Guangzhou Daily News Mobile power (commonly known as charging treasure) As an external power supply for portable electronic devices, it is increasingly needed by consumers. What is the performance of mobile power in the market? Is the nominal capacity of the merchants reached?
From March to August this year, the Guangdong Provincial Consumer Council directed the Maoming City Consumer Council to conduct a mobile power comparison test around the performance indicators of consumer concern. It was found that 40% of the charging treasures had the problem of capacity virtual standard, and the most serious charging treasure The nominal rated capacity of 10800mAh is actually only 2216mAh, and the measured capacity is only 20.5% of the nominal rated capacity.
CC staff randomly purchased 20 mobile power samples from retail malls and counters, with nominal capacity ranging from 6000 mAh to 20,000 mAh, ranging from 136 yuan to 175 yuan. The Consumer Council commissioned a third-party testing agency. Test comparison for rated capacity and conversion efficiency.
The rated capacity test results show that 12 of the 20 mobile power samples have measured discharge capacity that meets or exceeds the nominal rated capacity. The most outstanding performance is the Hailutong J120 produced by Dongguan Hailutong Industrial Co., Ltd., the measured capacity is the rated capacity. 106.6%; Taipower, Yubo, Huawei and other samples also performed well, the measured capacity exceeded the rated capacity of the product.
However, the actual discharge capacity of 8 samples is obviously inconsistent with the nominal rated capacity, and the discrepancies rate is as high as 40%. There are serious discrepancies between the four samples of Haiyun P108, PRODA, TZY, Kimberley, etc., 'measured capacity/rated capacity' ratio Both are less than 70%, of which the measured capacity of Kimberley produced by Dongguan Longqi Electronic Technology Co., Ltd. is only 20.5% of the nominal rated capacity, and the problem of capacity virtual standard is the most serious.
The conversion efficiency test results show that all 20 samples meet the standard requirements, and the conversion efficiency can reach more than 85%. Among them, Romans, Taipower, Huawei, glory, 555, Haiyun samples perform better, and the conversion efficiency is more than 90%.
Tips: Preferred lithium polymer battery products
According to the results of the comparison test, combined with the relevant expert opinions, the Guangdong Provincial Consumer Council reminds the consumers: To the formal shopping mall supermarket to buy product identification integrity, there is 'overcharge and over discharge' protection circuit, lithium polymer battery, high conversion efficiency of mobile Power supply, pay attention to check the battery level and production date when purchasing, try not to choose the non-utility dual port output products.
Guangzhou Daily 》 Original link http://gzdaily.dayoo.com/pc/html/2018-09/19/content_99946_545591.htm
