Mobile Phone Battery Universal Charger Failed

The Provincial Administration for Industry and Commerce sampled 40 batches of chargers produced by 26 enterprises, focusing on safe use projects         This spot check focuses on the safety and electromagnetic compatibility items directly related to the safety and health of users. Safety requirements, generally speaking, require that the circuit structure of the product should meet certain safety requirements. No matter what state the product is in, it should not endanger personal safety.         Our news (reporter Quan Jie, correspondent Hu Yanni and Li Wen) be careful when buying mobile phone battery charger! The latest sampling results released by the Guangdong Provincial Administration for Industry and Commerce yesterday showed that all mobile phone battery chargers were unqualified, the worst in recent three years! The Provincial Administration for Industry and Commerce said that the chargers in this spot check are universal chargers. The electrical clearance and creepage distance between the initial stages of all transformers in the spot check charger do not meet the standard requirements, which is likely to bring dangerous voltage to the user's accessible output terminals, causing personal injury or harm to the charged equipment.         In the past three years, the qualified rate was only 20%         Guangdong Provincial Administration for Industry and Commerce conducted a random inspection of 40 batches of mobile phone battery chargers produced by 26 manufacturers sold by 19 sales enterprises in 6 cities, including Shantou, Shaoguan, Huizhou, Yangjiang, Zhanjiang and Maoming. After inspection, all of them were unqualified. In the past three years, the qualified rate of mobile phone battery chargers has been low, with only about 20% qualified in the first two years. This time there was zero qualification, and the Provincial Administration for Industry and Commerce said that "the situation is serious, and there are serious quality problems with mobile phone battery chargers".         Unqualified shell fire protection due to Jerry built work         From the spot check, the quality of mobile phone battery chargers sold in the circulation field is poor and the qualified rate is very low. Main nonconforming items: first, marking and description; Second, electrical insulation and electrical strength; Third, electrical clearance, creepage distance and insulation penetration distance; Fourth, materials (fire prevention of shell); Fifth, electromagnetic compatibility, including power terminal disturbance voltage and radiation disturbance. The first four are safety requirements and the fifth is electromagnetic compatibility requirements. Another unqualified mechanical strength is that the shell is disconnected after the drop test.         Among them, electrical clearance, creepage distance, insulation penetration distance and electromagnetic compatibility are 100% unqualified. The unqualified rate of battery charger materials also reached 97.5%. "For the explosion and fire accidents of the charger, the fire performance test of the shell is added."         The relevant person in charge said that the national standard requires the fire protection performance of mobile phone chargers to burn them within the specified time, stop the combustion for a certain time, and then carry out secondary combustion at the same part. The continuous combustion of goods should not exceed 1 minute, and the samples should not be completely burned out, and the 39 unqualified batches did not meet the standard requirements. The Provincial Administration for Industry and Commerce said that the main reason for the unqualified fire prevention of the shell is that the manufacturing enterprises cut corners in order to reduce costs and did not add flame retardant materials during processing.         Purchase guide:         1. Try to buy products marked with "CQC" certification mark;         2. Those whose prices are too cheap cannot be purchased;         3. It is recommended not to buy products with incomplete or confused identification;         4. Select a charger with appropriate output voltage and current;         5. Try to choose the original standard charger.         The qualified rate of mobile phone battery produced in Guangzhou is 16.7%         Our news (reporter Quan Jie, correspondent Hu Yanni, Li Wen) yesterday, Guangdong Province announced the quality sampling results of mobile phone batteries sold in the circulation field in the province, with a qualified rate of only 65%. Among the mobile phone battery products produced by 31 manufacturers in Shenzhen, Guangzhou, Dongguan, Huizhou and Fujian, the quality of mobile phone batteries produced in Guangzhou is the worst, with a qualified rate of only 16.7%,