Subject 1642

Bulletin Dated: November 3, 2008

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Lithium Batteries, UL 1642, are being proposed:

1. Revise 2.3.2 to Explain Evaluation of Components Used Inside a Cell or Battery

2. Revise "Fully Discharged" and Add "Completely Discharged" to the Glossary

3. Removal of Redundant Tests and Clarification of User Replaceable

4. Removal of Redundant Information for Sample Requirements

5. Temperature Monitoring for Technician Safety

6. Clarification of the Short Circuit Test

7. Clarification of the Abnormal Charging Test

8. Clarification of "Ultimate Results Criteria"

9. Criteria for Crush Test

10. Conversion to SI Units and Inclusion of Tolerances

11. Correction of Units in Temperature Measurement and Additional Criteria for Heating Test for Additional Battery Chemistries

12. New Section 22 for Primary Battery Markings

13. New Section 23 for Secondary Battery Markings

14. Addition of Manufacturing Tests as New Section 24