EN IEC 62813:2025

SLOVENSKI STANDARD
01-maj-2025
Litij-ionski kondenzatorji za električno in elektronsko opremo - Metode za
preskušanje električnih karakteristik (IEC 62813:2025)
Lithium ion capacitors for use in electric and electronic equipment - Test methods for
electrical characteristics (IEC 62813:2025)
Lithium-Ionen-Kondensatoren zur Verwendung in elektrischen und elektronischen
Geräten - Prüfverfahren für die elektrischen Kennwerte (IEC 62813:2025)
Condensateurs au lithium-ion destinés à être utilisés dans les équipements électriques
et électroniques - Méthodes d'essai relatives aux caractéristiques électriques (IEC
62813:2025)
Ta slovenski standard je istoveten z: EN IEC 62813:2025
ICS:
31.060.99 Drugi kondenzatorji Other capacitors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62813

NORME EUROPÉENNE
EUROPÄISCHE NORM February 2025
ICS 31.060.99 Supersedes EN 62813:2015
English Version
Lithium ion capacitors for use in electric and electronic
equipment - Test methods for electrical characteristics
(IEC 62813:2025)
Condensateurs au lithium-ion destinés à être utilisés dans Lithium-Ionen-Kondensatoren zur Verwendung in
les équipements électriques et électroniques - Méthodes elektrischen und elektronischen Geräten - Prüfverfahren für
d'essai relatives aux caractéristiques électriques die elektrischen Kennwerte
(IEC 62813:2025) (IEC 62813:2025)
This European Standard was approved by CENELEC on 2025-02-21. 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.
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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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62813:2025 E
European foreword
The text of document 40/3178/FDIS, future edition 2 of IEC 62813, prepared by TC 40 "Capacitors
and resistors for electronic equipment" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 62813:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-02-28
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-02-29
document have to be withdrawn
This document supersedes EN 62813:2015 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 62813:2025 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 61881-3:2012 NOTE Approved as EN 61881-3:2012 (not modified)
IEC 62391-1:2022 NOTE Approved as EN IEC 62391-1:2022 (not modified)
IEC 62576:2018 NOTE Approved as EN IEC 62576:2018 (not modified)
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 60068-1 2013 Environmental testing - Part 1: General EN 60068-1 2014
and guidance
IEC 62813 ®
Edition 2.0 2025-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Lithium-ion capacitors for use in electric and electronic equipment –

Test methods for electrical characteristics

Condensateurs au lithium-ion destinés à être utilisés dans les équipements

électriques et électroniques – Méthodes d'essai relatives aux caractéristiques

électriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.99  ISBN 978-2-8327-0137-9

– 2 – IEC 62813:2025 © IEC 2025
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test methods . 8
4.1 Test requirements . 8
4.1.1 Standard atmospheric conditions for tests . 8
4.1.2 Standard atmospheric conditions for measurements . 8
4.1.3 Pre-conditioning . 8
4.2 Measurement . 8
4.2.1 Capacitance, discharge accumulated electric energy, and internal
resistance . 8
4.2.2 Measurement for voltage maintenance rate . 11
4.3 Calculation . 13
4.3.1 Calculation of capacitance and discharge accumulated electric energy . 13
4.3.2 Calculation of internal resistance . 14
4.3.3 Calculation of voltage maintenance rate . 15
Annex A (informative) Endurance test (continuous application of rated voltage at high
temperature) . 16
A.1 General . 16
A.2 Test procedure . 16
A.2.1 Test conditions . 16
A.2.2 Test procedure . 16
A.2.3 Requirements . 16
Annex B (informative) Calculation of the measuring currents based on the propagated
error . 18
B.1 General . 18
B.2 Measurement propagated error and measuring currents . 18
Annex C (informative) Procedures for defining the measuring current of LIC with
uncertain nominal internal resistance . 21
C.1 General . 21
C.2 Defining procedures of measuring current for LIC . 21
Bibliography . 22

Figure 1 – Basic circuit for measuring capacitance, discharge accumulated electric
energy, and internal resistance . 9
Figure 2 – Voltage profile for measuring capacitance, discharge accumulated electric
energy, and internal resistance . 11
Figure 3 – Basic circuit for measuring the voltage maintenance rate . 12
Figure 4 – Voltage profile for measuring voltage maintenance rate . 13
Figure C.1 – Flowchart of current setting procedures . 21

IEC 62813:2025 © IEC 2025 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LITHIUM-ION CAPACITORS FOR USE
IN ELECTRIC AND ELECTRONIC EQUIPMENT –
TEST METHODS FOR ELECTRICAL CHARACTERISTICS

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,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
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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 62813 has been prepared by IEC technical committee 40: Capacitors and resistors for
electronic equipment. It is an International Standard.
This second edition cancels and replaces the first edition published in 2015. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The document has been restructured to comply with the ISO/IEC Directives, Part 2.

– 4 – IEC 62813:2025 © IEC 2025
The text of this International Standard is based on the following documents:
Draft Report on voting
40/3178/FDIS 40/3195/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.
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 62813:2025 © IEC 2025 – 5 –
LITHIUM-ION CAPACITORS FOR USE
IN ELECTRIC AND ELECTRONIC EQUIPMENT –
TEST METHODS FOR ELECTRICAL CHARACTERISTICS

1 Scope
This International Standard specifies the electrical characteristics (capacitance, internal
resistance, discharge accumulated electric energy, and voltage maintenance rate) test methods
of lithium-ion capacitors (LIC) for use in electric and electronic equipment.
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 60068-1:2013, Environmental testing – Part 1: General and guidance
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
upper category temperature
highest ambient temperature including internal heating in which a LIC is designed to operate
continuously
[SOURCE: IEC 61881-3:2012, 3.17, modified – The note to entry has been deleted.]
3.2
rated voltage
U
R
maximum direct current (DC) voltage that may be applied continuously for a certain time under
the upper category temperature (3.1) to a LIC so that it can exhibit specified demand
characteristics
Note 1 to entry: This voltage is the setting voltage in LIC design.
Note 2 to entry: The endurance test using the rated voltage is described in Annex A.
[SOURCE: IEC 62576:2018, 3.20, modified – The word "capacitor" has been replaced by "LIC".]

– 6 – IEC 62813:2025 © IEC 2025
3.3
rated lower limit voltage
U
L
minimum DC voltage such that a LIC can exhibit specified demand characteristics
Note 1 to entry: The rated lower limit voltage is designated by manufacturer.
3.4
charging current
current required to charge a LIC
3.5
discharging current
current required to discharge a LIC
3.6
discharge accumulated electric energy
amount of discharged energy of a LIC accumulated from the discharge start time (3.7) to the
time to reach rated lower limit voltage (3.10)
3.7
discharge start time
T
time when discharge of a LIC starts
Note 1 to entry: It is the basis time for the calculation start time (3.8) and the time to reach rated lower limit voltage
(3.10).
3.8
calculation start time
T
time at a selected start point used to calculate the capacitance (3.12) and the internal resistance
(3.14) during discharge of a LIC
Note 1 to entry: The calculation start time is expressed as elapsed time since the discharge start time (3.7).
3.9
calculation end time
T
time at a selected end point used to calculate the capacitance (3.12) and the internal resistance
(3.14) during discharge of a LIC
Note 1 to entry: The calculation end time is expressed as elapsed time since the discharge start time (3.7).
3.10
t
...