Why do companies need UL certification?
1. The entire US market pays great attention to product safety; when consumers and purchasers choose products, they will choose products with UL certification marks;
2. UL has a history of more than 100 years, and the image of safety is deeply ingrained by consumers and the government. If you do not directly sell products to consumers, the intermediary will also require the products to have UL certification marks to make the products sell well;
3. American consumers and purchasers have more confidence in the company's products;
4. The U.S. federal, state, county, and city governments have a total of more than 40,000 administrative districts, all of which recognize the UL certification mark.
Lithium battery UL certification requires information
1. Specifications of batteries and batteries;
2. Specifications and information of key battery components (such as MOS, IC, PTC, NTC, PCM, protection devices, etc.);
3. The UL 1642 certification file of the battery cell;
4. Plastic casing, tape, wire, and PCB and other related insulation parts must have UL certification.
Lithium battery UL certification test standard
UL2054 household and commercial batteries (group)
The UL2054 standard is mainly for lithium battery packs or lithium battery packs. Suitable for primary (non-rechargeable) and secondary (rechargeable) batteries used as power sources in the product. These batteries can be composed of a single electrochemical cell or two or more lithium-ion batteries that convert chemical energy into electrical energy through chemical reactions in parallel or in series.
Lithium battery UL certification test items
1. Electrical performance test: short circuit test, overcharge test, abuse overcharge test, over discharge test, limited power source test;
2. Mechanical test: extrusion test, impact test, acceleration test, vibration test;
3. Battery pack shell test: drop impact test, 250N static test, mold pressure release test, fire roast test, ejection test;
4. Environmental test: high temperature test, temperature cycle test, etc.
Lithium battery UL certification process
1. Project determination
Confirm the UL standard, certification cost and time, number of samples, etc. on which the test is based;
2. Data preparation
According to UL requirements, the company prepares all the materials or documents required for certification;
3. Sample delivery test
The company sends samples to the designated laboratory for product testing;
4. Issue report
The product test results meet the UL standard requirements, and the test report is officially issued;
5. Factory audit
UL will conduct the first factory inspection of the production plant to ensure compliance with the standard requirements;
6. Use of logo
After the audit meets the requirements, the applicant is officially authorized to use the UL mark.
The above is the relevant introduction about the UL certification of lithium batteries. If you have lithium batteries that need UL certification and commissioned testing, please contact our company ZRLK. We will provide you with professional and efficient testing and certification services, with favorable prices and courteous services. If you provide us with product pictures and specifications, we will give us the corresponding cycle, quotation and specific plan according to your product. Welcome to inquire!
