IEC TS 62257-8-1:2018

IEC TS 62257-8-1 ®
Edition 2.0 2018-02
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural
electrification –
Part 8-1: Selection of batteries and battery management systems for stand-alone
electrification systems – Specific case of automotive flooded lead-acid batteries
available in developing countries
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IEC TS 62257-8-1 ®
Edition 2.0 2018-02
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural

electrification –
Part 8-1: Selection of batteries and battery management systems for stand-alone

electrification systems – Specific case of automotive flooded lead-acid batteries

available in developing countries

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-5423-3

– 2 – IEC TS 62257-8-1:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Batteries and battery management system selection. 9
4.1 Battery technical characteristics . 9
4.1.1 Battery cases . 9
4.1.2 Battery terminals . 9
4.1.3 Electrolyte . 9
4.2 Comparative tests . 10
4.2.1 General . 10
4.2.2 Evaluation of the charge and discharge current for testing (I ) . 10
test
4.2.3 Test 1: battery endurance test . 11
4.2.4 Test 2: endurance test for battery and BMS . 15
4.2.5 Test 3: Battery storability test . 17
5 Documentation . 18
6 Installation rules . 19
6.1 Packing and shipping . 19
6.2 Environment . 19
6.3 Battery accommodation, housing . 20
6.3.1 General . 20
6.3.2 Provision against electrolyte hazard . 20
6.3.3 Prevention of short circuits and protection from other effects of electric
current . 21
6.3.4 Battery enclosures . 21
6.4 Final inspection . 22
6.5 Safety . 22
6.5.1 Safety provisions . 22
6.5.2 Safety Information . 22
6.6 Administrative formalities . 23
6.7 Recycling . 23

Figure 1 – Test 1 phases . 12
Figure 2 – Phase A battery endurance test . 13
Figure 3 – Phase B battery endurance test . 14
Figure 4 – Test 2 phases . 16
Figure 5 – Phase C battery – BMS endurance test . 16
Figure 6 – Test 3 phases . 17
Figure 7 – Phase D storability test . 18
Figure 8 – Marking for spillage prevention . 19

Table 1 – Testing procedure . 10
Table 2 – Evaluation of charge and discharge current (I ) . 11
test
Table 3 – Voltage regulation variation with temperature (examples) . 11

– 4 – IEC TS 62257-8-1:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RECOMMENDATIONS FOR RENEWABLE ENERGY AND
HYBRID SYSTEMS FOR RURAL ELECTRIFICATION –

Part 8-1: Selection of batteries and battery management systems
for stand-alone electrification systems – Specific case of
automotive flooded lead-acid batteries
available in developing countries

FOREWORD
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Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.

IEC 62257-8-1, which is a technical specification, has been prepared by IEC technical
committee 82: Solar photovoltaic energy systems.
This second edition cancels and replaces the first edition published in 2007. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) increase of the applicable voltage levels and removal of the 100 kW power limit;
b) removal of the word "small" from the description of these systems.
This technical specification is to be used in conjunction with the future parts of this series as
and when they are published.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
82/1330/DTS 82/1384/RVDTS
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 62257 series, under the general title: Recommendations for
renewable energy and hybrid sys
...