6.3.4.3 Battery Tampering Prevention in this Standard: Tampering prevention of electric bicycle batteries should meet the following requirements: a) The battery should be fixed inside the battery pack box, and the battery should be reasonably matched with the battery pack box. The installation position of the battery pack box should be reasonably matched with the battery pack box to prevent changes in battery capacity and voltage; b) The large gap between the battery and the side wall of the battery pack box is less than or equal to 30mm and does not shake; c) Electric bicycles shall not reserve interfaces for expanding on-board batteries; d) Electric bicycles shall not have external battery brackets; From the above requirements analysis: the requirements of a) and b) are proposed by battery manufacturers and need to be considered by battery manufacturers during design&Nbsp&Nbsp
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China