EN IEC 60086-2-2:2026
(Main)Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries
General Information
- Abstract
IEC 60086-2-2:2026 is applicable to primary batteries which are based on standardised lithium (non-aqueous) electrochemical systems. It specifies: - the physical dimensions, - the discharge test conditions and discharge performance requirements. This first edition cancels and replaces the fourteenth edition of IEC 60086-2 published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) separation of batteries with aqueous electrolyte into a separate Part 2-1: Physical and electrical specifications; b) maximum open circuit voltage of FR10G445 and FR14505 was changed from 1,83 to 1,90 V; c) load of digital audio test for FR10G445 was changed from 50 mA to 75 mA and MAD was modified; d) portable lighting test was added for FR10G445; e) motor/toy and radio /clock /remote control test was added for FR14505; f) in Clause 3, terms were reordered according their functions: electrochemical systems, electrochemical systems, electrical characteristics and specifications; g) Annex D for common designation of IEC 60086 2:2021 was moved to IEC 60086 1:2026, as Annex H; h) Annex E for Compliance checklist of IEC 60086 2:2021 was removed and merged into Annex J of IEC 60086 1:2026.
- Status
- Published
- Publication Date
- 17-Sep-2026
- Technical Committee
- CLC/SR 35 - Primary batteries
- Drafting Committee
- IEC/TC 35 - IEC_TC_35
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 18-Sep-2026
- Due Date
- 31-Oct-2024
- Completion Date
- 18-Sep-2026
Overview
EN IEC 60086-2-2:2026 is a European and international standard from the CLC and IEC that specifies the physical and electrical specifications of primary lithium batteries (non-aqueous systems). This standard defines the essential physical dimensions, discharge test conditions, and performance requirements needed to ensure interchangeability and consistent performance of standard lithium primary batteries. It replaces and updates previous editions (notably IEC 60086-2:2021), introducing significant technical changes and clarifications for manufacturers, device designers, and end-users.
Key Topics
- Scope: Applies to primary batteries using standardized lithium (non-aqueous) electrochemical systems.
- Physical Requirements: Specifies dimensions and battery construction details, supporting global compatibility and safety.
- Electrical Performance: Details conditions and requirements for discharge tests, including open-circuit voltage and minimum average duration (MAD).
- Technical Changes:
- Separation of aqueous electrolyte batteries (now covered in Part 2-1).
- Updated maximum open-circuit voltages for key lithium types such as FR10G445 and FR14505.
- Adjusted discharge test loads and introduction of new performance tests for specific battery sizes.
- Consolidation and rearrangement of definitions and informative annexes for improved usability.
Product Categories
Batteries are categorized by shape and specification:
- Category 1: Cylindrical lithium batteries (e.g., FR10G445 “AAA”, FR14505 “AA”).
- Category 2-4: Lithium coin and button cells (e.g., CR2032, BR1225).
- Categories 5 & 6: Miscellaneous lithium batteries and unique form factors (e.g., 2CR5, CR-P2).
Applications
Adhering to EN IEC 60086-2-2:2026 ensures lithium battery performance and compatibility in a range of consumer and industrial electronics, including:
- Digital cameras and photography equipment
- Portable and high-intensity lighting (LED flashlights, professional lamps)
- Digital audio devices
- Remote controls, clocks, and radios
- Electronic keys and access devices
- Motorized toys and electronic gadgets
- Backup memory and RTC modules
- Medical instruments and critical safety devices
Reliability in these applications depends on standardized battery sizes, proper fit, and predictable discharge characteristics as defined by the standard.
Related Standards
To ensure complete compliance and safety for lithium batteries, the following standards are closely related or referenced within EN IEC 60086-2-2:
- IEC 60086-1: General requirements for primary batteries (fundamental definitions and general information)
- IEC 60086-2-1: Physical and electrical specifications for primary batteries with aqueous electrolytes (for other primary battery chemistries)
- IEC 60086-4: Safety of lithium batteries (complementary safety and handling guidance)
- IEC 62281: Safety of portable lithium primary batteries during transport
- ISO 1101: Geometrical product specifications - used for precise measurement of battery dimensions
Practical Value
Implementing EN IEC 60086-2-2:2026 helps battery manufacturers, electronics designers, and quality control professionals:
- Assure interchangeability and reliable performance across devices globally
- Facilitate regulatory compliance and faster market access
- Minimize safety risks due to standardized physical and electrical properties
- Streamline procurement and logistics by unifying battery specifications
Keywords: primary lithium batteries, EN IEC 60086-2-2, battery standards, battery dimensions, discharge test, lithium battery performance, battery specifications, electrical test, international standard, consumer electronics, CLC, IEC 60086-1, safety standards.
Relations
- Replaces
EN IEC 60086-2:2021/AC:2026-04 - Primary batteries - Part 2: Physical and electrical specifications - Effective Date
- 23-Jun-2026
- Effective Date
- 23-Jun-2026
- Replaces
EN IEC 60086-2:2021/AC:2022-07 - Primary batteries - Part 2: Physical and electrical specifications - Effective Date
- 23-Jun-2026
- Effective Date
- 01-Sep-2026
- Effective Date
- 01-Sep-2026
- Effective Date
- 22-Sep-2026
- Effective Date
- 22-Sep-2026
- Effective Date
- 22-Sep-2026
- Effective Date
- 22-Sep-2026
- Effective Date
- 22-Sep-2026
- Referred By
EN 60086-5:2011 - Primary batteries - Part 5: Safety of batteries with aqueous electrolyte - Effective Date
- 22-Sep-2026
- Effective Date
- 22-Sep-2026
- Effective Date
- 22-Sep-2026
- Referred By
EN 60086-5:2016 - Primary batteries - Part 5: Safety of batteries with aqueous electrolyte - Effective Date
- 22-Sep-2026
- Effective Date
- 22-Sep-2026
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Frequently Asked Questions
EN IEC 60086-2-2:2026 is a standard published by CLC. Its full title is "Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries". This standard covers: IEC 60086-2-2:2026 is applicable to primary batteries which are based on standardised lithium (non-aqueous) electrochemical systems. It specifies: - the physical dimensions, - the discharge test conditions and discharge performance requirements. This first edition cancels and replaces the fourteenth edition of IEC 60086-2 published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) separation of batteries with aqueous electrolyte into a separate Part 2-1: Physical and electrical specifications; b) maximum open circuit voltage of FR10G445 and FR14505 was changed from 1,83 to 1,90 V; c) load of digital audio test for FR10G445 was changed from 50 mA to 75 mA and MAD was modified; d) portable lighting test was added for FR10G445; e) motor/toy and radio /clock /remote control test was added for FR14505; f) in Clause 3, terms were reordered according their functions: electrochemical systems, electrochemical systems, electrical characteristics and specifications; g) Annex D for common designation of IEC 60086 2:2021 was moved to IEC 60086 1:2026, as Annex H; h) Annex E for Compliance checklist of IEC 60086 2:2021 was removed and merged into Annex J of IEC 60086 1:2026.
IEC 60086-2-2:2026 is applicable to primary batteries which are based on standardised lithium (non-aqueous) electrochemical systems. It specifies: - the physical dimensions, - the discharge test conditions and discharge performance requirements. This first edition cancels and replaces the fourteenth edition of IEC 60086-2 published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) separation of batteries with aqueous electrolyte into a separate Part 2-1: Physical and electrical specifications; b) maximum open circuit voltage of FR10G445 and FR14505 was changed from 1,83 to 1,90 V; c) load of digital audio test for FR10G445 was changed from 50 mA to 75 mA and MAD was modified; d) portable lighting test was added for FR10G445; e) motor/toy and radio /clock /remote control test was added for FR14505; f) in Clause 3, terms were reordered according their functions: electrochemical systems, electrochemical systems, electrical characteristics and specifications; g) Annex D for common designation of IEC 60086 2:2021 was moved to IEC 60086 1:2026, as Annex H; h) Annex E for Compliance checklist of IEC 60086 2:2021 was removed and merged into Annex J of IEC 60086 1:2026.
EN IEC 60086-2-2:2026 is classified under the following ICS (International Classification for Standards) categories: 29.220.10 - Primary cells and batteries. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 60086-2-2:2026 has the following relationships with other standards: It is inter standard links to EN IEC 60086-2:2021/AC:2026-04, EN IEC 60086-2:2021, EN IEC 60086-2:2021/AC:2022-07, EN ISO 1101:2017, FprEN IEC 60086-1:2025, EN 50272-4:2007, EN 60086-4:2015, EN 61951-1:2017, EN 61951-2:2017, EN IEC 60086-4:2019, EN 60086-5:2011, EN IEC 60086-3:2021, EN IEC 61563:2021, EN 60086-5:2016, EN IEC 60086-4:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 60086-2-2:2026 is associated with the following European legislation: EU Directives/Regulations: 2023/1542; Standardization Mandates: M/579. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN IEC 60086-2-2:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2026
Nadomešča:
SIST EN IEC 60086-2:2021
SIST EN IEC 60086-2:2021/AC:2022
SIST EN IEC 60086-2:2021/AC:2026
Primarne baterije - 2-2. del: Fizikalne in električne specifikacije za litijeve baterije
(IEC 60086-2-2:2026)
Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries (IEC
60086-2-2:2026)
Primärbatterien - Teil 2-2: Physikalische und elektrische Eigenschaften von
Lithiumbatterien (IEC 60086-2-2:2026)
Piles électriques - Partie 2-2: Spécifications physiques et électriques des piles au lithium
(IEC 60086-2-2:2026)
Ta slovenski standard je istoveten z: EN IEC 60086-2-2:2026
ICS:
29.220.10 Primarni členi in baterije Primary cells and batteries
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60086-2-2
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2026
ICS 29.220.10 Supersedes EN IEC 60086-2:2021; EN IEC 60086-
2:2021/AC:2022-07; EN IEC 60086-2:2021/AC:2026-04
English Version
Primary batteries - Part 2-2: Physical and electrical specifications
of lithium batteries
(IEC 60086-2-2:2026)
Piles électriques - Partie 2-2: Spécifications physiques et Primärbatterien - Teil 2-2: Physikalische und elektrische
électriques des piles au lithium Eigenschaften von Lithiumbatterien
(IEC 60086-2-2:2026) (IEC 60086-2-2:2026)
This European Standard was approved by CENELEC on 2026-08-05. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60086-2-2:2026 E
European foreword
The text of document 35/1592/FDIS, future edition 1 of IEC 60086-2-2, prepared by TC 35 "Primary
cells and batteries" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-09-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-09-30
document have to be withdrawn
This document supersedes EN IEC 60086-2:2021 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60086-2-2:2026 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60086-2-1 NOTE Approved as EN IEC 60086-2-1
IEC 60086-3 NOTE Approved as EN IEC 60086-3
IEC 60086-4 NOTE Approved as EN IEC 60086-4
IEC 62281 NOTE Approved as EN IEC 62281
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60086-1 2026 Primary batteries - Part 1: General EN IEC 60086-1 —
ISO 1101 - Geometrical product specifications (GPS) - EN ISO 1101 -
Geometrical tolerancing - Tolerances of
form, orientation, location and run-out
Under preparation. Stage at the time of publication: FprEN IEC 60086-1:2026.
IEC 60086-2-2 ®
Edition 1.0 2026-06
INTERNATIONAL
STANDARD
Primary batteries -
Part 2-2: Physical and electrical specifications of lithium batteries
ICS 29.220.10 ISBN 978-2-8327-1108-8
IEC 60086-2-2:2026-06(en)
IEC 60086-2-2:2026 © IEC 2026
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Battery dimensions – Symbols . 8
5 Dimensional stability . 8
6 Validity of testing . 8
7 Constitution of the battery specification tables . 9
8 Physical and electrical specifications . 10
8.1 Category 1 batteries . 10
8.1.1 General . 10
8.1.2 Category 1 – Void . 11
8.1.3 Category 1 – Specification: FR10G445 . 11
8.1.4 Category 1 – Specification: FR14505 . 12
8.2 Category 2 batteries – Specifications: CR14250, CR15H270, CR17345,
CR17450, BR17335 . 13
8.3 Category 3 battery – Specification: CR11108 . 14
8.4 Category 4 batteries . 15
8.4.1 General . 15
8.4.2 Category 4 – Specifications: CR1025, CR1216, CR1220, CR1225,
CR1616, CR2012, CR1620, CR2016, CR2412, CR1632, CR2025,
CR2320, CR2032, CR2330, CR2430, CR2354, CR3032, CR2450,
CR2477, BR1225, BR2016, BR2320, BR2325, BR3032 . 15
8.5 Category 5 battery – Specification: 2CR13252 . 18
8.6 Category 6 batteries . 19
8.6.1 Category 6 – Specification: CR-P2 . 19
8.6.2 Category 6 – Specification: 2CR5 . 20
Annex A (informative) Tabulation of batteries by application . 22
Annex B (informative) Cross-reference index . 24
Annex C (informative) Index reference to subclause . 26
Bibliography . 27
Figure 1 – Dimensional drawing: Category 1 . 10
Figure 2 – Dimensional drawing: FR10G445 . 11
Figure 3 – Dimensional drawing: FR14505 . 12
Figure 4 – Dimensional drawing: CR14250, CR15H270, CR17345, CR17450, BR17335 . 13
Figure 5 – Dimensional drawing: CR11108 . 14
Figure 6 – Dimensional drawing: Category 4 . 15
Figure 7 – Dimensional drawing: CR1025, CR1216, CR1220, CR1225, CR1616,
CR2012, CR1620, CR2016, CR2412, CR1632, CR2025, CR2320, CR2032, CR2330,
CR2430, CR2354, CR3032, CR2450, CR2477, BR1225, BR2016, BR2320, BR2325,
BR3032 . 16
Figure 8 – Dimensional drawing: 2CR13252 . 18
Figure 9 – Dimensional drawing: CR-P2 . 19
IEC 60086-2-2:2026 © IEC 2026
Figure 10 – Dimensional drawing: 2CR5 . 20
Table 1 – Voltage and application test requirements for FR10G445 . 11
Table 2 – Voltage and application test requirements for FR14505 . 12
Table 3 – Voltage and application test requirements for CR14250, CR15H270,
CR17345, CR17450 and BR17335 . 13
Table 4 – Voltage and application test requirements for CR11108 . 14
Table 5 – Voltage and application test requirements for CR1025, CR1216, CR1220,
CR1225, CR1616, CR2012, CR1620, CR2016, CR2412, CR1632, CR2025, CR2320,
CR2032, CR2330, CR2430, CR2354, CR3032, CR2450, CR2477, BR1225, BR2016,
BR2320, BR2325 and BR3032 . 17
Table 6 – Voltage and application test requirements for 2CR13252. 18
Table 7 – Voltage and application test requirements for CR-P2 . 20
Table 8 – Voltage and application test requirements for 2CR5 . 21
Table A.1 – Digital audio . 22
Table A.2 – Digital still camera . 22
Table A.3 – Electronic key . 22
Table A.4 – High intensity lighting . 22
Table A.5 – Photo . 22
Table A.6 – Portable lighting (LED) . 23
Table A.7 – Radio/clock/remote control . 23
Table A.8 – Toy (motor) . 23
Table B.1 – Category 1 batteries. 24
Table B.2 – Category 2 batteries. 24
Table B.3 – Category 4 batteries. 25
Table B.4 – Category 6 batteries. 25
Table C.1 – Index . 26
IEC 60086-2-2:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Primary batteries -
Part 2-2: Physical and electrical specifications of lithium batteries
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60086-2-2 has been prepared by IEC technical committee 35: Primary cells and batteries.
It is an International Standard.
This first edition cancels and replaces the fourteenth edition of IEC 60086-2 published in 2021.
This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the physical and electrical specifications of IEC 60086-2:2021 were divided into two new
standards based on their electrolyte types. IEC 60086-2-1 provides specifications for
standardized primary batteries containing aqueous electrolyte. IEC 60086-2-2 covers
specifications for standardized lithium-based primary batteries;
b) maximum open circuit voltage of FR10G445 and FR14505 was changed from 1,83 to 1,90 V;
IEC 60086-2-2:2026 © IEC 2026
c) load of digital audio test for FR10G445 was changed from 50 mA to 75 mA and MAD was
modified;
d) portable lighting test was added for FR10G445;
e) motor/toy and radio /clock /remote control test was added for FR14505;
f) in Clause 3, terms were reordered according to their functions: basic terms, electrochemical
systems, electrical characteristics and specifications;
g) Annex D for common designation of IEC 60086-2:2021 was moved to IEC 60086-1:2026, as
Annex H;
h) Annex E for Compliance checklist of IEC 60086-2:2021 was removed and merged into
Annex J of IEC 60086-1:2026.
The text of this International Standard is based on the following documents:
Draft Report on voting
35/1592/FDIS 35/1598/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 60086 series, under the general title Primary batteries, can be found
on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
IEC 60086-2-2:2026 © IEC 2026
INTRODUCTION
The technical content of this part of IEC 60086 provides physical dimensions, discharge test
conditions and discharge performance requirements. IEC 60086-2-1 and IEC 60086-2-2
complement the general information and requirements of IEC 60086-1. Safety information of
IEC 60086-2-2 is available in IEC 60086-4 and IEC 62281.
This document was prepared to benefit primary battery users, device designers and battery
manufacturers by furnishing the specifics of form, fit and function for individual standardized
primary cells and batteries. Over the years, this document has been changed to improve its
contents and might again be revised in due course in the light of comments made by national
committees and experts on the basis of practical experience and changing technology.
IEC 60086-2-2:2026 © IEC 2026
1 Scope
This part of IEC 60086 is applicable to primary batteries which are based on standardised
lithium (non-aqueous) electrochemical systems.
It specifies
– the physical dimensions,
– the discharge test conditions and discharge performance requirements.
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 60086-1:2026, Primary batteries - Part 1: General
ISO 1101, Geometrical product specifications (GPS) - Geometrical tolerancing - Tolerances of
form, orientation, location and run-out
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60086-1:2026 and
the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
3.1
primary cell
primary battery
cell or battery that is not designed to be electrically recharged
3.2
round cell
round battery
cell or battery with circular cross section
3.3
button cell
button battery
small round cell or battery where the overall height is less than the diameter, containing
aqueous electrolyte
Note 1 to entry: For the specifications, refer to IEC 60086-2-1.
IEC 60086-2-2:2026 © IEC 2026
3.4
coin cell
coin battery
lithium button cell
lithium button battery
small round cell or battery where the overall height is less than the diameter, containing non-
aqueous electrolyte
Note 1 to entry: The nominal voltage of lithium batteries is typically greater than 2 V.
3.5
nominal voltage
U
n
suitable approximate value of the voltage used to designate or identify a cell, a battery or an
electrochemical system
[SOURCE: IEC 60050-482:2004, 482-03-31, modified – addition of U ]
n
3.6
open-circuit voltage
OCV
voltage across the terminals of a cell or battery when it is off discharge
3.7
end-point voltage
EV
specified voltage of a battery at which the battery discharge is terminated
[SOURCE: IEC 60050-482:2004, 482-03-30]
3.8
minimum average duration
MAD
acceptable minimum average time on discharge, which is met by testing a sample of batteries
according to specified methods, to be deemed compliant
Note 1 to entry: The discharge test is carried out according to the specified methods or standards and designed to
show conformity with the standard applicable to the battery types.
3.9
application test
simulation of the actual use of a battery in a specific application
3.10
service output
service life, or capacity, or energy output of a battery under specified conditions of discharge
3.11
service output test
test designed to measure the service output of a battery
Note 1 to entry: A service output test can be prescribed, for example, when
a) an application test is too complex to replicate;
b) the duration of an application test would make it impractical for routine testing purposes.
SIST EN IEC 600
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