Whether you build chargers, buy them in volume, or test them on a production line, these are the questions we hear most. Answers are based on how USB PD, GaN and fast-charge protocols actually behave — not marketing copy.
Testing & Quality · 检测与质量
Why should every charger be tested before it ships?为什么每个充电器出厂前都要测？
Even a certified design drifts on the production line — component tolerances, solder joints and firmware can push a unit out of spec. A comprehensive tester catches under-voltage, over-current, a wrong protocol handshake and excess ripple that a visual check misses, protecting your brand from returns and safety complaints.
即便设计已认证，量产线上仍会因元器件公差、焊点和固件出现偏差。综合测试仪能抓出欠压、过流、协议握手错误和纹波超标，这些是目检发现不了的，能有效避免退货和安全投诉。
What does a charger comprehensive tester actually measure?综合测试仪到底测什么？
It checks the electrical essentials: output voltage, current and power; fast-charge protocol handshake (PD, QC, PPS and brand protocols); no-load and full-load regulation; and ripple/noise. Models such as GTI6031H also log every result for traceability.
测的是电气核心项：输出电压/电流/功率、快充协议握手（PD、QC、PPS 及品牌协议）、空载与满载调整率、纹波噪声。像 GTI6031H 这类机型还会逐条记录结果，便于追溯。
How do you spot a fake or non-compliant charger?怎么识别假货或不合格充电器？
Compare the actual negotiated power and protocol against the labelled spec. A genuine unit delivers stable voltage under load and completes the correct PD/QC handshake; a fake often collapses under load or reports the wrong profile. A tester makes this measurable instead of guesswork.
把实测的协商功率和协议跟标称规格对比。正品带载电压稳定、能完成正确的 PD/QC 握手；假货往往一带载就垮，或报错的协议档位。用测试仪就能量化，不再靠猜。
What certifications should a compliant charger carry?合规充电器需要哪些认证？
For global sales, look for CE (EU), FCC (US), UL or ETL (safety), RoHS (materials) and USB-IF certification for PD compliance. Our testers verify the electrical and protocol behaviour so you can confirm a unit matches its claimed spec before shipment.
做全球销售要看 CE（欧盟）、FCC（美国）、UL 或 ETL（安全）、RoHS（材质），以及 PD 合规的 USB-IF 认证。我们的测试仪验证电气与协议表现，让你在出货前确认产品与标称一致。
Protocols & Power · 协议与功率
Which fast-charging protocols can your testers cover?你们的测试仪支持哪些快充协议？
Our comprehensive testers support USB PD 3.2, PPS, Qualcomm QC, and full coverage of major brand protocols including Huawei (SCP/FCP), Samsung (AFC), OPPO/OnePlus (VOOC/SuperVOOC) and VIVO. Tell us which protocols your products use and we will confirm the exact model.
综合测试仪支持 USB PD 3.2、PPS、高通 QC，以及华为（SCP/FCP）、三星（AFC）、OPPO/一加（VOOC/SuperVOOC）、VIVO 等主流品牌协议全覆盖。告诉我你的产品用哪些协议，我帮你确认具体机型。
Can your testers handle 240W / USB PD 3.1 EPR chargers?能测 240W / PD 3.1 EPR 充电器吗？
Yes. Our high-power models cover up to 240W with PD 3.1 EPR support, so you can test the latest laptop and high-wattage GaN chargers — not just phones.
可以。我们的高功率机型支持到 240W 并兼容 PD 3.1 EPR，能测最新的笔记本和高功率氮化镓充电器，不只是手机。
Will a 100W charger damage my 20W phone?100W 充电器会弄坏 20W 手机吗？
No. USB Power Delivery negotiates voltage and current between charger and device during the handshake, so a 100W charger only delivers what the phone requests (typically 18–45W). The rated wattage is a ceiling, not a forced output — using a higher-rated charger on a phone is safe and common.
不会。USB PD 在握手时由充电器和设备协商电压电流，100W 充电器只会给手机所需的功率（通常 18–45W）。标称瓦数是上限，不是强制输出，用大功率充电器给手机充电是安全且普遍的做法。
Why does my charger get warm while charging?充电时充电器发热正常吗？
Some heat is normal — conversion always loses a little energy as heat, and GaN chargers stay cooler than silicon ones. If a charger gets very hot, smells, makes noise or deforms, stop using it; a tester can confirm whether its thermal and protection circuits are working.
有点热是正常的——转换总会损耗少量能量发热，氮化镓比硅方案更凉。但如果充电器烫得厉害、有异味、异响或变形，应立即停用；测试仪可确认其温控和保护电路是否正常。
Is a GaN charger safer than a traditional silicon one?氮化镓充电器比传统硅充电器更安全吗？
GaN (gallium nitride) runs cooler and more efficiently than silicon at the same power, which reduces heat stress. But safety ultimately depends on build quality and certifications (CE/FCC/UL/RoHS) — a certified GaN charger from a reputable maker is safe, while a cheap uncertified unit is not, GaN or not.
相同功率下氮化镓比硅更凉、更高效，减少热应力。但安全最终取决于做工和认证（CE/FCC/UL/RoHS）——正规品牌认证过的氮化镓是安全的，廉价无认证的产品则不安全，跟是不是氮化镓无关。
Equipment & Buying · 设备与选型
What is the difference between a benchtop tester and an ATE production-line system?台式测试仪和产线 ATE 系统有什么区别？
A benchtop unit tests one device at a time for engineering, incoming inspection or small batches. An ATE (automated test equipment) system integrates into the line to test many units automatically with fixtures, throughput tracking and MES data upload — built for volume.
台式机一次测一台，用于研发、来料检或小批量。ATE（自动化测试设备）系统集成到产线，借助工装自动测大量产品，带产能统计和 MES 数据上传，是为量产而生的。
How do I choose the right tester for my production line?怎么为我的产线选合适的测试仪？
Match it to your product type (charger, power bank, adapter, power strip), the protocols you need, your target throughput, and whether you need inline automation. Send us your product and daily volume and we will recommend a configuration — single-unit MOQ is available.
按产品类型（充电器、充电宝、适配器、排插）、所需协议、目标产能和是否需要在线自动化来选。把你的产品和日产量发给我们，我们给配置建议——单台起订也支持。
Can test data be logged and sent to our MES?测试数据能记录并上传 MES 吗？
Yes. Most models support an external-trigger port to start/stop from your fixture or PLC, and results can be logged and uploaded for MES traceability. Confirm the exact interface for your model.
可以。多数机型带外部触发口，可由你的工装或 PLC 启停，测试结果可记录并上传做 MES 追溯。具体接口按机型确认。
Do you test power banks too?充电宝也能测吗？
Yes. Our power-bank testers verify capacity, discharge curves, protection circuits and charge behaviour, alongside the charger testers. We cover the full fast-charging product range.
能。我们的充电宝测试仪验证容量、放电曲线、保护电路和充放电表现，与充电器测试仪配套。快充产品线我们全覆盖。
What is the minimum order quantity for your testers?测试仪最小起订量是多少？
Single-unit orders are accepted — buy exactly what you need for evaluation, a bench, or a full line. We also provide remote bilingual (EN/CN) technical support throughout the product lifecycle.
支持单台起订——评估、单工位或整线，按实际需求买即可。产品全生命周期还提供中英双语远程技术支持。