The failure rate of electric bicycles and their battery products was 21.0 per cent.

In 2022, the General Administration of Market Supervision organized a electric bicycles and electric bicycle batteries product quality national supervision and spot checks. The spot checks are now reported as follows:

spot check overview

this time, 295 batches of electric bicycles and electric bicycle battery products produced by 262 enterprises were selected. Among them, 2 batches of products are suspected of counterfeiting and have been handed over to the market supervision department where the enterprise is located. A total of 295 batches of products produced by 262 enterprises were inspected and found. 62 batches of products are not qualified the unqualified rate was 21.0 per cent.

Follow-up spot checks

in this follow-up spot check, 24 unqualified enterprises were found in the last spot check, 7 enterprises were still unqualified in this spot check, and 17 enterprises were qualified.

this time, 195 batches of products produced by 195 enterprises in 13 provinces (autonomous regions and municipalities) were randomly selected in the circulation field. One batch of products was suspected of counterfeiting and has been handed over to the market supervision department where the company is located. In 195 batches of products from 195 enterprises tested, it was found that 40 batches of products are not qualified the unqualified rate of spot checks was 20.5, down 4.4 percentage points from the previous spot check. The unqualified rate of the product in the past three years was 15.1%, 24.9% and 20.5%, respectively.

This spot check focuses on 10 items such as vehicle speed limit, braking performance, vehicle quality, structure, vehicle speed prompt sound, fire performance, etc. Tests were carried out. Except for braking performance items, other items are unqualified. According to the analysis of the technical organization, the main reasons for the disqualification are: First, the quality control of the production enterprise is not strict, the factory inspection is not in place, there are phenomena such as the speed exceeding the standard requirements, no prompt sound, and fewer wrong parts; second, the production enterprise uses The consistency of parts is not good, and there are quality differences in the same batch of products.

This spot check mainly involves production enterprises in Tianjin, Jiangsu Province and Guangdong Province, which are industrial agglomeration areas. 79 batches, 56 batches and 21 batches of products were randomly inspected, and the unqualified rates were 24.1, 10.7 and 28.6 respectively.

electric vehicle batteries are the power source on electric bicycles, and most of them are lead-acid batteries or lithium-ion batteries. This time, 100 batches of products produced by 67 enterprises in 17 provinces (autonomous regions and municipalities) were randomly selected in the circulation field. One batch of products is suspected of counterfeiting and has been handed over to the market supervision department where the enterprise is located. Of the 100 batches of products from 67 companies tested, it was found that 22 batches of products are not qualified the unqualified rate of spot checks was 22.0 per cent.

This spot check focuses on 19 items such as 2hr capacity, high current discharge, energy density, low temperature capacity, fast charging capacity, explosion-proof capacity, short circuit, over discharge, etc. Tests were carried out. The unqualified items of lead-acid battery products involve low temperature capacity, 2hr capacity, large current discharge and energy density. The unqualified items of lithium-ion battery products involve 2hr capacity, I2(A) discharge, overcharge, short circuit protection, low temperature discharge, shell flame retardancy, and discharge overcurrent protection. According to the analysis of technical institutions, the main reasons for the unqualified products are as follows: first, the actual capacity of the products can not reach the nominal rated capacity; second, the quality control of key production processes, key raw materials and key components is not strict.

This spot check mainly involves production enterprises in Zhejiang, Jiangsu and Guangdong provinces, which are industrial agglomeration areas. 22 batches, 11 batches and 15 batches of products were randomly inspected, and the unqualified rates were 9.1, 9.1 and 73.3 respectively.

strengthen the processing of spot check results. In accordance with the "the People's Republic of China Product Quality Law", "Product Quality Supervision and Spot Check Management Interim Measures" and other provisions, do a good job in handling the results of supervision and spot checks. Seize and detain unqualified products in accordance with the law, order unqualified product sales companies to stop selling the same product, comprehensively clean up and dispose of unqualified products in stock in accordance with the law; order unqualified product manufacturers to stop production and sales of the same product, and clarify rectification requirements, and supervise the implementation of rectification measures, Organize review in time. those suspected of committing crimes shall be promptly transferred to judicial organs. In accordance with the law, seriously illegal and untrustworthy enterprises will be included in the list of seriously illegal and untrustworthy enterprises for management. The results shall be entered into the e-CQS system and submitted to the General Administration in a timely manner. The General Administration will strengthen follow-up supervision and inform all localities of the handling of the results as appropriate.

Carry out special quality management and follow-up supervision. The market supervision departments of Tianjin and Guangdong Province should carry out special quality rectification on the industrial agglomeration areas of electric bicycles and electric bicycle batteries, and the market supervision departments of Zhejiang and Jiangsu provinces should carry out quality tracking supervision on electric bicycle batteries, strengthen the supervision and inspection of key enterprises within their jurisdiction, comprehensively use a variety of means, maintain the high-pressure situation of quality supervision, seriously deal with quality violations, and strive to improve the quality level.

Supervise the implementation of the main responsibility. Inform the local government and relevant departments of the unqualified products in this spot check, take effective measures to urge enterprises to implement the main responsibility of product quality and safety in accordance with the law, guide enterprises to organize production in strict accordance with standards, and maintain product quality and safety.

:: Strengthening quality and technical assistance. Organize relevant industry organizations and technical institutions to help companies find out the reasons, propose improvement measures and solutions, and promote the improvement of industry quality.

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