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Do you know the safety hazard of lithium battery charging desk lamp?

Author: Release time:2019-07-30 Source: Font: Big Middle Small View count:49

Lithium battery LED rechargeable desk lamp is a kind of lamp that has risen in recent years. Because it is equipped with a lithium battery, the lamp can be moved away from the power source and used more conveniently. Therefore, it is favored by many consumers. However, the market supervision department has found that the risk monitoring of table lamps has been found: although the products are convenient, there are many risks, and some risks involve the personal safety of consumers.

It is understood that there are samples of more serious defects such as overheating, explosion and fire, and the problem is mainly concentrated on the battery. According to the professionals, the rechargeable desk lamps currently on the market use lithium batteries, lead-acid batteries and nickel-cadmium batteries. The 30 batches of samples purchased for this risk monitoring are all lithium-ion batteries, which are derived from Well-known e-commerce platform.

All 30 batches of rechargeable lamp samples have different levels of quality hazards, and even nearly half of the samples used have serious defects such as overheating, fire or explosion.

In the laboratory reporter saw, the tester put a sample of the battery into the test box for testing. After only about 20 minutes, the battery suddenly smoked, followed by an explosion and a fire. In the 30 batches of risk monitoring samples, during the test, the battery produced up to 7 batches of samples that could directly injure the human body, causing explosions and fires, accounting for 23% of the total. Five batches of samples exploded and three batches of samples caught fire. The battery of this sample is both a fire and an explosion.

Another major safety risk found in high-temperature external short-circuit test is that the battery is overheated. National standards stipulate that under the test conditions, the maximum temperature of the battery shall not exceed 150 °C. However, according to the test personnel, during the test, 7 batches of samples exceeded the national standard limit of 150 °C, accounting for up to 23%. Among them, the temperature of 4 batches not only exceeds 150 ° C, but even reaches 160 ° C.

In combination with the special use scene of the charging desk lamp, the built-in battery is a serious risk in the high temperature external short circuit test, whether it is an explosion, a fire or a temperature overheating. Once it occurs in real life, it is very likely to cause a consumer. Unrecoverable loss.

The high temperature external short circuit is the safety performance of the battery, and the battery capacity is the basic indicator for measuring the battery performance. The so-called battery capacity refers to the amount of battery storage capacity. Under normal circumstances, the higher the capacity, the longer the battery's working time. However, in the survey, more than half of the companies did not make any mark on the product or the manual.

Rechargeable desk lamps use "light panel" batteries that are not labeled with any kind or capacity parameters, which also poses a safety risk to consumers. Zhang Siyao, Senior Engineer, Weikai Testing Technology Co., Ltd.: If it does not identify the type of battery and its capacity, it may be a nickel battery, but we use a lithium battery charger to charge it. So there will be some security issues with this battery. With the deepening of the investigation, the false labeling of battery capacity parameters is another major problem found in the risk monitoring of this charging desk lamp.

Among the 30 batches of samples, except for the 17 batches of "light panel" batteries without any identification, and the batteries of the other 13 batches of samples, although the capacity was marked, the test results showed that 6 batches of samples had different degrees of imaginary The standard phenomenon, this sample battery capacity is particularly serious, the battery capacity is 3000 mAh, but the test capacity is only 1287 mAh, only 42% of the marked capacity.

LED charging desk lamp as an emerging product, the charging desk lamp quickly got some consumers' approval, which shows that there is an objective demand for the charging desk lamp. At present, the annual output value of the entire industry is about 1 billion yuan. Production enterprises are mainly concentrated in Guangdong, Fujian, Shanghai, Jiangsu and other places. The market supervision department believes that it is necessary to provide support for innovative products, and one of the keys to support is to detect risks in a timely manner and prevent the industry from going wrong, so as to protect the promotion and development of emerging products.

According to the survey conducted by the Guangdong Provincial Market Supervision Administration, among the 1491 valid questionnaires, as many as 1072 respondents indicated that they purchased or planned to purchase rechargeable desk lamps, accounting for 71.9%. Since the charging desk lamp can be placed on a desk, or placed on the bed or even directly on the bed, special application scenarios make this product a higher proportion in the student population, up to 80%.

Emerging products, mobile lighting, and the use of rechargeable desk lamps have made them more and more popular with consumers, and the consumer groups are also growing. On the e-commerce platform, there are many online stores selling rechargeable desk lamps, and the price difference is large. Some "net red" products have sold more than 60,000 units a month. Almost all businesses sell their products with signs such as mobile and protection of sight.

However, this risk monitoring organized by the Guangdong Provincial Market Supervision Bureau shows that while this product is “easy to use”, the security risks are inconspicuous and may bring unpredictable risks to consumers at any time. For the problems found in the test and actual use of the charging desk lamp, experts believe that the lack of standards is the most important cause of safety hazards in the charging desk lamp.

That is to say, although the emerging lithium battery charging desk lamps are developing rapidly, so far, China has not yet set standards for this product that may involve consumers' personal safety products. According to experts, the lack of standards has greatly reduced the self-discipline of the products of the manufacturers, which leads to the quality of the products.

Legal experts pointed out that consumer security rights have already laid a basic legal bottom line for all products that may have potential risks, such as rechargeable desk lamps, and there is a way to eliminate regulatory blind spots. Therefore, for emerging products such as rechargeable desk lamps, the regulatory authorities should not fail, but should take more measures to strengthen supervision to protect the legitimate rights and interests of consumers.

Even without standards, the charging desk lamp must meet basic safety requirements. This is not only a legal requirement, but also a simple requirement in the senses. Manufacturers of rechargeable desk lamps should understand a basic principle. Since they all understand, risk monitoring has found so many safety risks, and the reasons behind it are nothing more than temptation. Since it is a matter of knowing and guilty, then it is necessary to use the mechanism of joint punishment and distrust, so that such enterprises can be called and beat the market.

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