kSIST FprEN IEC 60086-2-2:2026

Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries

Primärbatterien - Teil 2-2: Physikalische und elektrische Eigenschaften von Lithiumbatterien

Piles électriques - Partie 2-2: Spécifications physiques et électriques des piles au lithium

Primarne baterije - 2-2. del: Fizikalne in električne značilnosti (specifikacije) za litijeve baterije

General Information

• Status: Not Published
• Public Enquiry End Date: 28-Nov-2024
• ICS: 29.220.10 - Primary cells and batteries
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 24-Dec-2025
• Due Date: 11-Feb-2026
• Directive: 2023/1542 - Regulation (EU) 2023/1542 of the European Parliament and of the Council of 12 July 2023 concerning batteries and waste batteries, amending Directive 2008/98/EC and Regulation (EU) 2019/1020 and repealing Directive 2006/66/EC (Text with EEA relevance)
• Mandate: M/579 - COMMISSION IMPLEMENTING DECISION of 7.12.2021 on a standardisation request to the European standardisation organisations as regards performance, safety and sustainability requirements for batteries
• Ref Project: FprEN IEC 60086-2-2:2025 - Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries

Overview

FprEN IEC 60086-2-2:2025 - Primary batteries: Part 2-2: Physical and electrical specifications of lithium batteries specifies the form, fit and electrical performance requirements for standardized non‑aqueous (lithium) primary cells and batteries. Part of the IEC 60086 series, this document provides dimensional drawings, discharge test conditions and pass/fail performance criteria for many common lithium formats (coin/button cells, specialty cylindrical and multi‑cell types). It complements IEC 60086‑1 (general requirements) and is intended for use by battery manufacturers, device designers and test laboratories.

Key topics and technical requirements

• Physical dimensions and symbols: Detailed dimensional drawings and tolerances for multiple categories and individual battery types (e.g., FR10G445, FR14505, CR‑series coin cells, BR variants, 2CR and CR‑P2 formats).
• Battery categories: Organized specifications across Category 1–6 batteries with dedicated figures and tables for each group and many individual part designations.
• Discharge test conditions: Defined test regimes and loads (including updated test loads - e.g., digital audio test load for FR10G445 revised from 50 mA to 75 mA) and criteria for discharge performance and mean discharge (MAD) requirements.
• Electrical limits and voltages: Nominal and open‑circuit voltage definitions and specific limits (notably maximum OCV changes for FR10G445 and FR14505 from 1.83 V to 1.90 V in this edition).
• Dimensional stability and test validity: Rules for verifying dimensional conformity and conditions under which discharge testing is considered valid.
• Annexes and support material: Informative annexes providing tabulation by application, cross‑reference indexes, and a compliance checklist to aid implementation.

Practical applications and who uses it

• Battery manufacturers use the standard to design, specify and label lithium primary cells so they meet internationally recognized form, fit and electrical performance expectations.
• Device and product designers (OEMs) rely on the defined dimensions and performance tests to ensure compatibility and predictable battery behaviour in consumer electronics, portable lighting, toys, key fobs, cameras and sensors.
• Test laboratories and conformity assessors apply the discharge procedures and pass/fail criteria for certification, product acceptance testing and quality control.
• Procurement, standards bodies and regulators use the standard to define contract specifications, regulatory references and interoperability requirements.

Related standards

• IEC 60086‑1 - Primary batteries: General requirements
• IEC 60086‑2‑1 - Physical and electrical specifications of aqueous electrolyte (button) batteries
• IEC 60086‑4 and IEC 62281 - Safety of primary batteries and transport/packaging guidance
• ISO 1101 - Geometrical product specification (tolerancing)

This edition is a technical revision of IEC 60086‑2 and includes updated test loads, voltage limits and additional application tests to reflect current lithium primary battery technology. Keywords: IEC 60086‑2‑2, lithium batteries, primary batteries, battery dimensions, discharge test, coin cell, button cell, physical and electrical specifications.

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 60086-2-2:2024
01-november-2024
Primarne baterije - 2-2. del: Fizikalne in električne značilnosti (specifikacije) za
litijeve baterije
Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries
Piles électriques - Partie 2-2: Spécifications physiques et électriques des piles au lithium
Ta slovenski standard je istoveten z: prEN IEC 60086-2-2:2024
ICS:
29.220.10 Primarni členi in baterije Primary cells and batteries
oSIST prEN IEC 60086-2-2:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 60086-2-2:2024
oSIST prEN IEC 60086-2-2:2024
35/1551/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60086-2-2 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-09-06 2024-11-29
SUPERSEDES DOCUMENTS:
35/1532/CD, 35/1538A/CC
IEC TC 35 : PRIMARY CELLS AND BATTERIES
SECRETARIAT: SECRETARY:
Japan Mr Takao Uyama
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 3C,TC 21,SC 21A,TC 61,TC 108
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 60086-2-2:2024
2 IEC 60086-2-2 ED1 © IEC 2024
1 CONTENTS
2 CONTENTS . 2
3 FOREWORD . 4
4 INTRODUCTION . 6
5 1 Scope . 7
6 2 Normative references . 7
7 3 Terms and definitions . 7
8 4 Battery dimensions, symbols . 9
9 5 Dimensional stability . 9
10 6 Validity of testing . 9
11 7 Constitution of the battery specification tables . 9
12 8 Physical and electrical specifications . 11
13 8.1 Category 1 batteries . 11
14 8.1.1 General . 11
15 8.1.2 Category 1 – Void . 12
16 8.1.3 Category 1 – Specification: FR10G445 . 12
17 8.1.4 Category 1 – Specification: FR14505 . 13
18 8.2 Category 2 batteries – Specifications: CR14250, CR15H270, CR17345,
19 CR17450, BR17335 . 14
20 8.3 Category 3 battery – Specification: CR11108 . 15
21 8.4 Category 4 batteries . 15
22 8.4.1 General . 15
23 8.4.2 Category 4 – Specifications: CR1025, CR1216, CR1220, CR1225,
24 CR1616, CR2012, CR1620, CR2016, CR2412, CR1632, CR2025,
25 CR2320, CR2032, CR2330, CR2430, CR2354, CR3032, CR2450,
26 CR2477, BR1225, BR2016, BR2320, BR2325, BR3032 . 16
27 8.5 Category 5 battery – Specification: 2CR13252 . 18
28 8.6 Category 6 batteries . 19
29 8.6.1 Category 6 – Specification: CR-P2 . 19
30 8.6.2 Category 6 – Specification: 2CR5 . 20
31 Annex A (informative) Tabulation of batteries by application . 21
32 Annex B (informative) Cross-reference index . 23
33 Annex C (informative) Index reference to subclause . 25
34 Annex D (informative) Compliance checklist . 26
35 Bibliography . 27
37 Figure 1 – Dimensional drawing: Category 1 . 11
38 Figure 2 – Dimensional drawing: FR10G445 . 12
39 Figure 3 – Dimensional drawing: FR14505 . 13
40 Figure 4 – Dimensional drawing: CR14250, CR15H270, CR17345, CR17450, BR17335 . 14
41 Figure 5 – Dimensional drawing: CR11108 . 15
42 Figure 6 – Dimensional drawing: Category 4 . 15
43 Figure 7 – Dimensional drawing: CR1025, CR1216, CR1220, CR1225, CR1616,
44 CR2012, CR1620, CR2016, CR2412, CR1632, CR2025, CR2320, CR2032, CR2330,
45 CR2430, CR2354, CR2477, CR3032, CR2450, BR1225, BR2016, BR2320, BR2325,
46 BR3032 . 16

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47 Figure 8 – Dimensional drawing: 2CR13252 . 18
48 Figure 9 – Dimensional drawing: CR-P2 . 19
49 Figure 10 – Dimensional drawing: 2CR5 . 20
51 Table A.1 – Digital audio . 21
52 Table A.2 – Digital still camera . 21
53 Table A.3 – Electronic key . 21
54 Table A.4 – High intensity lighting . 21
55 Table A.5 – Photo . 21
56 Table A.6 – Portable lighting (LED) . 22
57 Table A.7 – Radio/clock/remote control . 22
58 Table A.8 – Toy (motor) . 22
59 Table B.1 – Category 1 batteries. 23
60 Table B.2 – Category 2 batteries. 23
61 Table B.3 – Category 4 batteries. 24
62 Table B.4 – Category 6 batteries. 24
63 Table C.1 – Index . 25
64 Table D.1 – Summary of specified items . 26
oSIST prEN IEC 60086-2-2:2024
4 IEC 60086-2-2 ED1 © IEC 2024
67 INTERNATIONAL ELECTROTECHNICAL COMMISSION
68 ____________
70 PRIMARY BATTERIES –
72 Part 2-2:
73 Physical and electrical specifications
74 of lithium batteries
76 FOREWORD
77 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
78 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
79 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
80 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
81 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
82 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
83 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
84 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
85 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
86 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
87 consensus of opinion on the relevant subjects since each technical committee has representation from all
88 interested IEC National Committees.
89 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
90 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
91 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
92 misinterpretation by any end user.
93 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
94 transparently to the maximum extent possible in their national and regional publications. Any divergence between
95 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
96 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
97 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
98 services carried out by independent certification bodies.
99 6) All users should ensure that they have the latest edition of this publication.
100 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
101 members of its technical committees and IEC National Committees for any personal injury, property damage or
102 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
103 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
104 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
105 indispensable for the correct application of this publication.
106 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
107 rights. IEC shall not be held responsible for identifying any or all such patent rights.
108 International Standard IEC 60086-2-2 has been prepared by IEC technical committee 35:
109 Primary cells and batteries.
110 This first edition cancels and replaces the fourteenth edition of IEC 60086-2 published in 2021.
111 This edition constitutes a technical revision.
112 This edition includes the following significant technical changes with respect to the previous
113 edition:
114 a) separation of batteries with aqueous electrolyte into a separate Part 2-1: Physical and
115 electrical specifications;
116 b) maximum open circuit voltage of FR10G445 and FR14505 was changed from 1,83 to 1,90
117 V;
118 c) load of digital audio test for FR10G445 was changed from 50mA to 75mA and MAD was
119 modified;
120 d) portable lighting test was added for FR10G445;
121 e) motor/toy and radio /clock /remote control test was added for FR14505;

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122 f) Annex D for common designation of IEC 60086-2:2021 was moved to IEC 60086-1, as
123 Annex H.
124 g)
125 h) The text of this International Standard is based on the following documents:
CD Report on voting
35/XXXX/CD 35/XXXX/XX
127 Full information on the voting for the approval of this International Standard can be found in the
128 report on voting indicated in the above table.
129 The language used for the development of this International Standard is English.
130 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
131 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
132 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
133 described in greater detail at www.iec.ch/standardsdev/publications.
134 A list of all parts in the IEC 60086 series, under the general title Primary batteries, can be found
135 on the IEC website.
136 The committee has decided that the contents of this document will remain unchanged until the
137 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
138 the specific document. At this date, the document will be
139 • reconfirmed,
140 • withdrawn,
141 • replaced by a revised edition, or
142 • amended.
oSIST prEN IEC 60086-2-2:2024
6 IEC 60086-2-2 ED1 © IEC 2024
145 INTRODUCTION
146 The technical content of this part of IEC 60086 provides physical dimensions, discharge test
147 conditions and discharge performance requirements. IEC 60086-2-1 and IEC 60086-2-2
148 complement the general information and requirements of IEC 60086-1. Safety information of
149 IEC 60086-2-2 is available in IEC 60086-4 and IEC 62281.
150 This part was prepared to benefit primary battery users, device designers and battery
151 manufacturers by furnishing the specifics of form, fit and function for individual standardized
152 primary cells and batteries. Over the years, this part has been changed to improve its contents
153 and may again be revised in due course in the light of comments made by national committees
154 and experts on the basis of practical experience and changing technology.
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157 PRIMARY BATTERIES –
159 Part 2-2:
160 Physical and electrical specifications
161 of lithium batteries
165 1 Scope
166 This part of IEC 60086 is applicable to primary batteries which are based on standardised
167 lithium (non-aqueous) electrochemical systems.
168 It specifies
169 – the physical dimensions,
170 – the discharge test conditions and discharge performance requirements.
171 2 Normative references
172 The following documents are referred to in the text in such a way that some or all of their content
173 constitutes requirements of this document. For dated references, only the edition cited applies.
174 For undated references, the latest edition of the referenced document (including any
175 amendments) applies.
176 IEC 60086-1, Primary batteries – Part 1: General
177 ISO 1101, Geometrical product specifications (GPS) – Geometrical tolerancing – Tolerances of
178 form, orientation, location and run-out
179 3 Terms and definitions
180 For the purposes of this document, the terms and definitions given in IEC 60086-1 and the
181 following apply.
182 ISO and IEC maintain terminological databases for use in standardization at the following
183 addresses:
184 • IEC Electropedia: available at https://www.electropedia.org
185 • ISO Online browsing platform: available at https://www.iso.org/obp
186 3.1
187 primary cell
188 primary battery
189 cell or battery that is not designed to be electrically recharged
190 3.2
191 round cell
192 round battery
193 cell or battery with circular cross section button cell or battery
194 3.3
195 button cell
196 button battery
197 small round cell or battery where the overall height is less than the diameter, containing
198 aqueous electrolyte
199 Note 1 to entry: For the specifications, refer to IEC 60086-2-1.

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8 IEC 60086-2-2 ED1 © IEC 2024
200 3.4
201 coin cell
202 coin battery
203 lithium button cell
204 lithium button battery
205 small round cell or battery where the overall height is less than the diameter, containing non-
206 aqueous electrolyte
207 Note 1 to entry: The nominal voltage of lithium batteries is typically greater than 2 V.
208 3.5
209 nominal voltage
210 U
n
211 suitable approximate value of the voltage used to designate or identify a cell, a battery or an
212 electrochemical system
213 [SOURCE: IEC 60050-482:2004, 482-03-31, modified – addition of U .]
n
214 3.6
215 open-circuit voltage
216 OCV
217 voltage across the terminals of a cell or battery when it is off discharge
218 3.7
219 end-point voltage
220 EV
221 specified voltage of a battery at which the battery discharge is terminated
222 [SOURCE:IEC 60050-482:2004, 482-03-30]
223 3.8
224 minimum average duration
225 MAD
226 minimum average time on discharge which is met by a sample of batteries
227 Note 1 to entry: The discharge test is carried out according to the specified methods or standards and designed to
228 show conformity with the standard applicable to the battery types.
229 3.9
230 application test
231 simulation of the actual use of a battery in a specific application
232 3.10
233 service output
234 service life, or capacity, or energy output of a battery under specified conditions of discharge
235 3.11
236 service output test
237 test designed to measure the service output of a battery
238 Note 1 to entry: A service output test may be prescribed, for example, when
239 a) an application test is too complex to replicate;
240 b) the duration of an application test would make it impractical for routine testing purposes.
241 3.12
242 terminal
243 conductive parts of a battery providing connection to an external circuit
244 [SOURCE:IEC 60050-482:2004, 482-02-22, modified – “conductive part of a device, electric
245 circuit or electric network, provided” replaced by to “conductive parts of a battery providing” and
246 “device, electric circuit or electric network to one or more external conductor” replaced by “an
247 external circuit”.]
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248 4 Battery dimensions, symbols
249 The symbols used to denote the various dimensions are as follows:
250 h maximum overall height of the battery;
251 h minimum distance between the flats of the positive and negative contacts;
252 h minimum projection of the flat positive contact;
253 h maximum recess of the negative flat contact surface;
254 h minimum projection of the flat negative contact;
255 d maximum and minimum diameters of the battery;
256 d minimum diameter of the flat positive contact;
257 d maximum diameter of the positive contact within the specified projection height;
258 d minimum diameter of the flat negative contact;
259 d maximum diameter of the negative contact within the specified projection height;
260 d minimum outer diameter of the negative flat contact surface;
261 d maximum inner diameter of the negative flat contact surface;
262 ⌀P concentricity of the positive contact.
263 5 Dimensional stability
264 Refer to IEC 60086-1 for dimensional stability.
265 6 Validity of testing
266 Portable primary batteries shall be subjected to the tests, as required in the IEC 60086 series.
267 Testing remains valid until a design change or requirement revision has been made. Retesting
268 is required when:
269 a battery specification changes by more than 0,1 g or 20 % mass, whichever is greater, for the
270 cathode, anode or electrolyte;
271 a battery specification changes
...