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.

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Featured Topics

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.

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Knowledge Article

Supply Stability and After-Sales Support in EV Charger Sourcing

In EV charger sourcing, supply stability and after-sales support should be evaluated together with price, because they usually determine the real total cost of a product line. Supply stability means the same model can be reordered, produced and delivered consistently over time. After-sales support means there is a clea

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Knowledge Article

EV Charging Product Evaluation for Retail Chain Buyers

Retail chain buyers should evaluate EV charging products on four fronts before committing shelf space across multiple stores - market fit, store-level explainability, after-sales and returns exposure, and supply continuity. Market fit covers connector type, socket, voltage and the certification that applies to the sales

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Knowledge Article

Portable Chargers and Wallboxes for Government Fleet Charging Projects

Government fleet charging projects usually combine fixed wallbox AC chargers at depots, offices and public parking locations with portable chargers used for backup, field duty and vehicle handover. The right mix depends on the fleet's parking pattern, available power capacity, connector type, access control and meterin

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Knowledge Article

22kW Portable EV Charger Protection Features – A Buyer Checklist

A 22kW portable EV charger should be judged by its protection design first, not only by its power rating. For YIYANG SHENDA buyers, the practical checklist is - over-voltage protection, under-voltage protection, over-load and over-current protection, earth leakage protection with DC residual current handling, over-tempe

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Knowledge Article

7kW Wallbox EV Charger – Standard Definition and Buyer Basics

A 7kW wallbox EV charger is a wall-mounted AC charging station typically rated at 7kW, delivered through a single-phase 230V supply at 32A. It is one of the most widely used AC charging capacities for homes, apartments, and light commercial installations in markets that operate on single-phase electricity.

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Knowledge Article

Portable EV Charger Power Selection – 3.5kW to 22kW Explained for Buyers

Portable EV charger power selection depends on four variables - the vehicle onboard charger limit, the available socket and circuit, the number of phases available, and how fast the buyer actually needs to recharge. In the AC portable charger range, common output levels are roughly 3.5kW, 7kW, 11kW and 22kW. A higher kW

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