Group 1 - The health assessment of lithium batteries for electric bicycles in Xicheng District began in early August, with over 8,000 bicycles tested so far [2] - Approximately 5 to 6 out of every 100 electric bicycles are found to carry high-risk batteries, indicated by a "red code" [2] - Community staff will guide residents to replace high-risk batteries, and temporary storage cabinets for "red code" batteries will be set up to enhance safety [2] Group 2 - The battery detection process follows a standardized protocol, with all testing personnel and equipment undergoing city-level certification and training [3] - A mini-program information platform has been established to record and manage data on electric bicycles and batteries, ensuring unified supervision [3] - As of early 2024, lithium battery models will account for 53.9% of electric bicycles sold in Beijing, highlighting the importance of safety measures due to aging and improper use of batteries [3]