IEC 60086-3:2021 pdf download

IEC 60086-3:2021 pdf download.Primary batteries – Part 3: Watch batteries
1 Scope
This part of IEC 60086 specifies dimensions, designation, methods of tests and requirements for primary batteries for watches. In several cases, a menu of test methods is given. When presenting battery electrical characteristics and/or performance data, the manufacturer specifies which test method was used.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60086-1, Primary batteries – Part 1: General IEC 60086-2, Primary batteries – Part 2: Physical and electrical specifications IEC 60086-4, Primary batteries – Part 4: Safety of lithium batteries IEC 60086-5, Primary batteries – Part 5: Safety of batteries with aqueous electrolyte
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60086-1 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:  IEC Electropedia: available at http://www.electropedia.org/ ISO Online browsing platform: available at http://www.iso.org/obp 3.1 capacitive reactance part of the internal resistance that leads to a voltage drop during the first seconds under load 3.2 capacity electric charge (quantity of electricity) which a cell or battery can deliver under specified discharge conditions Note 1 to entry: The SI unit for electric charge is the coulomb (1 C = 1 As) but, in practice, capacity is usually expressed in ampere hours (Ah). 3.3 fresh battery undischarged battery 60 days maximum after date of manufacture 3.4 ohmic drop part of the internal resistance that leads to a voltage drop immediately after switching the load on
4 Physical requirements
4.1 Battery dimensions, symbols and size codes Dimensions and tolerances of batteries for watches shall be in accordance with Figure 1, Table 1 and Table 2. The dimensions of the batteries shall be tested in accordance with 7.1. The symbols used to denote the various dimensions in Figure 1 are in accordance with IEC 60086-2:2021, Clause 4.4.6 Deformation Refer to IEC 60086-1 for dimensional stability. 4.7 Leakage Undischarged batteries and, if required, batteries tested according to 7.2.6 shall be examined as stated in 7.3. The acceptable number of defects shall be agreed between the manufacturer and the purchaser. 4.8 Marking General 4.8.1 The battery and/or its packaging must be marked with the following: a) designation according to normative Annex A, or common; b) expiration of a recommended usage period or year and month or week of manufacture. The year and month or week of manufacture may be in code. The code is composed of the last digit of the year and of a number indicating the month. October, November and December should be represented by the letters O, Y and Z respectively; EXAMPLE 91: January 2019; 9Y: November 2019. c) polarity of the positive ( +) terminal; d) nominal voltage; e) name or trade mark of the supplier; f) cautionary advice; g) caution for ingestion of batteries shall be given. Refer to IEC 60086-4:2019, 7.2 a) and 9.2, and IEC 60086-5:2016, 7.1 l) and 9.2, for details. NOTE Examples of the common designations can be found in Annex D of IEC 60086-2:2015. Battery marking should not impede electrical contact. The designation and the polarity shall be marked on the battery. All other markings may be given on the packing instead of the battery.