Knowledge

FCC Part 15 and Part 18 for wireless charging: how the rules differ, when ISM equipment rules apply, RF exposure questions and the evidence to keep.

EU Battery Regulation for power banks: carbon footprint, due diligence, battery passport, removability rules and the design responses that follow.

GPSR for chargers explained: who the responsible person is, what the product safety file must contain, listing duties and labelling for EU sales.

Protecting a custom charger design: what an NDA should cover, tooling ownership, design patents and how to work with an ODM without losing brand rights.

Defective charger batch claims: the evidence a claim needs, failure analysis options, deciding between rework and credit, and preventing a repeat batch.

Dual sourcing chargers explained: when a second manufacturing base is worth the cost, how to qualify it without splitting volume dangerously, and what it adds.

Charger pilot run and ramp-up planning: the three stages, capacity checks, yield tracking, component readiness and change control before mass production.

A charger buyer’s trade-show prep plan: what to prepare before Canton Fair, the questions that separate factories from traders, and how to compare quotes after.

AQL inspection levels for chargers: how to map defect classes to sampling plans, what to keep at 100% test, and how to report and handle rejections.

Golden sample approval for chargers: what a golden sample is, who keeps it, what to seal in the pack and how it is used to control production quality.

USB PD voltages in one reference table: fixed profiles, PPS and EPR ranges, current limits, cable dependency and why a 65W charger delivers 45W on one port.

Dell laptop charger replacement guide: connector families, how to read the label, wattage tiers by machine class and what to verify before ordering.