SIST-TS CEN ISO/TS 23625:2022

Small craft - Lithium-ion batteries (ISO/TS 23625:2021)

This document provides requirements and recommendations for the selection and installation of lithium-ion batteries for boats. It applies to lithium-ion batteries and to battery systems with a capacity greater than 600 Wh, installed on small craft for providing power for general electrical loads and/or to electric propulsion systems. It is primarily intended for manufacturers and battery installers.

Kleine Wasserfahrzeuge - Lithium-Ionen-Batterien (ISO/TS 23625:2021)

Dieses Dokument enthält Anforderungen und Empfehlungen für die Auswahl und den Einbau von Lithium-Ionen-Batterien auf Booten. Es ist anzuwenden für Lithium-Ionen-Batterien und Batteriesysteme mit einer Kapazität von mehr als 600 Wh, die in kleinen Wasserfahrzeugen zur Versorgung allgemeiner elektrischer Verbraucher und/oder elektrischer Antriebssysteme eingebaut sind. Es ist hauptsächlich für Hersteller und Batterieinstallateure vorgesehen.

Petits navires - Batteries lithium-ion (ISO/TS 23625:2021)

Le présent document donne les exigences et les recommandations relatives à la sélection et à l’installation de batteries lithium-ion pour des bateaux. Il s’applique aux batteries lithium-ion et aux systèmes de batteries d’une capacité supérieure à 600 Wh, installés sur les petits bateaux pour fournir l’énergie nécessaire pour les charges électriques générales et/ou les systèmes de propulsion électriques. Il est principalement destiné aux fabricants et aux installateurs de batteries.

Mala plovila - Litij-ionske baterije (ISO/TS 23625:2021)

Ta dokument podaja zahteve in priporočila za izbiro in vgradnjo litij-ionskih baterij za plovila. Uporablja se za litij-ionske baterije in baterijske sisteme z zmogljivostjo
nad 600 Wh, ki se vgradijo v mala plovila za zagotavljanje energije za splošne električne obremenitve in/ali električne pogonske sisteme. Namenjen je predvsem proizvajalcem in monterjem baterij.

General Information

• Status: Withdrawn
• Publication Date: 24-Aug-2022
• Withdrawal Date: 24-Mar-2025
• ICS: 47.080 - Small craft
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 24-Mar-2025
• Due Date: 16-Apr-2025
• Completion Date: 25-Mar-2025
• Ref Project: CEN ISO/TS 23625:2022 - Small craft - Lithium-ion batteries (ISO/TS 23625:2021)

Relations

• Revised: SIST EN ISO 23625:2025 - Small craft - Lithium-ion batteries (ISO 23625:2025)
• Effective Date: 04-Oct-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2022
Mala plovila - Litij-ionske baterije (ISO/TS 23625:2021)
Small craft - Lithium-ion batteries (ISO/TS 23625:2021)
Petits navires - Batteries lithium-ion (ISO/TS 23625:2021)
Ta slovenski standard je istoveten z: CEN ISO/TS 23625:2022
ICS:
47.080 Čolni Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN ISO/TS 23625
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
August 2022
TECHNISCHE SPEZIFIKATION
ICS 47.080
English Version
Small craft - Lithium-ion batteries (ISO/TS 23625:2021)
Petits navires - Batteries lithium-ion (ISO/TS
23625:2021)
This Technical Specification (CEN/TS) was approved by CEN on 24 July 2022 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 23625:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO/TS 23625:2021 has been prepared by Technical Committee ISO/TC 188 "Small craft” of
the International Organization for Standardization (ISO) and has been taken over as
held by SIS.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN 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 standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO/TS 23625:2021 has been approved by CEN as CEN ISO/TS 23625:2022 without any
modification.
TECHNICAL ISO/TS
SPECIFICATION 23625
First edition
2021-03
Small craft — Lithium-ion batteries
Reference number
ISO/TS 23625:2021(E)
©
ISO 2021
ISO/TS 23625:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO/TS 23625:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 System design requirements . 3
5 Safe operating limits . 4
6 General lithium-ion battery installations . 4
7 Fire protection and cell venting . 5
8 Battery management system and testing. 6
9 Manufacturer’s safety information and operator’s manual . 7
Annex A (informative) Battery thermal runaway . 8
Bibliography . 9
ISO/TS 23625:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 188, Small craft.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

TECHNICAL SPECIFICATION ISO/TS 23625:2021(E)
Small craft — Lithium-ion batteries
1 Scope
This document provides requirements and recommendations for the selection and installation of
lithium-ion batteries for boats. It applies to lithium-ion batteries and to battery systems with a capacity
greater than 600 Wh, installed on small craft for providing power for general electrical loads and/or to
electric propulsion systems. It is primarily intended for manufacturers and battery installers.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
ampere interrupt capacity
AIC
maximum current a circuit breaker or fuse is rated to safely interrupt at a specific voltage
3.2
battery
collection of cells (3.7) wired in series (or series/parallel) and constituting a single physical unit
3.3
battery bank
set of batteries (3.2) electrically connected (parallel/series) to increase capacity and or voltage
3.4
battery capacity
C
capacity of the battery (3.2), expressed in ampere-hours (Ah) at a nominal voltage or in watt hours
(Wh), from the manufacturer’s specified fully charged to discharged voltage levels
Note 1 to entry: Ah capacity rating at a given discharge rate or time.
3.5
battery management system
BMS
system designed to protect a lithium-ion battery (3.2) from potentially damaging events, such as
overcharging or overdischarging and high and low temperatures
3.6
battery system
battery (3.2) or batteries and all ancillary components
ISO/TS 23625:2021(E)
3.7
cell
fundamental building block that is inside a lithium-ion battery (3.2) where electrical energy is derived
from the insertion/extraction reactions of lithium ions or oxidation/reduction reaction of lithium
between the negative electrode and the positive electrode
3.8
C rating
measure of battery (3.2) charge and discharge rating expressed as a function of the rated Ah capacity
of the battery
Note 1 to entry: A 100 Ah battery charged or discharged at 100 A is a 1C rate.
3.9
contactor
protection relay/switch controlled by the battery management system (3.5) for battery (3.2) protection
3.10
high voltage cutout
HVC
battery management system's (3.5) response to a high voltage event (3.11) that protects the battery (3.2)
from overcharging
3.11
high voltage event
HVE
condition where a cell (3.7) has been charged to a voltage above the manufacturer’s cell maximum
voltage limit
3.12
low voltage cutout
LVC
battery management system's (3.5) response to a low voltage event (3.13) that protects the battery (3.2)
from overdischarging
3.13
low voltage event
LVE
condition where a cell (3.7) has been discharged beyond the cell manufacturer’s cell low voltage limit
3.14
main contactor
in the case of a multiple contactor (3.9) system [high voltage event (3.11), low voltage event (3.13), plus
the main], device intended to be the last one to open, or closest to the battery (3.2), and, in case of a
single contactor system, device intended to serve as high voltage cutout (3.10)/low voltage cutout (3.12)/
main protection
3.15
overcharging
charging a cell (3.7) above the cell manufacturer’s upper cell voltage limit, which may result in damage
to the cell
3.16
safe operating limits
SOL
set of voltage, temperature and other parameters, within which the battery (3.2) is intended to be
operated and which, if exceeded, initiates a battery management system (3.5) response to correct the
problem or to shut the battery down
2 © ISO 2021 – All rights reserved

ISO/TS 23625:2021(E)
3.17
state of charge
SOC
indication of the amount of usable capacity available in the battery (3.2), expressed as a percentage
EXAMPLE: 0 % = empty; 100 % = full.
3.18
thermal runaway
potentially dangerous and self-propagating battery (3.2) heating condition that can occur within a cell
(3.7) or cells
4 System design requirements
4.1 All battery system design should be done in a way that ensures all installed lithium-ion batteries
are kept within the battery manufacturers specified safe operating limits.
4.2 There should be a BMS installed to control all installed lithium-ion batteries and maintain the
battery manufacturers specified safe operating limits.
NOTE A BMS can be internal or external to the battery.
4.3 It is recommended to only use cells that are constructed according to recognized international
standards, such as IEC 62619 and IEC 62620.
4.4 The battery system should be sized in accordance with the application and the battery
manufacturer’s defined operating limits, and with the appropriate C rating listed in the system
specifications.
4.5 Consideration should be given to providing power for critical systems (e.g., engine starting,
navigation lights, etc.) if a BMS shuts down the battery.
4.6 Consideration should be given to battery locations to keep the system operating temperature
within the manufacturer’s specified range.
NOTE A BMS can disconnect the battery at manufacturer-specific temperature limits.
4.7 Output control from charging sources should be within the battery manufacturer’s specified ranges.
4.8 If a shut-down condition is approaching, a BMS or system should notify the operator with a visual
and/or audible alarm, clearly perceptible from the main helm position, prior to disconnecting the battery
from the DC system.
4.9 In normal operation, different battery chemistries should not be connected in parallel or in series.
Combining/automated charging relays should not be used between systems using different chemistries.
4.10 The main battery swi
...