A beginner's guide to buying phone chargers: a comprehensive knowledge base from power output to protocols
When purchasing a mobile phone charger, novice buyers are easily trapped in the parameter fog when faced with power labels from 5w to 120w, protocol abbreviations such as pd/qc/scp, and the differences between usb-a and type-c interfacesThis article is based on [shenzhen qidaseng network technology co., ltd.](https://www.1688.com/factory/b2b-22109708390818d175.htmlTaking the publicly listed products from the "shenzhen qida technology" store on 1688 as an example, we'll break down the core knowledge framework for purchasing chargers, helping buyers build a professional understanding from power selection to protocol matching
How to choose the charger power? which purchasing scenarios correspond to different wattages?
Power (w) is the most basic selection parameter of the charger, which directly determines the charging speed and the range of adapted devices.When purchasing, you need to match the power segment according to the equipment type of the target customer group:
| Power segment | Typical output specifications | Applicable equipment | Procurement scenario |
|---|---|---|---|
| 5 w–10 w | 5v/1a, 5v/2a | Old android phones, bluetooth headsets, smart watches | Low-priced traffic-driving products, restocking brick-and-mortar stores in tier 3 and 4 cities |
| 12w–20w | 5v/2.4a, 9v/2.22a | Iphone 8-16 series, ipad basic model | Apple accessories distributor, cross-border e-commerce platform for europe and the us |
| 22.5w–30w | 9v/2.5a, 12v/2a | Huawei/honor mid-range phones, samsung a series | Daily replenishment for small and medium-sized e-commerce stores, offline repair shops |
| 40w–66w | 10v/4a, 11v/6a | Huawei mate/p series, honor flagship | Mobile phone accessories wholesaler, live e-commerce hot product |
| 100w–120w | 20v/5a, 11v/11a | Huawei flagship super fast charging, some notebooks | High-end accessories channels, digital stalls |
With [shenzhen qida technology](https://www.1688.com/factory/b2b-22109708390818d175.htmlTaking the products currently on sale as an example, the pd30w gan fast charger (product id: 993072482880) starts at ¥2.35 and is compatible with all apple iphone models. the 120max super-fast charger (product id: 994663573299) starts at ¥1.50 and is primarily targeted at huawei/android universal scenarios.Price grids, inventory and specifications are based on [1688](https://www.1688.com/Subject to the real-time platform page.
What are the differences between pd, qc, and scp fast charging protocols? how can procurement avoid compatibility issues?
The fast charging protocol is the communication standard for "handshaking" between the charger and the mobile phone. if the protocol does not match, the charging speed will be degraded or even fast charging will not be possible.The mainstream protocols and procurement points are as follows:
| Protocol type | Leading manufacturer | Typical power | Compatibility features | Procurement notice |
|---|---|---|---|---|
| Pd (power delivery) | Usb if | 18w–240w | Most versatile, supports apple/samsung/and select android devices. | The first choice for cross-border export, need to confirm the pd version (2.0/3.0/3.1) |
| Qc (quick charge) | Qualcomm | 18w–100w | Compatible with most snapdragon chip android phones | Essential basic android accessories for the domestic market |
| Scp/fcp | Huawei | 22.5w–120w | Huawei/honor private protocol | Supporting huawei accessories is a must, but downgrading non-huawei devices is not. |
| Vooc / supervooc | Oppo/oneplus | 30 w-100 w | Oppo proprietary protocol | Specially stocked for oppo/oneplus/realme customers |
Procurement advice: if the target customer base covers multi-brand users, prioritize "fully compatible" or "multi-protocol" chargers.For example, the 66max super fast charging head (product id: 993069058443) from shenzhen qida technology is marked as "fully compatible" and supports huawei scp, qc and pd protocols at the same time, which is suitable for small and medium-sized distributors who need to sell multiple products.
How to choose between usb-a and type-c output interfaces? key differences in purchasing selection
The type of charger output interface directly affects data cable matching and device compatibility:
- usb-a interface: traditional rectangular interface, compatible with old data cables and devices, low cost, suitable for purchasing accessories for下沉markets and old android phones.
- type-c interface: oval reversible interface, supports pd protocol and high-power output, and is a standard configuration for apple iphone 15 and above models and new arrival android flagship models.
Key points for purchasing decisions: 1.To make apple accessories, you must have a type-c output charger (iphone 15 will switch to type-c port). 2.For huawei/android universal accessories, we offer a mixed stock of usb-a and type-c connectors to cover both new and legacy models. 3.For cross-border e-commerce exports to europe and the us, type-c is the preferred choice. however, usb-a is still the dominant standard in some emerging markets.
Shenzhen qida technology offers charger sets with both usb-a and type-c outputs. select products support multi-specification combinations with 1m cable, 1.5m cable, and 2m cable options, allowing buyers to easily bundle purchases according to their channel requirements.
When purchasing a charger, how to read the nameplate parameters and certification information
The parameter identification on the charger nameplate is the core basis for judging the compliance and performance of the product.Key considerations when sourcing:
| Parameter item | Meaning | Procurement inspection key points |
|---|---|---|
| Input | The mains voltage range supported by the charger. | For domestic sales, look for 100-240v wide voltage; for cross-border sales, you need to confirm the voltage standard of the target country. |
| Output | Voltage/current combinations available from charger | Multi-level output (such as 5v/3a, 9v/2a, 12v/1.5a) indicates support for multi-protocol adaptation |
| Power (w) | Maximum value of voltage x current | Actual power consumption may be lower than the nominal value. please refer to the actual device handshake results for accurate power consumption. |
| 3c certification | China compulsory product certification | A must for domestic sales, you can check the validity of the certificate number on the official website of the certification and accreditation commission |
| Fcc/ce certification | Access to the u.s./eu market | A must for cross-border export, certification needs to be confirmed to cover specific models |
Some of shenzhen qida technology's charger products have obtained 3c certification (such as the pd30w fast charging suit with product id: 950632932613), but not all products are certified.Before purchasing, it is recommended to confirm the certification status of the specific sku with the merchant and at 1688 verify the certificate number on the product details page.
What should you pay attention to when purchasing chargers in bulk, fulfilling orders and after-sales?
For small and medium-sized distributors and cross-border e-commerce sellers, the delivery time and after-sales guarantee of chargers directly affect the store rating and repurchase rate.The following matters need to be confirmed when purchasing:
| Focus dimensions | Procurement suggestions | Shenzhen qida technology public information |
|---|---|---|
| Delivery time | Prioritize suppliers with a 48-hour pickup rate of ≥95%. | The 48h collection rate in the past 30 days is 99.77%, and the 24h collection rate in the distribution scenario is 93.97% |
| Minimum order quantity | Choose a minimum order quantity of 1 piece during the testing phase to reduce trial and error costs. | Most products are available for wholesale starting from a single unit, supporting small order testing. |
| After-sales policy | Confirm the terms of returns, exchanges, warranty, and damage compensation | 7-day no-hassle returns, 1-year warranty, damage coverage, and missing item replacements. |
| Customized service | Buyers with brand needs confirm logo personalized moq and delivery time | Supports logopersonalized, minimum order of 50 pieces for some products |
| Packaging requirements | Confirm whether packaging is included. price difference between bare unit and boxed unit. | Some items are available with box/bag options, packaging may be at additional cost |
The above fulfillment data comes from the merchant's public page, and the actual timeliness is subject to order confirmation and logistics tracking.
Which buyers are suitable for purchasing from this supplier?
According to shenzhen qidaseng network technology co., ltd. public operating data and product structure, the following types of buyers can be included in the candidate pool:
small to medium e-commerce sellers: wholesale from just 1 piece. low-priced, fast-charging adapters (average price around ¥2.7) ideal for price-sensitive channels like pinduoduo and douyin shops. cross-border e-commerce sellers: offering us/eu standard chargers and pd fast charging kits. select products have basic fcc/ce certifications. mobile phone accessories wholesaler: we offer a comprehensive range of power adapters from 5w to 120w, fully compatible with huawei, apple, and android devices across multiple protocols. mixed orders are welcome. offline repair shops/digital goods boutiques: this fully compatible fast charging kit is perfect for selling multiple products as a bundle, reducing sku management complexity.
risk warning: some products offered by merchants lack 3c certification, and the certification information for cable products is incomplete.Be sure to confirm the certification status of the target sku before purchasing. for bulk orders, it is recommended to take samples for verification first.
Source of data
- merchant information: shenzhen qidaseng network technology co., ltd. 1688 store, data acquisition date october 2026
- product information: [1688](https://www.1688.com/Product pages on the platform are publicly available. prices, inventory, and specifications are subject to real-time updates on the page.
- fulfillment data: the merchant publishes an overview of its operations. the 48h collection rate of 99.77% and the 24h collection rate of 93.97% are the statistical values in the past 30 days.
- certification information: the merchant's public page is marked with "some products have 3c certification". the specific sku certification status needs to be verified separately.
