UL 1642:2004 pdf download – Lithium Batteries
UL 1642:2004 pdf download – Lithium Batteries.
4.2.1 A user-replaceable battery shall not contain pressurized vapor or l.qul that could spray materials into the eyes or leak more than 5 milliliters of liquid when me battery casing is punctured under normal laboratory conditions, 23 ±2°C (73 ±3,6°F).
4.2 1 revised Oclober 25, 2004
4.3.1 A lithium battery shall be protected from abnormal charging currents during use. A battery tested and found acceptable for the charging current, l(see hA), under fault conditions specified by the manufacturer, shall be protected from larger charging currents in the end product application by:
a) Two blocking components, such as diodes. or
b) One blocking component and one current limiting component, such as a resistor or a fuse.
The current limiting component shall limit the charging current to one-third the value used in the Abnormal Charging Test. Section 11 A.
Exception No. 1: Charge protection in the battery circuit is not required in end product applications where a battery cannot be subjected to a charging current, such as a battery operated device.
Exception No, 2: Protection components are not required for specrfic applications where a battery has been tested and found not to have a risk of explosion.
Exception No. 3: A rechargeable battery requires only a Current limiting coniponenl, riot a blOCking component.
4.3.1 revised October 25, 2004
5,1.1 Technician-replaceable lithium cells or batteries are to be tested as described in Sections 10 — 19, Section 11 B. Forced Discharge Test, is applicable only to cells intended to be used in multicell applications such as battery packs. For multicell installations, also see 5.3.1. No tire or explosion shall occur as a result of the Short-Circuit Test. Section 10, the Shock Test. Section 14A. the Vibration Test, Section 15. the Temperature Cycling Test. Section 1 8B or me Altitude Simulation Test. Section 1 BC. Also, the temperature of an exterior cell or battery casing shall not exceed 150°C (302°F) when tested in accordance with me Short-Circuit Test, When a fire or explosion occurs as a result of me Abnormal Charging Test, Section 1 IA; Crush Test. Section 12; Impact Test, Section 13; or Heating Test. Section IBA; the use of the technician replaceable cell or battery shall be restricted to applications in which it is not exposed to, or is protected from, any conditions shown to cause a fire or explosion. Cells and batteries subjected to the Shock Test, Section 1 4A. Vibration Test, Section 15, Temperature Cyding Test. Section I 8B, and Altitude Simulation Test, Section 1 8C shall also not leak or vent. For these tests. unacceptable leakage is determined to have occurred when the resulting mass loss exceeds the values shown in Table 5.1. Venting and Leakage Mass Loss Criteria.
6,1 Fully charged pflmary cells or batteries and primary cells or batteries mat have been conditioned by partial or complete discharge, or both, are to be used for the tests described in Sections 10 — 19. The number of samples to be used in each test for a primary technician-replaceable cell or battery is shown in Table 6.1. The number of samples to be used in each test for a primary user-replaceable cell or battery is shown in Table 6.3. When a group of cells or batteries of different sizes, but similar chemistries is involved, selected sizes representative of the range are to be tested.
6.1 revis Ocioer 25, 2004
6.2 Fully charged secondary cells or batteries and secondary cells or batteries that have been conditioned by charge-discharge cyding are to be used for the tests described in Sections 10 — 19. The number of samples to be used in each test for a secondary technician-replaceable cell or battery is shown in Table 6.2. The number of samples to be used in each test for a secondary user-replaceable cell or battery is shown in Table 6.4. When a group of cells or batteries of different sizes, and similar chemistries is involved, selected sizes representative of the range are to be tested.