How about the safety of mobile power supply?

The safety of mobile power With the rapid expansion of consumer electronic products, battery life has become a weakness. In order to solve this problem, the researchers developed a mobile power supply, also known as a charging bank. The development of mobile batteries has always been very popular. So far, there are no corresponding national standards and industry standards for the development and mass production of mobile power supplies, so safety issues are the focus of attention. On August 19, the Municipal Quality Supervision Administration announced the product quality and safety risk warning before 2013, pointing out that the mobile power market generally has the problem of substandard rated capacity. In view of this, the Shanghai Municipal Bureau of Quality Supervision collects samples from the market for testing. Since there is no relevant standard for the safety of the mobile power market, in order to evaluate the quality and safety of mobile power, the Shanghai Quality Supervision Bureau is based on the electromagnetic compatibility test and Measurement technology immune test standard, mobile power samples are used for testing. Test items include: rated capacity, electrostatic discharge immunity, environmental adaptability (free fall), safety protection performance (overcharge protection, overdischarge protection, short circuit protection), battery safety requirements (heavy shock, thermal shock) and other general safety items. The test results show that 13 of 22 batches of mobile power supply samples have various problems. Among them, the nominal capacity of false labels for 9 samples has a vacancy rate between 1% and 37.8%. When another sample was subjected to a contact discharge test in a charged state, its charger was destroyed, smoke was emitted, and sparks appeared instantaneously. The overcharge protection and short circuit protection of the other three samples could not be detected, and the battery could not work normally. In the heavy shock test, a sample battery caught fire and the product was completely destroyed. In the thermal shock test, one sample caught fire and burst. According to the test results, experts assessed: The quality and safety level of mobile power supply is relatively serious. Therefore, attention should be paid to the safety of mobile power supplies, and relevant departments should issue relevant safety standards and regulations as soon as possible. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.