Primary batteries - Part 3: Watch batteries (IEC 60086-3:2016)

IEC 60086-3:2011(E) specifies dimensions, designation, methods of tests and requirements for primary batteries for watches. In several cases, a menu of test methods is given. When presenting battery electrical characteristics and/or performance data, the manufacturer specifies which test method was used. The major technical changes with respect to the previous edition are the drawings, a review of the table of electrochemical systems and a harmonization of the marking clause with the other standards of the IEC 60086 series. Moreover, the table of the leakage levels was extended by adding drawings with better visualization. This publication is published as a double logo standard.

Primärbatterien - Teil 3: Uhrenbatterien

Piles électriques - Partie 3 : piles pour montres (IEC 60086-3:2016)

L'IEC 60086-3:2016 spécifie les dimensions, la désignation, les méthodes d'essai et les exigences applicables aux piles électriques pour montres. Dans certains cas, un choix de méthodes d'essai est proposé. Lorsque le fabricant présente les caractéristiques électriques et/ou les performances de la pile, il précise la méthode d'essai qui a été utilisée. Cette quatrième édition annule et remplace la troisième édition parue en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - Harmonisation des tailles des éléments et des essais de capacité avec l'IEC 60086-2; - Clarification des Articles 6: Echantillonnage et assurance de la qualité, 7: Méthodes d'essai, et 8: Examen visuel et conditions d'acceptation; - Harmonisation des conditions de température et d'humidité avec celles de l'IEC 60086-1. La présente norme est une norme double logo. Mots clés: piles électriques pour montres

Primarne baterije - 3. del: Baterije za zapestne ure (IEC 60086-3:2016)

Standard IEC 60086-3:2011(E) opredeljuje mere, označevanje, preskusne metode in zahteve za primarne baterije za zapestne ure. V številnih primerih je podan meni s preskusnimi metodami. Pri predstavitvi električnih lastnosti in/ali podatkov o delovanju proizvajalec navede, katera preskusna metoda je bila uporabljena. Glavne tehnične spremembe v primerjavi s prejšnjo izdajo so risbe, pregled razpredelnice z elektrokemičnimi sistemi in uskladitev točke o označevanju z drugimi standardi iz skupine IEC 60086. Poleg tega so bile razpredelnici z ravnmi uhajanja dodane nazornejše risbe. Ta publikacija je objavljena kot standard z dvojnim logotipom.

General Information

Status
Published
Publication Date
16-Oct-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-Oct-2016
Due Date
10-Dec-2016
Completion Date
17-Oct-2016

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SLOVENSKI STANDARD
SIST EN 60086-3:2016
01-december-2016
1DGRPHãþD
SIST EN 60086-3:2011
Primarne baterije - 3. del: Baterije za zapestne ure (IEC 60086-3:2016)
Primary batteries - Part 3: Watch batteries (IEC 60086-3:2016)
Piles électriques - Partie 3 : piles pour montres (IEC 60086-3:2016)
Ta slovenski standard je istoveten z: EN 60086-3:2016
ICS:
29.220.10 3ULPDUQLþOHQLLQEDWHULMH Primary cells and batteries
39.040.10 Zapestne, žepne ure Watches
SIST EN 60086-3:2016 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60086-3:2016
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SIST EN 60086-3:2016
EUROPEAN STANDARD EN 60086-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2016
ICS 29.220.10; 39.040.10 Supersedes EN 60086-3:2011
English Version
Primary batteries - Part 3: Watch batteries
(IEC 60086-3:2016)

Piles électriques - Partie 3 : Piles pour montres Primärbatterien - Teil 3: Uhrenbatterien

(IEC 60086-3:2016) (IEC 60086-3:2016)

This European Standard was approved by CENELEC on 2016-06-29. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 60086-3:2016 E
---------------------- Page: 3 ----------------------
SIST EN 60086-3:2016
EN 60086-3:2016
European foreword

The text of document 35/1359/FDIS, future edition 4 of IEC 60086-3, prepared by IEC/TC 35 "Primary

cells and batteries" and by ISO/TC 114 "Horology" was submitted to the IEC-CENELEC parallel vote

and approved by CENELEC as EN 60086-3:2016.
The following dates are fixed:
(dop) 2017-03-29
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2019-06-29
• latest date by which the national standards conflicting with
the document have to be withdrawn
This document supersedes EN 60086-3:2011.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such

patent rights.
Endorsement notice

The text of the International Standard IEC 60086-3:2016 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated :

IEC 60068-2-78:2001 NOTE Harmonized as EN 60068-2-78:2001 (not modified).
---------------------- Page: 4 ----------------------
SIST EN 60086-3:2016
EN 60086-3:2016
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60086-1 2015 Primary batteries - EN 60086-1 2015
Part 1: General
IEC 60086-2 2015 Primary batteries - EN 60086-2 2016
Part 2: Physical and electrical
specifications
IEC 60086-4 2014 Primary batteries - EN 60086-4 2015
Part 4: Safety of lithium batteries
IEC 60086-5 2016 Primary batteries - EN 60086-5
Part 5: Safety of batteries with aqueous
electrolyte
1) To be published.
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SIST EN 60086-3:2016
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SIST EN 60086-3:2016
IEC 60086-3
Edition 4.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Primary batteries –
Part 3: Watch batteries
Piles électriques –
Partie 3: Piles pour montres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.10; 39.040.10 ISBN 978-2-8322-3402-0

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

---------------------- Page: 7 ----------------------
SIST EN 60086-3:2016
– 2 – IEC 60086-3:2016 © IEC 2016
CONTENTS

FOREWORD ......................................................................................................................... 4

INTRODUCTION ................................................................................................................... 6

1 Scope ............................................................................................................................ 7

2 Normative references..................................................................................................... 7

3 Terms and definitions .................................................................................................... 7

4 Physical requirements.................................................................................................... 8

4.1 Battery dimensions, symbols and size codes ......................................................... 8

4.2 Terminals ............................................................................................................ 10

4.3 Projection of the negative terminal (h ) ................................................................ 10

4.4 Shape of negative terminal .................................................................................. 10

4.5 Mechanical resistance to pressure ....................................................................... 11

4.6 Deformation ........................................................................................................ 11

4.7 Leakage .............................................................................................................. 11

4.8 Marking ............................................................................................................... 12

4.8.1 General ....................................................................................................... 12

4.8.2 Disposal ...................................................................................................... 12

5 Electrical requirements ................................................................................................ 12

5.1 Electrochemical system, nominal voltage, end-point voltage and open-circuit

voltage ................................................................................................................ 12

5.2 Closed circuit voltage U (CCV), internal resistance and impedance ................... 13

5.3 Capacity ............................................................................................................. 13

5.4 Capacity retention ............................................................................................... 13

6 Sampling and quality assurance ................................................................................... 13

7 Test methods ............................................................................................................... 13

7.1 Shape and dimensions ........................................................................................ 13

7.1.1 Shape requirement ....................................................................................... 13

7.2 Electrical characteristics ...................................................................................... 14

7.2.1 Environmental conditions ............................................................................. 14

7.2.2 Equivalent circuit – effective internal resistance – DC method ....................... 14

7.2.3 Equipment ................................................................................................... 15

7.2.4 Measurement of open-circuit voltage U (OCV) and closed circuit

voltage U (CCV) ....................................................................................... 15

7.2.5 Calculation of the internal resistance R ........................................................ 16

7.2.6 Measurement of the capacity ........................................................................ 16

7.2.7 Calculation of the internal resistance R during discharge in case of

method A (optional) ...................................................................................... 18

7.3 Test methods for determining the resistance to leakage ....................................... 20

7.3.1 Preconditioning and initial visual examination ............................................... 20

7.3.2 High temperature and humidity test .............................................................. 20

7.3.3 Test by temperature cycles .......................................................................... 20

8 Visual examination and acceptance conditions ............................................................. 21

8.1 Preconditioning ................................................................................................... 21

8.2 Magnification ...................................................................................................... 21

8.3 Lighting ............................................................................................................... 21

8.4 Leakage levels and classification ......................................................................... 21

8.5 Acceptance conditions......................................................................................... 23

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SIST EN 60086-3:2016
IEC 60086-3:2016 © IEC 2016 – 3 –

Annex A (normative) Designation ....................................................................................... 24

Bibliography ....................................................................................................................... 25

Figure 1 – Dimensional drawing ............................................................................................ 8

Figure 2 – Shape of negative terminal ................................................................................. 11

Figure 3 – Shape requirement ............................................................................................. 14

Figure 4 – Schematic voltage transient ................................................................................ 14

Figure 5 – Curve: U = f(t) .................................................................................................... 15

Figure 6 – Circuitry principle ............................................................................................... 16

Figure 7 – Circuitry principle for method A ........................................................................... 17

Figure 8 – Circuitry principle for method B ........................................................................... 18

Figure 9 – Test by temperature cycles ................................................................................. 20

Table 1 – Dimensions and size codes .................................................................................... 9

Table 2 – Dimensions and size codes .................................................................................. 10

Table 3 – Minimum values of l ........................................................................................... 11

Table 4 – Applied force F by battery dimensions .................................................................. 11

Table 5 – Standardised electrochemical systems ................................................................. 12

Table 6 – Test method for U (CCV) measurement ............................................................ 16

Table 7 – Test method A for U (CCV) measurement ......................................................... 17

Table 8 – Discharge resistance (values) .............................................................................. 19

Table 9 – Storage conditions for the recommended test ....................................................... 20

Table 10 – Storage conditions for optional test .................................................................... 20

Table 11 – Leakage levels and classification (1 of 2) ........................................................... 22

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SIST EN 60086-3:2016
– 4 – IEC 60086-3:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PRIMARY BATTERIES –
Part 3: Watch 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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60086-3 has been prepared by IEC technical committee 35:

Primary cells and batteries, and ISO technical committee 114: Horology.

This fourth edition cancels and replaces the third edition published in 2011. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) A harmonization of the cell sizes and service output tests with IEC 60086-2;

b) Clarifications of Clauses 6: Sampling and Quality Assurance, 7: Test methods, and 8:

Visual examination and acceptance condition;
c) Harmonization of temperature and humidity conditions with IEC 60086-1.
---------------------- Page: 10 ----------------------
SIST EN 60086-3:2016
IEC 60086-3:2016 © IEC 2016 – 5 –
This publication is published as a double logo standard.
The text of this standard is based on the following documents:
FDIS Report on voting
35/1359/FDIS 35/1362/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 60086 series, published under the general title Primary batteries,

can be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN 60086-3:2016
– 6 – IEC 60086-3:2016 © IEC 2016
INTRODUCTION

This part of IEC 60086 provides specific requirements and information for primary watch

batteries. This part of IEC 60086 was prepared through joint work between the IEC and ISO to

benefit primary battery users, watch designers and battery manufacturers by ensuring the

best compatibility between batteries and watches.

This part of IEC 60086 will remain under continual scrutiny to ensure that the publication is

kept up to date with the advances in both battery and watch technologies.
NOTE Safety information is available in IEC 60086-4 and IEC 60086-5.
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SIST EN 60086-3:2016
IEC 60086-3:2016 © IEC 2016 – 7 –
PRIMARY BATTERIES –
Part 3: Watch batteries
1 Scope

This part of IEC 60086 specifies dimensions, designation, methods of tests and requirements

for primary batteries for watches. In several cases, a menu of test methods is given. When

presenting battery electrical characteristics and/or performance data, the manufacturer

specifies which test method was used.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and

are indispensable for its application. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60086-1:2015, Primary batteries – Part 1: General

IEC 60086-2:2015, Primary batteries – Part 2: Physical and electrical specifications

IEC 60086-4:2014, Primary batteries – Part 4: Safety of lithium batteries

IEC 60086-5:- , Primary batteries – Part 5: Safety of batteries with aqueous electrolyte

3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60086-1 as well as

the following terms and definitions apply.
3.1
capacitive reactance

part of the internal resistance, that leads to a voltage drop during the first seconds under load

3.2
capacity

electric charge (quantity of electricity) which a cell or battery can deliver under specified

discharge conditions

Note 1 to entry: The SI unit for electric charge is the coulomb (1 C = 1 As) but, in practice, capacity is usually

expressed in ampere hours (Ah).
3.3
fresh battery
undischarged battery 60 days maximum after date of manufacture
___________
To be published.
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SIST EN 60086-3:2016
– 8 – IEC 60086-3:2016 © IEC 2016
3.4
ohmic drop

part of the internal resistance that leads to a voltage drop immediately after switching the load

4 Physical requirements
4.1 Battery dimensions, symbols and size codes

Dimensions and tolerances of batteries for watches shall be in accordance with Figure 1,

Table 1 and Table 2. The dimensions of the batteries shall be tested in accordance with 7.1.

The symbols used to denote the various dimensions in Figure 1 are in accordance with

IEC 60086-2:2015, Clause 4.
Dimensions in millimetres
0,05
0,1
0,05
<10
≥10 0,1
IEC
Key
h maximum overall height of the battery
h minimum distance between the flats of the positive and negative contacts
h minimum projection of the flat negative contact
d maximum and minimum diameter of the battery
d minimum diameter of the flat positive contact
d minimum diameter of the flat negative contact
NOTE This numbering follows the harmonization in the IEC 60086 series.
Figure 1 – Dimensional drawing
h /h
1 2
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IEC 60086-3:2016 © IEC 2016 – 9 –
SIST EN 60086-3:2016
Table 1 – Dimensions and size codes
Dimensions in millimetres
Diameter Height h /h
1 2
Code
10 12 14 16 20 21 25 26 27 30 31 32 36 42 54
Tole- 4
Code
Tolerance
rance
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

–0,10 –0,15 –0,15 –0,18 –0,20 –0,20 –0,20 –0,20 –0,20 –0,25 –0,25 –0,25 –0,25 –0,25 –0,25

4 4,8 1,65 2,15
–0,15
5 5,8 2,6 1,05 1,25 1,45 1,65 2,15 2,70
–0,15
6 6,8 3,0 1,05 1,25 1,45 1,65 2,15 2,60
–0,15
7 7,9 3,5 1,05 1,25 1,45 1,65 2,10 2,60 3,10 3,60 5,40
–0,15
9 9,5 4,5 1,05 1,25 1,45 1,65 2,05 2,10 2,70 3,60
–0,15
10 10,0 3,0 2,50
–0,30
11 11,6 6,0 1,05 1,25 1,45 1,65 2,05 2,10 2,60 3,05 3,60 4,20 5,40
–0,20
12 12,5 4,0 1,20 1,60 2,00 2,50
–0,25

NOTE Open boxes in the above matrix are not necessarily available for standardisation due to the concept of overlapping tolerances.

See Annex A.
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SIST EN 60086-3:2016
– 10 – IEC 60086-3:2016 © IEC 2016
Table 2 – Dimensions and size codes
Dimensions in millimetres
Diameter Height h /h
1 2
Code
12 16 20 25 30 32
Code d Tolerance
1 Tolerances
0 0 0 0 0 0
–0,20 –0,20 –0,25 –0,30 –0,30 –0,30
16 16 5,00 1,20 1,60 2,00 2,50 3,20
–0,25
20 20 8,00 1,20 1,60 2,00 2,50 3,20
–0,25
23 23 8,00 1,20 1,60 2,00 2,50 3,00
–0,30
24 24,5 8,00 1,20 1,60 3,00
–0,30

NOTE Open boxes in the above matrix are not necessarily available for standardisation due to the concept of

overlapping tolerances.
See Annex A.
4.2 Terminals

Negative contact (–): the negative contact (dimension d ) shall be in accordance with

Tables 1 and 2. This is not applied to those batteries with a two-step
negative contact.

Positive contact (+): the cylindrical surface is connected to the positive terminal. Positive

contact should be made to the side of the battery but may be made to
the base.
4.3 Projection of the negative terminal (h )
The dimension h shall be as follows:
h ≥ 0,02 for h /h ≤ 1,65
5 1 2
h ≥ 0,06 for 1,65 < h /h < 2,5
5 1 2
h ≥ 0,08 for h /h ≥ 2,5
5 1 2
The negative contact should be the highest point of the battery.
4.4 Shape of negative terminal
The space requirements shall be contained within an angle of 45° (see Figure 2).
The minimum values of l , for different heights of h /h , are given in Table 3.
1 1 2
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SIST EN 60086-3:2016
IEC 60086-3:2016 © IEC 2016 – 11 –
45°
IEC
Figure 2 – Shape of negative terminal
Table 3 – Minimum values of l
Dimensions in millimetres
h /h l
1 2 1 min
1 < h /h ≤ 1,90 0,20
1 2
1,90 < h /h ≤ 3,10 0,35
1 2
0,70
3,60 ≤ h /h ≤ 4,20
1 2
0,90
5,40 ≤ h /h
1 2
4.5 Mechanical resistance to pressure

A force F (N), as specified in Table 4, applied for 10 s through a steel ball of 1 mm diameter,

at the centre of each contact area, shall not cause any deformation prejudicial to the proper

functioning of the battery, i.e. after this test, the battery shall pass the tests specified in

Clause 7.
Table 4 – Applied force F by battery dimensions
Battery dimensions Force
d h /h F
1 1 2
mm mm N
<3,0
<7,9
≥3,0 10
<3,0 10
≥7,9
≥3,0
4.6 Deformation

The dimensions of batteries shall conform with the relevant specified dimensions at all times

including discharge to the defined end-point voltage.

NOTE 1 A battery height increase up to 0,25 mm can occur, if discharged below this voltage.

NOTE 2 A battery height decrease can occur in B and C systems as discharge continues.

4.7 Leakage

Undischarged batteries and, if required, batteries tested according to 7.2.6 shall be examined

as stated in 7.3. The acceptable number of defects shall be agreed between the manufacturer

and the purchaser.
h /h
1 2
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SIST EN 60086-3:2016
– 12 – IEC 60086-3:2016 © IEC 2016
4.8 Marking
4.8.1 General

The designation and the polarity shall be marked on the battery. Battery marking should not

impede electrical contact. All other markings may be given on the packing instead of on the

battery:
a) designation according to normative Annex A, or common;

b) expiration of a recommended usage period or year and month or week of manufacture;

The year and month or week of manufacture may be in code. The code is composed by

the last digit of the year and by a number indicating the month. October, November and

December should be represented by the letters O, Y and Z respectively.
EXAMPLE
41: January 2014;
4Y: November 2014.
c) polarity of the positive (+) terminal;
d) nominal voltage;
e) name or trade mark of the supplier;
f) cautionary advice;

g) caution for ingestion of batteries shall be given. Refer to IEC 60086-4:2014 (7.2 a) and 9.2)

and IEC 60086-5:- (7.1 l) and 9.2) for details.

NOTE Examples of the common designations can be found in Annex D of IEC 60086-2:2015.

4.8.2 Disposal

Marking of batteries with respect to the method of disposal shall be in accordance with local

legal requirements.
5 Electrical requirements
5.1 Electrochemical system, nominal voltage, end-point voltage and open-circuit
voltage

The requirements concerning the electrochemical system, the nominal voltage, the end-point

voltage and the open-circuit voltage are given in Table 5.
Table 5 – Standardised electrochemical systems
Letter Negative Electrolyte Positive electrode Nominal End- Open-circuit
electrode voltage point voltage
voltage
(V ) (EV) (U or OCV)
n OC
V V V
Max. Min.
B Lithium (Li) Organic electrolyte Carbon monofluoride (CF) 3,0 2,0 3,70 3,00
C Lithium (Li) Organic electrolyte Manganese dioxide (MnO ) 3,0 2,0 3,70 3,00
L Zinc (Zn) Alkali metal hydroxide Manganese dioxide (MnO ) 1,5 1,0 1,68 1,50
S Zinc (Zn) Alkali metal hydroxide Silver oxide (Ag O) 1,55 1,2 1,63 1,57
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SIST EN 60086-3:2016
IEC 60086-3:2016 © IEC 2016 – 13 –
5.2 Closed circuit voltage U (CCV), internal resistance and impedance

Closed circuit voltage and internal resistance shall be measured according to 7.2.

AC impedance should be measured with an LCR meter.
Limit values shall be agreed between the manufacturer and the purchaser.
5.3 Capacity

The capacity shall be agreed between the manufacturer and the purchaser on the basis of a

continuous discharge test lasting approximately 30 days, according to 7.2.6.
5.4 Capacity retention

The capacity retention is the ratio between the capacities under the given discharge

conditions measured on fresh batteries and a sample of the same lot stored during 365 days

at (20 ± 2) °C and a relative
...

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