SIST EN 62877-2:2016
(Main)Electrolyte and water for vented Lead Acid accumulators - Part 2: Requirements for water
Electrolyte and water for vented Lead Acid accumulators - Part 2: Requirements for water
IEC 62877-2:2016 applies to water for use with vented lead-acid cells and batteries, i.e. water for preparation of electrolyte and for topping up cells or batteries. The purity of refilling water has to meet higher requirements compared to filling electrolyte, because the impurities in the operating electrolyte will be gradually increased by regular addition of water. This international standard lays down requirements of the composition, purity and properties of water in the absence of specific recommendations from the manufacturer.
Elektrolyte und Wasser für geschlossene Blei-Säure-Batterien - Teil 2: Anforderungen an Wasser
Electrolyte et eau pour accumulateurs plomb acide ouverts - Partie 2: Exigences pour l'eau
L'IEC 62877-2:2016 s'applique à l'eau destinée à être utilisée avec les éléments et les batteries ouvertes, c'est-à-dire l'eau pour la préparation de l'électrolyte et pour le remplissage de complément des éléments ou des batteries. La pureté de l'eau utilisée pour les remplissages de réapprovisionnement doit satisfaire à des exigences plus sévères que celles applicables à l'électrolyte de remplissage, car la part des impuretés contenues dans l'électrolyte de fonctionnement va progressivement augmenter avec l'ajout régulier d'eau. La présente norme internationale établit les exigences pour la composition, la pureté et les propriétés de l'eau en l'absence de recommandations spécifiques du fabricant.
Elektrolit in voda za oddušne svinčeve akumulatorje - 2. del: Zahteve za vodo
Ta del standarda IEC 62877 se uporablja za vodo, ki se uporablja z oddušnimi svinčevimi celicami in baterijami, tj. voda za pripravo elektrolita in za dolivanje celicam ali baterijam.
Čistost dolivanja vode mora izpolnjevati višje zahteve v primerjavi s polnjenjem elektrolita, ker se z običajnim dodajanjem vode količina nečistoč v delujočem elektrolitu postopoma veča.
Ta mednarodni standard določa zahteve za sestavo, čistost in lastnosti vode, kadar ni posebnih priporočil proizvajalca.
General Information
- Status
- Published
- Publication Date
- 13-Jun-2016
- Technical Committee
- ISCB - Secondary cells and batteries
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 26-Nov-2015
- Due Date
- 31-Jan-2016
- Completion Date
- 14-Jun-2016
Overview
SIST EN 62877-2:2016 is a European Standard developed by CLC, based on IEC 62877-2:2016, setting out the requirements for water used in vented lead acid accumulators. This standard specifically addresses water for the preparation of electrolyte and for topping up vented lead-acid cells and batteries. Given that impurities introduced by water directly impact battery performance and longevity, this standard establishes stringent physical and chemical criteria to ensure the purity and suitability of water in battery maintenance and manufacturing.
The main purpose of SIST EN 62877-2:2016 is to define minimum acceptable levels of purity, composition, and storage conditions for purified water used in lead-acid battery applications, especially when no specific manufacturer recommendations exist. This helps to maintain battery efficiency, reduce damage caused by contaminants, and extend battery life.
Key Topics
Scope and Application
Defines use of purified water for electrolyte preparation and battery topping-up in vented lead-acid accumulators.Physical Requirements of Purified Water
- Clarity: Water must be clear, colorless, and odorless with no oil contamination.
- pH Range: Between 5 and 7 to avoid harmful acidic or alkaline conditions.
- Electrical Conductivity: Freshly prepared water should have conductivity less than 10 µS/cm and less than 30 µS/cm before filling to limit dissolved ions.
Chemical Impurity Limits
Strict maximum allowable concentrations (in mg/l) for:- Evaporation residue: Max 10 mg/l
- Oxidizable organic substances (as KMnO4): Max 20 mg/l
- Heavy metals such as lead, antimony, arsenic, tin, bismuth, copper, cadmium, zinc, selenium, and tellurium: Max 0.1 mg/l each, total max 0.5 mg/l
- Iron, cobalt, nickel, chromium, manganese: Max 0.1 mg/l each, total max 0.5 mg/l
- Halogens (calculated as chloride): Max 0.5 mg/l
- Nitrogen compounds: Nitrate max 2.0 mg/l, Ammonia max 40 mg/l
Water Purification Methods
Purified water can be obtained from tap water via distillation or ion exchange to meet these standards.Storage Recommendations
Water must be stored in airtight containers made from non-metallic materials such as glass, ebonite, polyethylene, or polypropylene to avoid contamination and prevent the dissolution of metal ions. Use of hoses made from PVC, rubber, or polyethylene is advised. Metal containers are prohibited.
Applications
Battery Manufacturing
Ensures water purity during the initial preparation of electrolyte, which is critical for correct chemical composition and battery function.Battery Maintenance and Servicing
Specifies topping-up water requirements to maintain electrolyte levels and compensate for water loss without introducing impurities that degrade battery life.Industrial and Automotive Sectors
Applies to lead-acid batteries used across multiple sectors such as UPS systems, telecommunications, renewable energy storage, and vehicles, ensuring consistent battery reliability and performance.Quality Control in Electrochemical Processes
Supports production quality by specifying chemical and physical water standards, minimizing causes of battery failure related to electrolyte contamination.
Related Standards
EN 62877-1:2016 – Electrolyte and water for vented lead acid accumulators – Part 1: Requirements for electrolyte.
Complementary standard focusing on the electrolyte itself rather than the water used in its preparation.IEC 62485-2: Safety Requirements for Secondary Batteries and Battery Installations – Part 2: Stationary Batteries
Addresses safety aspects relevant to stationary battery systems.IEC 62485-3: Safety Requirements for Secondary Batteries and Battery Installations – Part 3: Traction Batteries
Covers safety in traction battery applications, relevant where lead-acid batteries are employed.
Summary
SIST EN 62877-2:2016 is a critical standard defining the physical, chemical, and storage requirements for water used in vented lead-acid accumulator batteries. By enforcing stringent impurity limits and proper handling guidelines, it helps manufacturers and maintenance professionals maintain battery efficiency, safety, and longevity. Adopting this standard enhances reliability across various applications where lead-acid batteries are integral to power and energy storage solutions.
Keywords: lead acid accumulator water requirements, purified water for batteries, vented lead acid batteries, electrolyte preparation, water purity standards, battery maintenance, CLC standards for battery water, EN 62877-2, IEC 62877-2.
Frequently Asked Questions
SIST EN 62877-2:2016 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Electrolyte and water for vented Lead Acid accumulators - Part 2: Requirements for water". This standard covers: IEC 62877-2:2016 applies to water for use with vented lead-acid cells and batteries, i.e. water for preparation of electrolyte and for topping up cells or batteries. The purity of refilling water has to meet higher requirements compared to filling electrolyte, because the impurities in the operating electrolyte will be gradually increased by regular addition of water. This international standard lays down requirements of the composition, purity and properties of water in the absence of specific recommendations from the manufacturer.
IEC 62877-2:2016 applies to water for use with vented lead-acid cells and batteries, i.e. water for preparation of electrolyte and for topping up cells or batteries. The purity of refilling water has to meet higher requirements compared to filling electrolyte, because the impurities in the operating electrolyte will be gradually increased by regular addition of water. This international standard lays down requirements of the composition, purity and properties of water in the absence of specific recommendations from the manufacturer.
SIST EN 62877-2:2016 is classified under the following ICS (International Classification for Standards) categories: 29.220.20 - Acid secondary cells and batteries. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase SIST EN 62877-2:2016 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2016
(OHNWUROLWLQYRGD]DRGGXãQHVYLQþHYHDNXPXODWRUMHGHO =DKWHYH]DYRGR
Electrolyte and water for vented Lead Acid accumulators - Part 2: Requirements for
water
Electrolyte et eau pour accumulateurs plomb acide ouverts - Partie 2: Exigences pour
l'eau
Ta slovenski standard je istoveten z: EN 62877-2:2016
ICS:
29.220.20 .LVOLQVNLVHNXQGDUQLþOHQLLQ Acid secondary cells and
EDWHULMH batteries
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 62877-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2016
ICS 29.220.20
English Version
Electrolyte and water for vented lead acid accumulators -
Part 2: Requirements for water
(IEC 62877-2:2016)
Electrolyte et eau pour accumulateurs plomb-acide ouverts - Elektrolyte und Wasser für geschlossene Blei-Säure-Batterien -
Partie 2: Exigences pour l'eau Teil 2: Anforderungen an Wasser
(IEC 62877-2:2016) (IEC 62877-2:2016)
This European Standard was approved by CENELEC on 2016-03-02. 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 62877-2:2016 E
European foreword
The text of document 21/875/FDIS, future edition 1 of IEC 62877-2, prepared by IEC/TC 21
"Secondary cells and batteries" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62877-2:2016.
The following dates are fixed:
(dop) 2016-12-02
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2019-03-02
• latest date by which the national standards conflicting with
the document have to be withdrawn
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 62877-2:2016 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 62485-3 NOTE Harmonized as EN 62485-3.
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 62877-1 - Electrolyte and water for vented lead EN 62877-1 -
acid accumulators -
Part 1: Requirements for electrolyte
IEC 62877-2 ®
Edition 1.0 2016-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrolyte and water for vented lead acid accumulators –
Part 2: Requirements for water
Électrolyte et eau pour accumulateurs plomb-acide ouverts –
Partie 2: Exigences pour l'eau
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.20 ISBN 978-2-8322-3138-8
– 2 – IEC 62877-2:2016 © IEC 2016
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 5
4 Physical and chemical requirements of water for lead-acid batteries . 6
5 Storage of purified water . 7
Bibliography . 8
Table 1 – Physical properties and requirements of purified water . 6
Table 2 – Chemical properties and requirements of purified water . 6
IEC 62877-2:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROLYTE AND WATER FOR VENTED
LEAD ACID ACCUMULATORS –
Part 2: Requirements for water
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 sub
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