YIYANG SHENDA Knowledge Center

EV charger knowledge for better product decisions

Explore connector standards, product selection, certification review and OEM planning for global EV charger markets.

Knowledge Center Paths

Choose the knowledge path for your buying task

Start with direct answers, connected topic research, decision frameworks or downloadable documents.

Knowledge Articles Direct answers on standards, connectors, certification and sourcing. Explore Articles Topic Hubs Connected guidance, products, certificates and FAQ by subject. Browse Topic Hubs Decision Guides Evaluation frameworks, comparisons and risk checks before samples. View Decision Guides Resources & Downloads Manuals, checklists, catalogs and project documents for review. Open Resources

Start with the EV charger question you need to solve

Each topic connects practical guidance with relevant product families, documents and next-step support.

EV Charger Topic

Portable EV Charger

Portable EV charger guidance for distributors, EV dealers, e-commerce sellers and brand owners comparing plug types, charger power, cable length, packaging and market requirements.

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EV Charger Topic

Wallbox EV Charger

Wallbox EV charger knowledge for buyers comparing 7kW, 11kW and 22kW AC charger, installation conditions, connector formats and selected smart functions.

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EV Charger Topic

EV Charger Cable

EV charger cable guidance covering Type 1, Type 2, GB/T and related connector decisions for distributors, installers, EV dealers and private-label programs.

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EV Charger Topic

EV Charger Adapter

EV charger adapter selection guidance for mixed connector markets, vehicle import channels, retailers and project buyers that need direction-specific compatibility review.

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EV Charger Topic

EV Charger Certification

EV charger certification guidance for reviewing CE, CB, UKCA and other available documents by product model, certificate holder, target market and sales channel.

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EV Charger Topic

OEM EV Charger

OEM and ODM EV charger guidance for brand owners, distributors and e-commerce sellers preparing private-label products, packaging, manuals, samples and compliant listings.

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Buyer Knowledge

Practical knowledge for buyer decisions

Use these articles to define your market, connector, certificate and product-line requirements before model confirmation.

Knowledge Article

Localizing EV Charging Search Terms for European Buyers – Language, Power Systems, and Long-Tail Terms

Localizing EV charging search terms for European buyers means matching the words buyers actually use in each market, in their own language and with their own plug and power vocabulary, instead of translating an English keyword list word for word.

Knowledge Article

CEE Plug EV Charger Accessories for Europe – Matching Connectors to Site Power Supplies

In Europe, an EV charger is only as usable as the connection between its supply-side plug and the power supply actually available at the site. CEE-style plugs include industrial IEC 60309 connectors and domestic CEE 7/3 Schuko types. They exist in several current and phase ratings, and each one implies a different maxi

Knowledge Article

EV Charging Load Balancing and Hybrid Battery Terms – What Buyers Should Verify

Load balancing terms describe how much power an AC charger is allowed to draw at any moment, while hybrid battery and hybrid inverter terms describe where that power comes from and how it is managed. For buyers, three things should be verified before ordering - what limits the charger (dynamic load balancing, main fuse,

Knowledge Article

OCPP 1.6J and OCPP 2.0.1 EV Chargers – What Buyers Should Understand About Network Compatibility

OCPP 1.6J and OCPP 2.0.1 are two versions of the Open Charge Point Protocol, the communication language an EV charger uses to talk to a charging network backend, called a CSMS or Charging Station Management System. They are not automatically interchangeable. A wallbox that supports only OCPP 1.6J may not work with a 2.

Decision Guides

Compare the product paths in front of you

Decision Guide

Decision Guide – “Decision Guide – What Overseas Buyers Should Verify Before Choosing an AC EV Charging Supplier”

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Decision Guide

Decision Guide – Household EV Charging Cable Procurement Decision Guide – How Distributors Should Compare AC EV Charging Cable Options for Local Markets

> Verification note - This guide is a decision framework, not a guarantee of legal compliance. Product standards, local registration rules, and supplier documentation change. Always confirm requirements with the relevant authority and request current model-level documents from the supplier before ordering.

Decision Guide

Wallbox Function Guide

Guide entry for RFID, OCPP, APP, Wi-Fi, Bluetooth, DLB, MID and PEN function review.

From Knowledge to Evidence

Connect guidance with real products and documents

After narrowing the buying path, review the matching product family and ask for model-specific certificate evidence.

Portable EV Charger

Flexible AC charger paths for retail, dealer and emergency-use programs.

Wallbox EV Charger

Fixed AC charger options for homes, workplaces and installation projects.

EV Charger Cable

Connector and current options for regional charger standards.

EV Charger Adapter

Direction-specific compatibility for mixed connector markets.

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Resources & Downloads

Documents for your product review

Download & Document

Type 1 to Tesla EV Charger Adapter Manual

Public manual PDF for Type 1 to Tesla EV charger adapter review.

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Tesla NACS to Type 1 J1772 EV Charger Adapter Manual

Public manual PDF for Tesla NACS to Type 1 J1772 adapter review.

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Type 2 to Type 1 EV Charger Adapter Manual

Public manual PDF for Type 2 to Type 1 EV charger adapter review.

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All knowledge, guides and documents

Knowledge Article

How to Choose EV Charging for Fleets – Tailored Solutions for Government and Commercial Vehicles

Choosing EV charging for government or commercial fleets is not only about selecting a charger. The practical starting point is to define the fleet scenario — who charges, where vehicles park, how many charge points are needed, and how access and energy use should be managed — then review a wallbox configuration that m

Knowledge Article

Importer’s Guide – How to Choose an AC EV Charger Manufacturer

An importer should evaluate an AC EV charger manufacturer as a long-term supply partner, not just as a source for a single product. The key decision factors are product range, market-specific model matching, model-level certification documents, OEM/ODM flexibility, proof and trial-order support, quality control, and a

Knowledge Article

How to Choose EV Charger Certifications – What Each Mark Means for Your Purchase

Choose an EV charger certification by matching the certificate to the exact product model, the market where the product will be sold, the sales channel, and the certificate holder. CE, UKCA, CB, FCC, and RCM marks cover different requirements, and a certificate for one portable charger model does not automatically appl

Knowledge Article

How to Choose a 22kW AC Wallbox Type 2: Display, Protections, and Connectivity

Choosing a 22kW AC wallbox with a Type 2 connector comes down to three areas - display and user feedback, electrical protections, and connectivity and access functions. YIYANG SHENDA's 22kW wallbox family, the SD-E900 and SD-E999 models, is a Mode 3 AC charging station with a tethered Type 2 interface rated for three-ph

Knowledge Article

How to Choose 7kW Portable EV Charger – Features, Portability, and Safety

A 7kW portable EV charger is a practical AC charging option for home use, travel backup, vehicle delivery, e-commerce sales and reseller starter lines. When choosing one, check the vehicle-side connector, local plug and socket, rated current and voltage, target-market certification, enclosure protection, operating temp

Knowledge Article

Portable EV Charger Power Selection – 7kW vs 22kW Suitability Analysis

The right portable EV charger power depends on three factors - the electrical supply at the charging location, the vehicle's onboard AC charger, and the intended charging routine.

Knowledge Article

CEE Plug Charger Buying Guide – Certification and Matching in European Industrial Settings

A CEE plug charger is a portable EV charger that connects to a CEE (IEC 60309) industrial power outlet — the plug system widely installed in European factories, warehouses, workshops, farms, campsites, marinas, and construction sites. In European industrial settings, the correct CEE plug charger depends on three things

Knowledge Article

Type 1 J1772 Charging Cable – North American EV Compatibility Guide and FAQ

A Type 1 J1772 charging cable is an AC electric vehicle charging cable that uses the SAE J1772 connector, commonly called the Type 1 connector. It is widely used for Level 1 and Level 2 AC charging in North America. Compatibility is not automatic - buyers must check the vehicle-side connector, the charger-side connector

Knowledge Article

How to Choose Type 2 to GB/T Adapter ST-E052B – Installation and Safety Tips

The ST-E052B is an AC charging adapter from YIYANG SHENDA that connects a Type 2 charging cable or AC charger to a GB/T vehicle inlet. According to YIYANG SHENDA official knowledge base data, it is rated at AC 220V–480V, with a maximum current of 32A, optional IP55 protection, an operating temperature range of -30°C to

Knowledge Article

Wallbox EV Charger Buying Guide – 7kW or 22kW Before Installation

A wallbox is a fixed, wall-mounted AC charging station for electric vehicles. Before installation, the main power decision is usually between 7kW and 22kW, with 11kW as a three-phase middle option.

Knowledge Article

What Portable Charger Power Is Enough? Comparing 7kW and 22kW Portable Chargers

For most buyers, a 7kW portable EV charger is enough. It works with a standard single-phase 230V home supply, supports the common AC charging level of many EVs, and covers the main portable use cases - home charging, backup charging, travel, vehicle delivery, and retail stock.

Knowledge Article

Exporting EV Charging Products to Europe – CE Certification Process and Common Questions

Exporting EV charging products to Europe is not a single “one certificate covers everything” process. CE is a conformity framework, and its requirements depend on the product type, model, target country, sales channel, and certificate holder. For buyers, the practical first step is to confirm which CE-related documents

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