If you're preparing to bring a portable charger into China, it's crucial to understand the country's specific rules regarding power banks. China requires power banks to have the mandatory CCC (China Compulsory Certification) mark, and this applies not only to domestic but also international flights arriving in Chinese airports such as Guangzhou and Shanghai. From my experience and what friends have shared, airport security may confiscate chargers that lack this certification or display unclear markings, so it's best to only carry ones compliant with the 3C certification standard. This rule can vary depending on the city, so always check the airport guidelines beforehand. Ordering a certified power bank ahead of time is highly recommended since relying on last-minute purchases in China can be frustrating and stressful—especially with long layovers and the need to keep your devices charged throughout your journey. Furthermore, for business travelers and tourists alike, knowing these rules helps avoid delays or losing your device during security checks. Always inspect your charger’s packaging or label for the official CCC logo before your flight, and avoid uncertified or recalled models. Following these guidelines will give you peace of mind and ensure your electronics remain safe and in your possession while exploring China.