UL 4200A-2020 pdf download – Products Incorporating Button or Coin Cell Batteries of Lithium Technologies.
6.3.4 Crush test 6.3.4.1 The sample is to be supported by a fixed rigid supporting surface, in positions likely to produce the most adverse results as long as the position can be self-supported. A crushing force of 330 ±5 N (74.2 ±1.1 lbf) is applied for a period of 10 s to the exposed surfaces. The force is to be applied by a flat surface measuring approximately 100 by 250 mm (3.9 by 9.8 in). 6.3.5 Compliance 6.3.5.1 After the tests of 6.3.2 – 6.3.4, a force of 45 ±1 N (10.1 ±0.2 lbf) is applied for 10 s to the battery compartment door/cover or enclosure by a rigid test finger according to Test Probe 11 of the Standard for Protection of Persons and Equipment by Enclosures – Probes for Verification, IEC 61032. The probe is applied at the most unfavorable place and in the most unfavorable direction. The force shall be applied in only one direction at a time. A battery compartment door/cover shall not open and shall remain functional. The battery shall not be accessible. 6.4 Secureness test 6.4.1 Button/coin cells that are not intended for user removal or replacement, and are accessible based on 5.3 and 5.4, shall comply with the following test. Compliance is checked by application of a test hook as shown in Figure 6.3, with a force of 20 ±2 N (4.5 ±0.4 lbf), directed outwards, applied for 10 s at all points where this is possible. During the test, the button/coin cell shall not become separated from the product.
7 General 7.1 Markings for button/coin cells shall be permanent, in letters not less than 1.6-mm (0.06-in) high. 7.2 Products incorporating a replaceable button/coin cell battery shall be marked with the safety alert symbol (exclamation point within a triangle) in accordance with the Standard for Product Safety Signs and Labels, ANSI Z535.4, and the words “WARNING: Chemical Burn Hazard. Keep batteries away from children. See Manual.” Exception: Where it is not possible to mark the words due to the size ofthe product, orwhere symbols are permitted by the end-use standard in lieu of the wording, the symbol alone may be placed close to the batterycompartment. INSTRUCTIONS 8 General 8.1 Product instructions shall include all of the applicable markings in Section 7. 8.2 The instructions for products with replaceable button/coin cell batteries shall identify the product containing the button/coin cell battery and state verbatim
a) The safety alert symbol (exclamation point within a triangle) in accordance with the Standard for Product Safety Signs and Labels, ANSI Z535.4, and the words “WARNING: Chemical Burn Hazard. Keep batteries away from children.”; and b) The following or equivalent: “This product contains a lithium button/coin cell battery. If a new or used lithium button/coin cell battery is swallowed or enters the body, it can cause severe internal burns and can lead to death in as little as 2 hours. Always completely secure the battery compartment. If the battery compartment does not close securely, stop using the product, remove the batteries, and keep it away from children. If you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.” 8.3 The instructions for products with replaceable button/coin cell batteries shall indicate: a) The cells shall be disposed of properly, including keeping them away from children; and b) Even used cells may cause injury.