EN IEC 60086-2-2:2026

• 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
• ICS: 29.220.10 - Primary cells and batteries
• 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
• 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: SIST EN IEC 60086-2-2:2026 - Primary batteries - Part 2-2: Physical and electrical specifications of lithium batteries (IEC 60086-2-2:2026)

• Replaces: EN IEC 60086-2:2021/AC:2026-04 - Primary batteries - Part 2: Physical and electrical specifications
• Effective Date: 23-Jun-2026
• Replaces: EN IEC 60086-2:2021 - Primary batteries - Part 2: Physical and electrical specifications
• 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
• Refers: EN ISO 1101:2017 - Geometrical product specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, location and run-out (ISO 1101:2017)
• Effective Date: 01-Sep-2026
• Refers: FprEN IEC 60086-1:2025 - Primary batteries - Part 1: General
• Effective Date: 01-Sep-2026
• Referred By: EN 50272-4:2007 - Safety requirements for secondary batteries and battery installations - Part 4: Batteries for use in portable appliances
• Effective Date: 22-Sep-2026
• Referred By: EN 60086-4:2015 - Primary batteries - Part 4: Safety of lithium batteries
• Effective Date: 22-Sep-2026
• Referred By: EN 61951-1:2017 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 1: Nickel-cadmium
• Effective Date: 22-Sep-2026
• Referred By: EN 61951-2:2017 - Secondary cells and batteries containing alkaline or other non acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 2: Nickel-metal hydride
• Effective Date: 22-Sep-2026
• Referred By: EN IEC 60086-4:2019 - Primary batteries - Part 4: Safety of lithium batteries
• 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
• Referred By: EN IEC 60086-3:2021 - Primary batteries - Part 3: Watch batteries
• Effective Date: 22-Sep-2026
• Referred By: EN IEC 61563:2021 - Radiation protection instrumentation - Equipment for measuring the activity concentration of gamma-emitting radionuclides in foodstuffs
• 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
• Referred By: EN IEC 60086-4:2025 - Primary batteries - Part 4: Safety of lithium batteries
• Effective Date: 22-Sep-2026

EN IEC 60086-2-2:2026 is a European Standard for primary batteries based on standardized lithium (non-aqueous) electrochemical systems. It specifies the physical dimensions, discharge test conditions, and discharge performance requirements for named lithium battery types, so manufacturers, test labs, and device designers can identify, compare, and verify cells for specific applications.

What does EN IEC 60086-2-2:2026 specify?

EN IEC 60086-2-2:2026 covers standardized lithium primary batteries and organizes them by shape and battery category. It gives the dimensional drawings and the electrical test requirements needed to describe each battery type in a consistent way.

The document is structured in clauses 1 to 8, followed by three informative annexes.

Annex	What it covers
Annex A	Batteries listed by application, such as digital audio, photo, lighting, electronic key, and toy use
Annex B	Cross-reference index for batteries with the same physical dimensions but different electrochemical systems
Annex C	Index reference to the relevant subclause for each battery type

Clause 1 states the scope, Clause 2 lists the normative references, Clause 3 defines the terms used, Clause 4 gives the symbols for battery dimensions, Clause 5 points to dimensional stability in IEC 60086-1, Clause 6 explains when testing remains valid, Clause 7 explains how the battery tables are arranged, and Clause 8 gives the physical and electrical specifications for each battery type.

What are the key requirements of EN IEC 60086-2-2:2026?

EN IEC 60086-2-2:2026 requires each covered battery type to meet a defined shape, size, terminal arrangement, open-circuit voltage limit, and discharge performance profile. In practice, this means the standard is used to check whether a battery can fit the intended device and deliver the expected service output under the stated test conditions.

Physical dimensions and identification

Clause 4 defines the symbols used for battery dimensions, including overall height, diameter, contact dimensions, recess, projection, and concentricity. Clause 7 then groups batteries by category and lists them in order of nominal voltage and volume.

This matters because the same external size can be used by different battery chemistries. A buyer or designer can use the category drawings and tables to compare compatible cells without confusing shape with performance.

The main categories in Clause 8 are:

• Category 1 - FR10G445 and FR14505
• Category 2 - CR14250, CR15H270, CR17345, CR17450, BR17335
• Category 3 - CR11108
• Category 4 - CR1025, CR1216, CR1220, CR1225, CR1616, CR2012, CR1620, CR2016, CR2412, CR1632, CR2025, CR2320, CR2032, CR2330, CR2430, CR2354, CR3032, CR2450, CR2477, BR1225, BR2016, BR2320, BR2325, BR3032
• Category 5 - 2CR13252
• Category 6 - CR-P2 and 2CR5

Electrical performance and application tests

Clause 8 ties each battery type to specific discharge tests. For example, the tables state the load, daily or repeating duty cycle, end-point voltage, and minimum average duration (MAD) or service output requirement.

This is the practical heart of the document. It tells test engineers what to measure and tells users what performance level the battery must reach in the intended application.

Examples of the covered application tests include:

• digital audio
• digital still camera
• electronic key
• high intensity lighting
• portable lighting
• radio/clock/remote control
• toy (motor)
• photo
• service output tests at stated resistive loads

Battery-specific limits

Some battery types have battery-specific limits and test profiles. For FR10G445 and FR14505, Clause 8 sets a maximum open-circuit voltage of 1.90 V and a delayed discharge performance target after 12 months of 95% of MAD. For CR types in Categories 2, 3, 4, 5 and 6, the tables set an open-circuit voltage maximum of 3.7 V or 7.4 V, depending on the battery group, and a delayed discharge performance target of 98% of MAD.

That distinction matters because the same nominal size does not imply the same chemistry or electrical behavior. The tables are what allow a test lab or purchasing team to match a device to the right battery designation.

Dimensional form and terminal arrangement

The drawings in Clause 8 also define the physical form of each category. For example, some categories use flat/cap and base terminals, some require flat contacts, and some require the cylindrical surface to be insulated from the contacts or connected to the positive terminal.

This is important in practice because the device contacts, insulating surfaces, and battery compartment must match the specified construction, not just the nominal size.

Testing validity and retesting triggers

Clause 6 says that portable primary batteries are tested according to the IEC 60086 series and that testing remains valid until the design or the requirement changes. Retesting is needed when battery mass changes beyond the stated threshold, when the change could affect a test result, or when new tests or new requirements are introduced.

For manufacturers, this is the rule that links product changes to verification work. It helps determine when an existing qualification can still be used and when a new test program is needed.

What terms does EN IEC 60086-2-2:2026 define?

EN IEC 60086-2-2:2026 defines the core terms needed to read the tables and test requirements correctly.

• Primary cell / primary battery - a cell or battery that is not designed to be electrically recharged.
• Round cell / round battery - a cell or battery with a circular cross section.
• Coin cell / coin battery / lithium button cell / lithium button battery - a small round cell or battery with overall height less than diameter and non-aqueous electrolyte.
• Nominal voltage (U) - the approximate voltage used to designate or identify a cell, battery, or electrochemical system.
• Open-circuit voltage (OCV) - the terminal voltage when the cell or battery is not under discharge.
• End-point voltage (EV) - the voltage at which discharge is terminated.
• Minimum average duration (MAD) - the acceptable minimum average time on discharge that a sample must achieve to show compliance.
• Service output test - a test designed to measure service life, capacity, or energy output under specified conditions.

Who uses EN IEC 60086-2-2:2026?

EN IEC 60086-2-2:2026 is intended for primary battery users, device designers, and battery manufacturers. In practice, it is also used by test laboratories, quality teams, and procurement staff who need to compare batteries with the same shape but different electrochemical systems.

It is especially relevant for products that use standardized lithium primary cells in applications such as digital still cameras, lighting, toys, electronic keys, and radio or clock devices. These users rely on the standard to select a battery that fits, meets the electrical limit, and passes the relevant application test.

What changed in EN IEC 60086-2-2:2026 from the previous edition?

EN IEC 60086-2-2:2026 is a technical revision and supersedes EN IEC 60086-2:2021 and its amendments and corrigenda. It also cancels and replaces the former IEC 60086-2 edition from 2021.

The stated changes are:

• the former combined Part 2 was split into IEC 60086-2-1 for aqueous electrolyte batteries and IEC 60086-2-2 for lithium-based batteries
• the maximum open-circuit voltage for FR10G445 and FR14505 changed from 1.83 V to 1.90 V
• the digital audio test load for FR10G445 changed from 50 mA to 75 mA and MAD was modified
• a portable lighting test was added for FR10G445
• motor/toy and radio/clock/remote control tests were added for FR14505
• Clause 3 terms were reordered by function
• the former Annex D moved to IEC 60086-1:2026 as Annex H
• the former Annex E was removed and merged into Annex J of IEC 60086-1:2026

Which standards are used with EN IEC 60086-2-2:2026?

EN IEC 60086-2-2:2026 uses IEC 60086-1:2026 and ISO 1101 as normative references. IEC 60086-1 provides the general requirements for primary batteries, including the references for dimensional stability and the standard initial discharge test conditions used in the tables.

ISO 1101 provides the geometrical tolerancing method used for the concentricity requirement of the positive contact. That matters because the dimension is not only a size value - it is also a geometric control that affects fit and electrical contact.

The document also points readers to related battery standards in the IEC 60086 family and to safety standards:

• IEC 60086-2-1 - physical and electrical specifications for batteries with aqueous electrolyte
• IEC 60086-3 - watch batteries
• IEC 60086-4 - safety of lithium batteries
• IEC 62281 - safety of primary and secondary lithium cells and batteries during transport

What does the EN IEC 60086-2-2:2026 document contain?

EN IEC 60086-2-2:2026 contains dimensional drawings for the battery categories and detailed tables of voltage and application test requirements. It also includes the application-based listings in Annex A, the cross-reference index in Annex B, and the subclause index in Annex C.

The body of the document gives the shape definitions, contact arrangements, OCV limits, delayed discharge performance targets, and the relevant discharge test setups. That makes it a working reference for design checks, laboratory testing, and product qualification rather than a general overview of lithium batteries.

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
...