SIST EN IEC 60086-2-1:2026

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 - 2-1. del: Fizikalne in električne specifikacije baterij z vodnim
elektrolitom (IEC 60086-2-1:2026)
Primary batteries - Part 2-1: Physical and electrical specifications of batteries with
aqueous electrolyte (IEC 60086-2-1:2026)
Primärbatterien - Teil 2-1: Physikalische und elektrische Eigenschaften von Batterien mit
wässrigem Elektrolyt (IEC 60086-2-1:2026)
Piles électriques - Partie 2-1: Spécifications physiques et électriques des piles à
électrolyte aqueux (IEC 60086-2-1:2026)
Ta slovenski standard je istoveten z: EN IEC 60086-2-1:2026
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 60086-2-1

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 2-1: Physical and electrical specifications
of batteries with aqueous electrolyte
(IEC 60086-2-1:2026)
Piles électriques - Partie 2-1: Spécifications physiques et Primärbatterien - Teil 2-1: Physikalische und elektrische
électriques des piles à électrolyte aqueux Eigenschaften von Batterien mit wässrigem Elektrolyt
(IEC 60086-2-1:2026) (IEC 60086-2-1:2026)
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 60086-2-1:2026 E

European foreword
The text of document 35/1591/FDIS, future edition 1 of IEC 60086-2-1, 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 60086-2-1:2026 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 60086-2-2 NOTE Approved as EN IEC 60086-2-2
IEC 60086-3 NOTE Approved as EN IEC 60086-3
IEC 60086-5 NOTE Approved as EN IEC 60086-5
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 60086-2-1 ®
Edition 1.0 2026-06
INTERNATIONAL
STANDARD
Primary batteries -
Part 2-1: Physical and electrical specifications of batteries with aqueous
electrolyte
ICS 29.220.10 ISBN 978-2-8327-1187-3
IEC 60086-2-1:2026-06(en)
IEC 60086-2-1:2026 © IEC 2026
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Battery dimensions – Symbols . 10
5 Dimensional stability . 10
6 Validity of testing . 10
7 Constitution of the battery specification tables . 11
8 Physical and electrical specifications . 13
8.1 Category 1 batteries . 13
8.1.1 General . 13
8.1.2 Category 1 – Specifications: LR1, R1, LR8D425 . 14
8.1.3 Category 1 – Specifications: LR03, TR03, R03 . 15
8.1.4 Category 1 – Specifications: LR6, TR6, R6P, R6S . 16
8.1.5 Category 1 – Specifications: LR14, R14P, R14S . 18
8.1.6 Category 1 – Specifications: LR20, R20P, R20S . 19
8.2 Category 2 battery – Void . 20
8.3 Category 3 battery – Specification: LR9 . 20
8.4 Category 4 batteries . 21
8.4.1 General . 21
8.4.2 Category 4 – Specifications: PR70, PR41, PR48, PR44, PR1154 . 21
8.4.3 Fit acceptance gauge for PR batteries . 23
8.4.4 Category 4 – Specifications: LR41, LR55, LR54, LR43, LR44 . 25
8.4.5 Category 4 – Specifications: SR62, SR63, SR65, SR64, SR60, SR67,
SR66, SR58, SR68, SR59, SR69, SR41, SR57, SR55, SR48, SR54,
SR42, SR43, SR44 . 26
8.5 Category 5 batteries . 28
8.5.1 Category 5 – Specifications: 4LR44, 4SR44. 28
8.5.2 Category 5 – Specification: 8LR932 . 29
8.5.3 Category 5 – Specifications: AR40, 5AR40, 6AR40, 5PR175/172,
6PR225/155 . 30
8.6 Category 6 batteries . 31
8.6.1 Category 6 – Specification: 4LR61 . 31
8.6.2 Category 6 – Void . 32
8.6.3 Category 6 – Void . 32
8.6.4 Category 6 – Specifications: 3R12P, 3R12S, 3LR12 . 32
8.6.5 Category 6 – Specifications: AS4, AS6S, AS6P, AS8, AS10, AS12,
PS8S, PS8P, PS10 . 33
8.6.6 Category 6 – Specification: 4R25Y . 34
8.6.7 Category 6 – Specifications: 4R25X, 4LR25X . 35
8.6.8 Category 6 – Specifications: 4R25-2, 4LR25-2 . 36
8.6.9 Category 6 – Specifications: 6AS4S, 6PS4S, 6PS4P . 37
8.6.10 Category 6 – Specifications: 6F22, 6LR61, 6LP3146 . 38
8.6.11 Category 6 – Configurations: Stud for 6F22, 6LR61 6LP3146 . 39
8.6.12 Category 6 – Specifications: 6AS6P, 6AS6S, 6PS6P, 6PS6S . 40

IEC 60086-2-1:2026 © IEC 2026
Annex A (informative) Tabulation of batteries by application . 41
Annex B (informative) Cross-reference index . 46
Annex C (informative) Index reference to subclause . 48
Bibliography . 49

Figure 1 – Dimensional drawing: Category 1 . 13
Figure 2 – Dimensional drawing: LR1, R1, LR8D425 . 14
Figure 3 – Dimensional drawing: LR03, TR03, R03 . 15
Figure 4 – Dimensional drawing: LR6, TR6, R6P, R6S . 16
Figure 5 – Dimensional drawing: LR14, R14P, R14S. 18
Figure 6 – Dimensional drawing: LR20, R20P, R20S. 19
Figure 7 – Dimensional drawing: LR9 . 20
Figure 8 – Dimensional drawing: Category 4 . 21
Figure 9 – Dimensional drawing: PR70, PR41, PR48, PR44, PR1154 . 21
Figure 10 – Gauge opening for P system batteries . 23
Figure 11 – Suggested gauge layout . 23
Figure 12 – Air hole placement diagram for P system batteries . 24
Figure 13 – Dimensional drawing: LR41, LR55, LR54, LR43, LR44 . 25
Figure 14 – Dimensional drawing: SR62, SR63, SR65, SR64, SR60, SR67, SR66,
SR58, SR68, SR59, SR69, SR41, SR57, SR55, SR48, SR54, SR42, SR43, SR44 . 26
Figure 15 – Dimensional drawing: 4LR44, 4SR44 . 28
Figure 16 – Dimensional drawing: 8LR932 . 29
Figure 17 – Dimensional drawing: AR40, 5AR40, 6AR40, 5PR175/172, 6PR225/155 . 30
Figure 18 – Dimensional drawing: 4LR61 . 31
Figure 19 – Dimensional drawing: 3R12P, 3R12S, 3LR12 . 32
Figure 20 – Dimensional drawing: AS4, AS6P/S, AS8, AS10, AS12, PS8P/S, PS10 . 33
Figure 21 – Dimensional drawing: 4R25Y . 34
Figure 22 – Dimensional drawing: 4R25X, 4LR25X . 35
Figure 23 – Dimensional drawing: 4R25-2, 4LR25‑2 . 36
Figure 24 – Dimensional drawing: 6AS4S, 6PS4S, 6PS4P . 37
Figure 25 – Dimensional drawing: 6F22, 6LR61, 6LP3146 . 38
Figure 26 – Dimensional drawing: Stud . 39
Figure 27 – Dimensional drawing: 6AS6P, 6AS6S, 6PS6P, 6PS6S . 40

Table 1 – Voltage and application test requirements for LR1, R1 and LR8D425 . 14
Table 2 – Voltage and application test requirements for LR03, TR03 and R03 . 15
Table 3 – Voltage and application test requirements for LR6, TR6, R6P and R6S . 17
Table 4 – Voltage and application test requirements for LR14, R14P and R14S . 18
Table 5 – Voltage and application test requirements for LR20, R20P and R20S . 19
Table 6 – Voltage and application test requirements for LR9 . 20
Table 7 – Voltage and application test requirements for PR70, PR41, PR48, PR44 and
PR1154 . 22
Table 8 – Gauge opening dimension . 23
IEC 60086-2-1:2026 © IEC 2026
Table 9 – Voltage and application test requirements for LR41, LR55, LR54, LR43 and
LR44 . 25
Table 10 – Voltage and application test requirements for SR62, SR63, SR65, SR64,
SR60, SR67, SR66, SR58, SR68, SR59, SR69, SR41, SR57, SR55, SR48, SR54,
SR42, SR43 and SR44 . 27
Table 11 – Voltage and application test requirements for 4LR44 and 4SR44 . 28
Table 12 – Voltage and application test requirements for 8LR932 . 29
Table 13 – Voltage and application test requirements for AR40, 5AR40, 6AR40,
5PR175/172 and 6PR225/155 . 30
Table 14 – Voltage and application test requirements for 4LR61 . 31
Table 15 – Voltage and application test requirements for 3R12P, 3R12S and 3LR12 . 32
Table 16 – Voltage and application test requirements for AS4, AS6P/S, AS8, AS10,
AS12, PS8P/S and PS10 . 33
Table 17 – Voltage and application test requirements for 4R25Y. 34
Table 18 – Voltage and application test requirements for 4R25X and 4LR25X . 35
Table 19 – Voltage and application test requirements for 4R25-2 and 4LR25‑2 . 36
Table 20 – Voltage and application test requirements for 6AS4S, 6PS4S and 6PS4P . 37
Table 21 – Voltage and application test requirements for 6F22, 6LR61 and 6LP3146. 38
Table 22 – Voltage and application test requirements for 6AS6P, 6AS6S, 6PS6P and
6PS6S . 40
Table A.1 – Automatic camera . 41
Table A.2 – Digital audio . 41
Table A.3 – Electric equipment . 41
Table A.4 – Electrical fence equipment, parking meters, light houses, beacons, railway
signalling and road signalling . 41
Table A.5 – Hearing aid . 42
Table A.6 – Hearing aid standard . 42
Table A.7 – High drain application . 42
Table A.8 – Implant high drain . 42
Table A.9 – Implant low drain . 42
Table A.10 – Implant low drain with wireless . 43
Table A.11 – Personal grooming . 43
Table A.12 – Portable lighting (LED) . 43
Table A.13 – Portable stereo . 43
Table A.14 – Radio . 44
Table A.15 – Radio / Clock . 44
Table A.16 – Radio/clock/remote control . 44
Table A.17 – Remote control. 44
Table A.18 – Road warning lamp . 44
Table A.19 – Smoke detector . 45
Table A.20 – Toy (motor) . 45
Table A.21 – Toy (non-motorized) . 45
Table A.22 – Wireless streaming. 45
Table B.1 – Category 1 batteries. 46
Table B.2 – Category 4 batteries. 47
IEC 60086-2-1:2026 © IEC 2026
Table B.3 – Category 5 batteries. 47
Table B.4 – Category 6 batteries. 47
Table C.1 – Index . 48

IEC 60086-2-1:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Primary batteries -
Part 2-1: Physical and electrical specifications
of batteries with aqueous electrolyte

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 60086-2-1 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) in Clause 3, terms were reordered according to their functions: basic terms, electrochemical
systems, electrical characteristics and specifications;
IEC 60086-2-1:2026 © IEC 2026
c) TR03 and TR6 were added in Category 1, Round batteries;
d) load of digital audio test for LR03, TR03 and R03 was changed from 50 mA to 75 mA and
MAD was modified;
e) personal grooming test of LR6 was added instead of high drain application test;
f) high drain application test was added for TR6;
g) radio /clock /remote control test was added for R6S;
h) CD, digital audio, wireless gaming and accessories test was removed for LR6, R6P and
R6S;
i) 4.5V of common designation was added for 3LR12, 3R12P and 3R12S;
j) Annex D for common designation of IEC 60086-2:2021 was moved to IEC 60086-1:2026,
as Annex H;
k) 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
35/1591/FDIS 35/1599/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 60086-2-1:2026 © 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 60086-2-1 is available in IEC 60086-5.
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 part of IEC 60086 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 60086-2-1:2026 © IEC 2026
1 Scope
This part of IEC 60086 is applicable to primary batteries which are based on standardised
electrochemical systems using aqueous electrolytes.
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
IEC 60086-2-1:2026 © 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.
Note 2 to entry: For the specifications, refer to IEC 60086-2-2.
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 may 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.
IEC 60086-2-1:2026 © IEC 2026
3.12
terminal
conductive parts of a battery providing connection to an external circuit
[SOURCE: IEC 60050-482:2004, 482-02-22, modified – “conductive part of a device, electric
circuit or electric network, provided” replaced by to “conductive parts of a battery providing” and
“device, electric circuit or electric network to one or more external conductor” replaced by “an
external circuit”]
4 Battery dimensions – Symbols
The symbols used to denote the various dimensions are as follows:
maximum overall height of the battery;
h
h minimum distance between the flats of the positive and negative contacts;
h minimum projection of the flat positive contact;
h maximum recess of the negative flat contact surface;
h minimum projection of the flat negative contact;
d maximum and minimum diameters of the battery;
d minimum diameter of the flat positive contact;
d maximum diameter of the positive contact within the specified projection height;
d minimum diameter of the flat negative contact;
d maximum diameter of the negative contact within the specified projection height;
d minimum outer diameter of the negative flat contact surface;
d maximum inner diameter of the negative flat contact surface;
øP concentricity of the positive contact.
5 Dimensional stability
Refer to IEC 60086-1 for dimensional stability.
6 Validity of testing
Portable primary batteries shall be subjected to the tests, as required in the IEC 60086 series.
Testing remains valid until a design change or requirement revision has been made. Retesting
is required when:
a) a battery specification changes by more than 0,1 g or 20 % mass, whichever is greater, for
the cathode, anode or electrolyte;
b) a battery specification changes that would lead to a failure of any of the tests;
c) there is an addition of new tests or requirements; or
d) there is a requirement change that would lead to a failure on any of the tests.
IEC 60086-2-1:2026 © IEC 2026
7 Constitution of the battery specification tables
– Batteries are categorized into several groups according to their shapes.
– In each category, batteries having the same shape but belonging to a different
electrochemical system are grouped together and shown in succession.
– Batteries are always listed in ascending order of nominal voltage and, within each nominal
voltage, in ascending order of volume.
– One common shape drawing of these batteries which fall in the same group is exhibited.
– Designation, nominal voltage, dimensions, discharge conditions, minimum average duration
and application for these batteries which fall into the same group are summarized in one
table.
– When a drawing represents only one type of battery, the dimensions of the relevant battery
may be directly shown on the drawing.
– Batteries are categorized into the following groups:
• Category 1: Round batteries according to Figure 1
R1, R03, R6P, R6S, R14P, R14S, R20P, R20S
LR8D425, LR1, LR03, LR6, LR14, LR20
TR03, TR6
• Category 2: Round battery
Void
• Category 3: Round battery according to Figure 7
LR9
• Category 4: Round batteries according to Figure 8
PR70, PR41, PR48, PR44, PR1154
LR41, LR55, LR54, LR43, LR44
SR62, SR63, SR65, SR64, SR60, SR67, SR66, SR58, SR68, SR59, SR69, SR41,
SR57, SR55, SR48, SR54, SR42, SR43, SR44
• Category 5: Other round batteries – Miscellaneous
4LR44
4SR44
8LR932
AR40
5AR40
6AR40
5PR175/172
6PR 225/155
IEC 60086-2-1:2026 © IEC 2026
• Category 6: Non-round batteries – Miscellaneous
3R12P, 3R12S, 3LR12
4LR61
AS4, AS6P, AS6S, AS8, AS10, AS12, PS8S, PS8P, PS10
4R25X, 4LR25X
4R25Y
4R25-2, 4LR25-2
6F22, 6LR61, 6LP3146
6AS4S, 6PS4S, 6PS4P
6AS6P, 6AS6S, 6PS6P, 6PS6S
The specification drawings show the shape of the relevant batteries. Dimensions for each
battery are shown in Table 8 and in Figure 1 to Figure 27.
NOTE 1 See Annex A, Annex B and Annex C for ease of locating battery sizes.
NOTE 2 For lithium batteries, see IEC 60086-2-2: Physical and electrical specifications of lithium batteries.
IEC 60086-2-1:2026 © IEC 2026
8 Physical and electrical specifications
8.1 Category 1 batteries
8.1.1 General
For the definition of the dimensions, see Clause 4.
The cylindrical surface is insulated from the contacts.
Terminals: flat/cap and base.
For general information, see IEC 60086-1.
Figure 1a): negative contact surface might not be flat
over the whole area.
Figure 1b): negative contact surface shall be essentially
flat over the whole surface area.
For batteries complying with Figure 1a) and Figure 1b),
flat negative contact is not necessarily recessed.
When the flat negative contact surface forms the lower
part of the battery, dimensions “h ” and “h ” are both
1 2
measured from the surface and dimension “h ” is zero.
Dimensions “øP” to be measured in accordance with
ISO 1101.
The profile over the dotted lines is not specified.
1 Positive contact
2 Optional pip (dimension "h " for batteries having the
pip is 0,4 mm max.)
3 Negative contact area
a)
Recesses are permitted in the negative flat contact
surface defined by dimensions d and d for batteries
6 7
having the shape shown in Figure 1a), provided that
batteries placed end to end in series make electrical
contact with each other and that the contact separation
is an integral multiple of the contact separation for one
battery. The following conditions shall be satisfied:
d > d
6 3
d > d
2 7
h > h
3 4
b)
Figure 1 – Dimensional drawing: Category 1
IEC 60086-2-1:2026 © IEC 2026
8.1.2 Category 1 – Specifications: LR1, R1, LR8D425
Figure 2 shows the dimensional drawing and Table 1 shows the voltage and application test
requirements for LR1, R1 and LR8D425.
Dimensions in millimetres
Dimensions LR1 R1 LR8D425
h
max. 30,2 30,2 42,5
h
min. 29,1 29,1 41,5
h
min. 0,5 0,5 0,7
h
max. 0,2 0,2 0,1
max. 12,0 12,0 8,3
d
min. 10,9 10,9 7,7
d
max. 4,0 4,0 3,8
a
d
min. 5,0 5,0
2,3
øP max. 0,5 0,5 0,1
a
This battery does not fulfill the requirement d > d due

6 3
to constructional constraints.

Figure 2 – Dimensional drawing: LR1, R1, LR8D425
Table 1 – Voltage and application test requirements for LR1, R1 and LR8D425
Electrochemical system letter L No letter L
IEC designation LR1 R1 LR8D425
Common designation N N AAAA
U (V)
1,5 1,5 1,5
n
OCV max. (V) 1,68 1,73 1,68
Delayed discharge performance after 12 months (% of MAD) 90 80 90
EV
a
Applications Load Daily Period
MAD (initial)
(V)
Portable lighting 5,1 Ω 5 min 0,9 94 min 30 min 90 min
Laser pointer 75 Ω 1 h 1,1 No test No test 22 h
Service output
75 Ω 1 h 0,9 38 h 18 h 27 h
test
a
Standard conditions (see IEC 60086-1:2026, Table 3, Initial discharge test).

IEC 60086-2-1:2026 © IEC 2026
8.1.3 Category 1 – Specifications: LR03, TR03, R03
Figure 3 shows the dimensional drawing and Table 2 shows the voltage and application test
requirements for LR03, TR03 and R03.
Dimensions in millimetres
Dimensions LR03, TR03 R03
h 44,5
max. 44,5
h 43,5
min. 43,5
h 0,8
min. 0,8
h 0,5
max. 0,5
max. 10,5 10,5
d
min. 9,8 9,8
d 3,8
max. 3,8
d
4,3
min. 4,3
øP max. 0,25 0,4
Figure 3 – Dimensional drawing: LR03, TR03, R03
Table 2 – Voltage and application test requirements for LR03, TR03 and R03
Electrochemical system letter L T No letter
IEC designation LR03 TR03 R03
Common designation AAA AAA AAA
U (V) 1,5
1,5 1,5
n
OCV max. (V) 1,68 1,75 1,73
Delayed discharge performance after 12 months (% of MAD) 90 90 80
a
Applications Load Daily Period EV (V) MAD (Initial)
4 min on,
Portable
5,1 Ω 56 min off for 0,9 130 min 130 min 50 min
b
lighting
8 h per day
Toy 5,1 Ω 1 h 0,8 120 min 120 min 30 min
1 h on, 11 hr
b
75 mA 0,9 10 h 10 h 2 h
Digital audio
off for 24 h
15 s per min
Remote control 24 Ω 1,0 14,5 h 14,5 h 4 h
8 h per day
Radio 75 Ω 4 h 0,9 No test No test 20 h
a
Standard conditions (see IEC 60086-1:2026, Table 3, Initial discharge test).
b
Test conditions shall be kept identical for battery designations LR03, TR03, R03, and FR10G445 in
IEC 60086-2-2 (see also I.6.1 and Table I.2 of IEC 60086-1:2026).

IEC 60086-2-1:2026 © IEC 2026
8.1.4 Category 1 – Specifications: LR6, TR6, R6P, R6S
Figure 4 shows the dimensional drawing and Table 3 shows the voltage and application test
requirements for LR6, TR6, R6P and R6S.
Dimensions in millimetres
Dimensions LR6, TR6 R6P, R6S
h 50,5
max. 50,5
h 49,5
min. 49,5
h 1,0
min. 1,0
h 0,5
max. 0,5
max. 14,5 14,5
d
a
13,7
min. 13,7
d 5,5
max. 5,5
d
7,0
min. 7,0
øP max. 0,25 0,5
a
R6 types without a metal jacket may have a d value of
13,5.
Figure 4 – Dimensional drawing: LR6, TR6, R6P, R6S
IEC 60086-2-1:2026 © IEC 2026
Table 3 – Voltage and application test requirements for LR6, TR6, R6P and R6S
Electrochemical system letter L T No letter No letter
R6P R6S
IEC designation LR6 TR6
High power Standard
Common designation AA AA AA AA
U (V)
1,5 1,5 1,5 1,5
n
OCV max. (V) 1,68 1,75 1,73 1,73
Delayed discharge performance after 12 months (% of
90 90 80 80
MAD)
a
Applications Load Daily Period EV (V)
MAD (initial)
1 500 mW
High drain
b
1,05 No test 40 pulses No test No test

application
650 mW
Personal 2 min on, 58 min
750 mA 1,1 25 min 25 min No test No test
grooming off for 8 h per day
Portable 4 min on, 56 min
3,9 Ω 0,9 230 min 230 min 60 min No test
lighting (LED) off for 8 h per day
c
Motor/toy 3,9 Ω 1 h 0,8 5 h 5 h 65 min 45 min
Toy, non-
250 mA 1 h 0,9 5 h 5 h No test No test
motorized
Radio/clock 43 Ω 4 h 0,9 No test No test No test 22 h
Radio /clock
1 h on, 7 h off for
/remote
50 mA 1,0 30 h 30 h 10 h 7,0 h
24 h per day
c
control
a
Standard conditions (see IEC 60086-1:2026, Table 3, Initial discharge test).
b
Repeat 10 times per hour: 1 500 mW for 2 s, then 650 mW for 28 s, then 0 mW for 55 min.
c
Test conditions shall be kept identical for battery designations LR6, TR6, R6P, R6S, and FR14505 in
IEC 60086-2-2 (see also I.6.1 and Table I.2 in IEC 60086-1:2026).

IEC 60086-2-1:2026 © IEC 2026
8.1.5 Category 1 – Specifications: LR14, R14P, R14S
Figure 5 shows the dimensional drawing and Table 4 shows the voltage and application test
requirements for LR14, R14P and R14S.
Dimensions in millimetres
Dimensions LR14 R14P R14S
h
max. 50,0 50,0 50,0
h
min. 48,6 48,6 48,6
h
min. 1,5 1,5 1,5
h
max. 0,9 0,9 0,9
max. 26,2 26,2 26,2
d
min. 24,9 24,9 24,9
d
max. 7,5 7,5 7,5
d
min. 13,0 13,0 13,0
øP max. 1,0 1,0 1,0
Figure 5 – Dimensional drawing: LR14, R14P, R14S
Table 4 – Voltage and application test requirements for LR14, R14P and R14S
Electrochemical system letter L No letter No letter
R14P R14S
IEC designation LR14
High power Standard
Common desi
...