitive pricing. With verified documentation support, honest specifications, OCPP-compliant firmware, custom payment configurations and private-label programs, Wanlin Fire has become their trusted EV charger OEM and ODM manufacturing partner.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com
- Shenzhen HQ: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China

