This section specifies the terms, codes, classifications, requirements, test methods, inspection rules and markings, packaging, transportation, and storage of sealed lead-acid batteries and chargers for electric bicycles. This section applies to batteries for electric bicycles and their chargers (hereinafter referred to as "batteries or chargers") as specified in GB 17761 "General Technical Conditions for Electric Bicycles". 2 Normative reference documents: The clauses in the following documents become the clauses of this section through reference in this section. For dated reference documents, all subsequent modification orders (excluding corrected content) Neither the revised version nor the revised version applies to this section. However, all parties who have reached agreements based on this section are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this section. GB/T 2828.1-2003 Sampling Procedures for Inspection by Attributes - Part I: Acceptance Quality Limit (AQL) Retrieved batch by batch inspection sampling plan GB 4706.1-2005 Safety of household and similar electrical appliances Part 1: General requirements GB 4706.18-2005 Safety of household and similar electrical appliances Special requirements for battery chargers GB 12742 Technical conditions for bicycle testing equipment and appliances GB 17761 General technical conditions for electric bicycles JB/T 2599-1993 Lead acid battery product model designation method 3 Terminology, codes The following terms and definitions apply to this part. 3.1. Terminology and code of battery 3.1.1 Rated capacity The ampere hour of electricity that can be provided by the manufacturer in a fully charged state of the battery under specified conditions, represented by a 2-rate capacity C (Ah). 3.1.2 · Actual capacity The actual amount of electricity that a battery can discharge under specified conditions. Use C. (Ah) represents. The term 'current per an hour' refers to the magnitude of the charging and discharging current of a battery, with a value of Cx/2. Represented by 1 (A). 3.1.4 Charge retention characteristic The capacity retention performance of a fully charged battery after open circuit storage under specified conditions
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