UL is short for Underwriter Laboratories Inc. UL safety testing institute is the most authoritative organization in the United States and a large non-governmental organization engaged in safety testing and appraisal in the world. UL certification is a non mandatory certification in the United States, which is mainly the testing and certification of product safety performance. Its certification scope does not include the EMC (electromagnetic compatibility) characteristics of the product. For different service categories of UL, UL marks can be divided into three categories: listed mark, classified certification mark and recognized component certification mark.

(1) The whole American market pays great attention to product safety; Amazon US station also requires some products to have UL certification; When consumers and purchasing units purchase products, they will choose products with UL certification marks.

(2) UL has a history of more than 100 years. The image of safety is deeply rooted in consumers and the government. If you don't sell products directly to consumers, middlemen will also require products to have UL certification marks to make products sell well.

(3) American consumers and buyers are more confident in the products of enterprises.

(4) More than 40000 federal, state, county and municipal governments across the United States recognize the UL certification mark.

Product

UL certification standard

tandard for lithium ion batteries

UL 1642.

Standard for battery packs and Ni MH and Ni Cr cells for lithium batteries

UL 2054、UL 62368

Standards for mobile power supply and power bank

UL 2056. UL 62368

Battery standard

UL 62133

Standard for safety of lithium batteries for light electric vehicles

UL2271

Standard for electrical system safety of personal electric travel tools

UL2272

Standard for safety of electrical systems for electric bicycles

UL2849

It is aimed at the standard of energy storage battery

Energy storage: photovoltaic power station, wind power station, UPS, household energy storage, etc

Vehicle auxiliary battery (excluding power battery)Batteries for light rail or fixed rail energy storage systems

UL1973

Standards for batteries for electric vehicles, battery packs for electric vehicle drive, capacitor systems, hybrid systems, and subsystems or modules

UL2580

Standard for information and audio and video products

UL/ULC 62368-1

Standard

UL Listed test items

UL 1642

Cycle test, pretreatment, abnormal charging test, forced discharge, external short circuit test, high altitude low voltage simulation test, temperature cycle test, vibration test, impact test, drop test, extrusion test, heavy object impact test, thermal shock test and combustion test

UL 2054

Cycle test, pretreatment, abnormal charging test, overcharge test, short circuit test, forced discharge, power limiting source test, temperature cycle test, die stress relief test, vibration test, impact test, drop test, extrusion test, heavy object impact test, thermal shock test, combustion test, temperature rise test, 250N constant force test

UL 2056

Cycle test, pretreatment, discharge test, abnormal charging test, overcharge test, short circuit test, forced discharge, power limiting source test, input test, output port overload test, mold stress relief test, drop test, temperature rise test, 250N stability test

1. Information of battery UL certification company: provide the detailed and accurate name, address, contact person, postal code, telephone and fax of the following units in Chinese and English.

(1) Applicant company: the company that applies for product testing and is responsible for all engineering service costs

(2) Listed companies: companies listed in various product catalogs published by UL

(3) Factory I: manufacturer and producer of products.

2. Battery UL certification product data: the product data shall be provided in English.

(1) Product Name: provide the full name of the product.

(2) Product model: list in detail the model, variety or classification number of all products that need to be tested.

(3) Intended use of the product: for example: home, office, factory, coal mine, ship, etc.

(4)Parts list: list the parts and components of the product, model (classification number), rated value and the name of the manufacturer. For insulation material, please provide the name of the raw material. When parts have been UL approved for certification or approval, please prove the specific model of the part and indicate its UL file number.

(5)Electrical performance: for electronic and electrical products. Provide electrical schematic diagram (circuit diagram) and electrical performance table.

(6) Structure diagram: for most products, it is necessary to provide the structure diagram or explosion diagram, ingredient list, etc.

(7) Photos, instructions, safety items or installation instructions of the product.

1. UL factory audit - four times a year. In addition to quarterly audit, there is also annual audit, and factory audit is also required every year.

In addition to the factory inspection fee, the certificate and license fee shall be paid quarterly.

2.Materials to be prepared by UL audit factory:

(1) Production and quality control procedures

(2) Inspection standards for main parts and finished products

(3) Record of main parts Certificate (yellow card)

(4) Material list of products

(5) Main documents of plastic material control

(6) Main documents of production control

(7) UL label records

(8) Recycling of bulk label for packaging of main parts

Step 1

Application

1. The customer fills in the UL application form;

2. Provide battery specifications and other data.

Step 2

Quotation

Determine the test time and cost according to the data provided.

Step 3

Pay

After confirming the quotation, the applicant shall sign the filing application form and service agreement and pay the project fee.

:Step 4

Sample

Send samples to customers.

Step 5

Test

The laboratory carries out UL test on the applied products according to the relevant UL testing standards.

Step 6

Report

The test passed and the report was completed.

Step 7

Factory Inspection

UL organization conducts factory inspection on the applicant factory.

Step 8

Certification

After factory inspection, UL will issue UL certificate.