X-ray scans reveal the hidden risks of cheap batteries

Lumafield released the results of a new study of lithium -ion batteries “revealing a huge quality gap between brand batteries and low -cost cells” that are easily available through online stores including Amazon and TEMU. The company used CT scannings (CT), which is able to look inside the organisms in 3D using X -rays, to analyze more than 1,000 Li -Eun battery. Disadvantages of manufacturing are found in low -cost and counterfeit batteries that could lead to fires and explosions.

The study tested 18650 cells of Lithium Ion battery, which are used in various products including electric toothbrush, energy tools, electronic bikes, energy banks, and even electric cars. The batteries were purchased from ten different brands: three original equipment owners, including Samsung and Panasonic, obtained from “specialized suppliers who are very reviewed”, and three sellers selling the return of paralysis (UEM batteries are usually replaced by plastic external packaging) from “specialized battery sites” or exceeding brands, and four companies that sell low batteries Cost.

Lumafield scanned 1054 battery – about 100 of each brand – and 33 of which suffered a defect in dangerous manufacturing known as the negative The disadvantage “greatly increases the danger of the inner circle of the short bike and battery fires” and can reduce the total life of the battery, “according to Lumafield, all 33 batteries were identified with defects of 424 were sold through low -cost brands that are sold through allocations for low brands. 9,900 mAh while the brand batteries 18650 has capabilities in the range of 3000-3,450 mAh per hour.

When taking low -cost/fake batteries only, there are approximately 8 percent of the chances that can have a defect in the dangerous negative anode, based on the results of Lumafield. For two fake brands that were not impossible specifications, the percentage of batteries tested from those brands that were found on a defect above 12 and 15 percent. None of the brand OEM batteries were found any problems, and while there was some deviation in Anode Tebhhang for rewriting batteries, the deviations were seven times worse for low cells.

When looking at other indicators of construction quality, all batteries of low -cost brands also aligned a much worse edge of the inner wound layers than those that are manufactured by the original reputable equipment manufacturers, which increases the risk of short circles and loss of performance.

Difficulties such as negative accumulated and the bad edge nods do not mean that the affected battery is guaranteed to explode or pick up fire, but it can increase the risk of these accidents, especially when combined with other factors such as leaving them in a hot car or an accidental decrease, causing additional damage.

The results of the Lumafield study indicate that the batteries of a good reputable OEMS such as Samsung, Panasonic and MURATA are safer and more reliable. Although the RewAP batteries were good at the Lumafield test, the replaced packaging makes it difficult to know where sources were obtained, which increases the risks due to a lack of quality control in the management of the supply chain.

Not everyone can access the X -ray tomography machine to test cell quality in each battery device that they buy, but the study is a reminder that purchases of good reputable brands can increase the chances of their batteries free from dangerous manufacturing defects. Trying to save money with less well -known brands may end, which costs you a lot in the long run.