UL1642 is mainly for battery testing . Recently, many customers have asked me about UL1642 testing. UL1642 is a special test standard for the safety of lithium batteries in the United States, mainly for the temperature rise, withstand voltage, insulation and other requirements of the power supply. Different products and different regions have different safety standards. If you have related lithium batteries that need to apply for UL1642 report, you can directly call UNEX for testing.

For the thermal shock test, according to the requirements of the new version of UL1642 , most lithium batteries need to be charged at 10 ℃ or 45 ℃ or fully charged after cycling, and then the thermal shock test can be performed. Compared with the previous normal temperature conditions, the requirements for cells in this case are further improved, especially in low temperature environments. When the battery is charged and discharged, it is the reaction conversion between electrical energy and chemical energy, and temperature is an important factor affecting the rate of electrochemical reaction.

UL1642 lithium battery safety standard requirements:

1. These requirements include primary (non-rechargeable) and secondary (rechargeable) lithium batteries.

These batteries include metal Li or Li alloys, or Li ions, and battery packs with single-cell, two or more multi-cell series / parallel structures.

2. These requirements include technician replaceable and user replaceable applications.

3. The purpose of these requirements is to reduce the risk of fire or explosion of lithium batteries when used in products. The acceptance of these cells depends on their ability to meet the requirements of the complete product being applied.

4. These requirements also tend to reduce the hazard to human beings posed by user-replaced Li batteries due to fire or explosion.

5. These requirements cover technician-replaceable lithium batteries containing Li ≤ 5g . For lithium batteries containing more than 5g Li , even if they can meet this regulation, further tests and inspections are required to determine whether they can be applied.

6. These requirements cover user-replaceable lithium batteries containing ≤ 4g of metallic lithium and ≤ 1g of metallic lithium per cell. The battery contains more than 4g of metal lithium or more than 1g of metal lithium in each cell requires further testing and verification to determine whether it can be practically applied.

7. This requirement does not include toxic hazards caused by ingestion of lithium batteries and their components , nor does it include injuries to humans when the battery is cut.

8. When some features, characteristics or parts, materials or the whole system of the product are different from those required by this standard, as long as it involves fire, electric shock, and may cause injury to people, appropriate additional parts and end products should be used An assessment is required to ensure an acceptable level of safety.