Lead-acid starter batteries - Part 5: Properties of battery housings and handles

This European Standard covers multicell battery housings produced of polypropylene as the preferred material for lead-acid batteries as an energy storage device for cranking combustion engines, for lighting and for additional equipment used in road vehicles. These batteries are all referred to as starter batteries. This European Standard describes battery housings for batteries usable within the engine compartment and for installation under conditions where they are protected from light. Batteries of this European Standard do not provide additional features for special protection from light. Therefore, batteries with limited protection from light are to be treated as a special case. The purpose of this European Standard is to describe the properties of battery housings for its use in combustion vehicles by means of uniform examination procedures and by defining the requirements for the raw material and the complete part. The test procedure and requirements for the complete housing are described in the main part. Test procedures for the raw material are determined in Annex A. Annex B recommends possible test procedures for the material properties taken out of the complete housings, without being normative.

Blei-Akkumulatoren-Starterbatterien - Teil 5: Eigenschaften der Batteriekästen und -griffe

Batteries d'accumulateurs de démarrage au plomb - Partie 5: Propriétés des poignées et des bacs et couvercles de batteries

La présente Norme européenne concerne les logements de batterie multiples en polypropylène en tant que matériau privilégié pour les batteries au plomb faisant office de dispositif de stockage d’énergie pour le démarrage des moteurs à combustion, l’allumage et les équipements supplémentaires utilisés pour les véhicules routiers. Ces batteries sont toutes appelées batteries d’accumulateur. La présente Norme européenne décrit les logements de batteries utilisables dans le compartiment moteur et destinées à être installées à l’abri de la lumière. Les batteries de la présente Norme européenne ne proposent pas de fonctions supplémentaires pour les conditions particulières de protection contre la lumière. Par conséquent, les batteries offrant une protection limitée contre la lumière doivent être traitées comme un cas particulier. La présente Norme européenne a pour objet de décrire les propriétés des logements de batterie utilisés dans les véhicules à combustion au moyen de modes opératoires d’examen uniforme, et en définissant les exigences quant aux matières premières et à la partie complète. Le mode opératoire d’essai et les exigences liés au logement complet sont décrits dans la partie principale. Les modes opératoires d'essai relatifs aux matières premières sont déterminés dans l'Annexe A. L’Annexe B, qui n’est pas normative, recommande les modes opératoires d’essai possibles relatifs aux propriétés du matériau des logements.

Svinčeno-kislinske zaganjalne baterije - 5. del: Lastnosti baterijskih ohišij in ročic

Ta evropski standard zajema večcelična baterijska ohišja, proizvedena iz polipropilena kot prednostnega materiala za svinčeno-kislinske baterije kot naprave za shranjevanje energije za zagonske motorje z izgorevanjem, za osvetljavo in za dodatno opremo, ki se uporablja v cestnih vozilih. Vse te baterije se navajajo kot zaganjalne baterije. Ta evropski standard opisuje baterijska ohišja za baterije, uporabne znotraj prostora za vgradnjo motorja in za namestitve pod pogoji varovanja pred svetlobo. Baterije tega evropskega standarda nimajo dodatnih lastnosti za posebno varovanje pred svetlobo. Potemtakem se baterije z omejenim varovanjem pred svetlobo štejejo kot posebni primer. Namen tega evropskega standarda je opisati lastnosti baterijskih ohišij za uporabo v vozilih z izgorevanjem s pomočjo enotnih postopkov preverjanja in z opredelitvijo zahtev za surovino in dokončan del. Preskusni postopek in zahteve za dokončano ohišje so opisani v glavnem delu. Preskusni postopki za surovino so določeni v Dodatku A. Dodatek B priporoča možne preskusne postopke za lastnosti materiala, vzetega iz dokončanega ohišja, ki niso normativni.

General Information

Status
Published
Publication Date
22-Nov-2010
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
10-Nov-2010
Due Date
15-Jan-2011
Completion Date
23-Nov-2010

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SLOVENSKI STANDARD
SIST EN 50342-5:2011
01-januar-2011
6YLQþHQRNLVOLQVNH]DJDQMDOQHEDWHULMHGHO/DVWQRVWLEDWHULMVNLKRKLãLMLQURþLF
Lead-acid starter batteries - Part 5: Properties of battery housings and handles
Blei-Akkumulatoren-Starterbatterien - Teil 5: Eigenschaften der Batteriekästen und -griffe
Batteries d'accumulateurs de démarrage au plomb - Partie 5: Propriétés des poignées et
des bacs et couvercles de batteries
Ta slovenski standard je istoveten z: EN 50342-5:2010
ICS:
29.220.20 .LVOLQVNLVHNXQGDUQLþOHQLLQ Acid secondary cells and
EDWHULMH batteries
SIST EN 50342-5:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50342-5:2011

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SIST EN 50342-5:2011

EUROPEAN STANDARD
EN 50342-5

NORME EUROPÉENNE
November 2010
EUROPÄISCHE NORM

ICS 29.220.20


English version


Lead-acid starter batteries -
Part 5: Properties of battery housings and handles



Batteries d'accumulateurs de démarrage Blei-Akkumulatoren-Starterbatterien -
au plomb - Teil 5: Eigenschaften der Batteriekästen
Partie 5: Propriétés des poignées et des und -griffe
bacs et couvercles de batteries





This European Standard was approved by CENELEC on 2010-11-01. 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 Central Secretariat 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 Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50342-5:2010 E

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SIST EN 50342-5:2011
EN 50342-5:2010 – 2 –
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 21X, Secondary cells and
batteries. It was submitted to the Unique Acceptance Procedure and was accepted by CENELEC as
EN 50342-5 on 2010-11-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights.
The following dates were fixed:
– latest date by which the EN has to be implemented

at national level by publication of an identical

national standard or by endorsement
(dop) 2011-11-01

– latest date by which the national standards conflicting

with the EN have to be withdrawn
(dow) 2013-11-01


__________

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SIST EN 50342-5:2011
– 3 – EN 50342-5:2010
Contents

1 Scope . 4
2 Normative references . 4
3 Definitions . 4
4 Examinations . 5
4.1 General . 5
4.2 Examination of the raw materials . 5
4.2.1 General . 5
4.2.2 Examination on resistance against chemical substances . 5
4.3 Examinations of the battery case . 6
4.3.1 General . 6
4.3.2 Test on disruptive strength . 6
4.3.3 Warm storage . 6
4.3.4 Top load test . 6
4.3.5 Examination on specimens taken out of a battery case . 7
4.3.6 Heat resistance test . 7
4.4 Examinations on the battery . 7
4.4.1 General . 7
4.4.2 Bulge test . 8
4.4.3 Impact test . 8
4.4.4 Strength of the handles tested with continuous load . 8
4.4.5 Strength of the handles tested with sudden load . 9
4.4.6 Hardness of hold-downs for bottom fixation . 9
4.4.7 Thermal shocks . 10
Annex A (normative) Datasheet „Material for battery container‟ . 11
Annex B (informative) Datasheet „Specimen of battery container‟ . 12
Annex C (informative) Devices for testing the ledges . 13
Annex D (informative) Impact test on battery container . 14
Annex E (informative) Laboratory equipment to test the resistance against chemicals . 18
Bibliography . 19
Figures
Figure 1 – Top load test . 7
Figure 2 – Sudden load test . 9
Figure C.1 – Device for testing the ledges, fixation by means of a wedge . 13
Figure C.2 – Device for testing ledges, paw with metering device . 13
Figure D.1 – Examples of impacts and injection points on the containers . 15
Figure D.2 – Examples of holes . 16
Figure D.3 – Examples of holes/cracks . 16
Figure E.1 – Laboratory equipment to test the resistance against chemicals . 18
Table
Table 1 – Resistance against chemicals . 5

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SIST EN 50342-5:2011
EN 50342-5:2010 – 4 –
1 Scope
This European Standard covers multicell battery housings produced of polypropylene as the preferred
material for lead-acid batteries as an energy storage device for cranking combustion engines, for lighting and
for additional equipment used in road vehicles. These batteries are all referred to as starter batteries.
This European Standard describes battery housings for batteries usable within the engine compartment and
for installation under conditions where they are protected from light.
Batteries of this European Standard do not provide additional features for special protection from light.
Therefore, batteries with limited protection from light are to be treated as a special case.
The purpose of this European Standard is to describe the properties of battery housings for its use in
combustion vehicles by means of uniform examination procedures and by defining the requirements for the
raw material and the complete part.
The test procedure and requirements for the complete housing are described in the main part. Test
procedures for the raw material are determined in Annex A. Annex B recommends possible test procedures
for the material properties taken out of the complete housings, without being normative.
2 Normative references
The following referenced documents are indispensable for the application 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.
EN 50342-2 Lead-acid starter batteries – Part 2: Dimensions of batteries and marking of
terminals
IEC 60050-482 International Electrotechnical Vocabulary – Part 482: Primary and secondary cells
and batteries
EN ISO 527 (series) Plastics – Determination of tensile properties (ISO 527 series)

3 Definitions
For the purposes of this document, the terms and definitions given in IEC 60050-482 and the following apply.
3.1
battery housing
welded unit of battery case and lid
3.2
battery container
case with multiple cell compartments
3.3
Battery lid
cover for common covering of all cells of a battery case
3.4
hold-downs
ledges at the lower part of the battery case for fixation within vehicle. ( see EN 50342-2 and EN 50342-4)

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SIST EN 50342-5:2011
– 5 – EN 50342-5:2010
4 Examinations
4.1 General
Depending on the requirements, the examination has to be carried out on standardized samples of raw
materials, battery case, battery housing, or complete battery.
4.2 Examination of the raw materials
4.2.1 General
The examination of the raw materials has to be performed by the supplier of the raw material in accordance
to specifications of Annex A and, if not agreed otherwise, be documented in the material specification of a
new PP material to be purchased.
These examinations are preferably ISO Standards. The specimens shall be selected according to the
specifications in Annex A and the tests are to be carried out according to the specifications in Annex A. For
documentation the form of Annex A shall be used.
The samples must be aged before starting the test for at least 4 days at (23°± 0,5) °C and must be tested
within 3 months.
The material properties which have only low impact on the complete housing properties, e. g. due to the
design of the battery housing, are mentioned in the annexes only for information.
4.2.2 Examination on resistance against chemical substances
The purpose of this test is to check if chemical substances which can occur in the vicinity of batteries and
have some chemical affinity to PP can significantly weaken the material properties.
The test shall be carried out on specimens 5A according to EN ISO 527. The specimens are prepared by
injection moulding and must be aged at 100 °C for 4d before starting the test. Each sample has to be
weighed and all samples for one liquid are treated together under reflux at a temperature and time according
to Table 1. In Annex E a laboratory equipment for heat treatment under reflux is depicted. For statistical
reasons the test shall be carried out on at least 6 samples.
After treatment each sample shall be dried, weighed and then tested on tensile according to EN ISO 527.
The maximum change in weight and tensile strength at yield relative in % to the initial data before treatment
with chemicals is given in Table 1.
Table 1 – Resistance against chemicals
Substance Test Test time for Max. change Max. change
temperature boiling under in weight in tensile
for boiling reflux at yield
under reflux
°C h % %
Synthetic motor oil 70 72 10 -20
a
Gasoline > 95 ROZ 70 72 10 -30
b
Diesel 70 72 20 -30
c
Biodiesel 70 72 15 -30
(Rape seed methyl ester)
Brake fluid DOT 4 70 72 1 ± 5
Cooling agent 70 72 < 0,5 ± 5
(Commercial mixture)
Sulphuric acid 1,28 g/ml at 70 1 000 < 0,5 ± 5
25 °C
b c
a
According to DIN 51604-B , according to DIN EN 590 , according to DIN EN 14214

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SIST EN 50342-5:2011
EN 50342-5:2010 – 6 –
4.3 Examinations of the battery case
4.3.1 General
These examinations have to be performed by the manufacturer of the battery / case / lid and documented
with an “Initial Sample Inspection Report” that shall be provided to the purchaser or by the battery producer
in case of complete batteries.
4.3.2 Test on disruptive strength
The purpose of this test is to prove an injection quality without risk of acid leakage by small holes.
Apparatus: Commercial high voltage generator with connected adequate test electrodes, in most
1)
cases two adjacent plates . The voltage must be adjustable up to 25 kV ± 2 KV DC or AC
sinus peak to peak with a frequency of 50±10 Hz. The maximum output current of the
generator must be adjustable to a current limit ≤ 1 mA.
Execution: The sample to be tested must be dry. It has to be positioned between the test electrodes in
a way, that one electrode contacts the internal side, the other the outer side of the sample.
The applied voltage has to be adjusted to generate field strength of at least 5kV / mm up to
about 10kV. To find the operation threshold a test sample e.g. a battery case with a thrilled
hole of 1.0 ± 0.1 mm in diameter can be used. The electric field is adjusted until the set
current limit is reached.
Requirement: No disruptive discharge = set current limit is reached.
1)
 Electrodes with brush design can be beneficial. The electric field is higher on the surface of a tip but decreases with square
of distance; system must be checked by experiment.
4.3.3 Warm storage
The purpose of this test is to prove the stability of the battery case. The test discovers internal tensions of the
injection moulding process which would result in a warping of the container.
Apparatus: Heated cabinet with sufficient power. The air temperature shall be recovered to the target
temperature within 10 min after the probe has been installed therein. The temperature must
be kept at 2 °C.
Execution: The battery case is put into the preheated heat cabinet (120 2) °C in a way that it is not
mechanically stressed. It shall not touch other probes or the walls of the heat cabinet and it
should be evenly distributed to the available space.
After 2 h of storage the battery case shall be taken out of the heat cabinet and shall be
cooled to room temperature.
Requirements: The surface must remain even, no change of the original colour shall occur.
Deformation of the walls to the central position less than 1.5 % referred to the width of the
cells. Changes in overall dimensions in length width and height shall be less than 1.5 %.
4.3.4 Top load test
The purpose of this test is to check if the lid will withstand the forces of top loaded fixations and is performed
on complete batteries.
Apparatus: Heating cabinet with sufficient size to be loaded with one battery and power to heat up the
battery to 85 ± 2°C.
Stamp with a size of 2 cm x 2 cm of heat resistant material (steel, aluminium, copper) loaded with a
weight of 25 ± 1 kg (equivalent to 250N / 4cm² = 61,6 N/cm²).
The system shall be fixed mechanically by a stabilization frame which assures the force being applied
even without tilting.
Metering device with a precision of ±0,1 mm
Execution: The battery is placed into the heating cabinet and the stamp is positioned between two centre
cells above the cell separate wall. The cabinet is closed and heated to 85 ± 2°C. After 24 h the battery is
taken out and allowed to cool down to room temperature and the impression of the stamp is measured
with the metering device.
Requirements: The depth of the impression should not exceed 3 mm.

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SIST EN 50342-5:2011
– 7 – EN 50342-5:2010

















Figure 1 – Top load test
4.3.5 Examination on specimens taken out of a battery case
These examinations shall document the combination of raw material, design and injection process. For some
information specimens can also taken out of the walls of the battery housing and checked according to
Annex B. It has to be considered, that specimen cut out of battery cases are not according to standard ISO
conditions and the results can vary largely. This information can only be used for special aspects for
information or comparison and not as standard.
4.3.6 Heat resistance test
The purpose of this test is to secure, that during a normal battery life even under elevated temperatures as
they may occur in hot climate regions or batteries mounted near the engine, there will be no degradation of
the PP material. Degradation during battery life would result in a damage of the container and acid loss.
The test is carried out preferably with welded dummies but also containers and lids can be used. The parts
are placed into a heating cabinet. A direct contact of the parts in the walls or floor mats must be avoided so
isolating spacers out of wood or heat resistance poly material have to be used. The parts are placed into a
heating cabinet and exposed to 150 ± 2°C of circulating air.
After 300 h exposure (or 400 h for materials with increased heat stability) the parts have to be taken out of
the cabinet, cooled for 24 h to room temperature. After 24 h inspection and test can be made.
Requirements: no thermal decomposition, brittleness or cracks should be detected by visual and manual
inspection.
Drop a ball with (900 ± 20) g weight and 60 mm diameter from a high of 30 cm to the surface of the tested
part: no mechanical damage shall occur. White marks (stress whitening) can be accepted.
4.4 Examinations on the battery
4.4.1 General
...

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