Capítulo 10
ANEXO 2
For commissioning of unfilled GiS/PzS-batte-
ries see separate instructions.
2. Operation
EN 50272-3 "Traction batteries for industrial
trucks" is the standard, which applies to the
operation traction batteries in industrial trucks.
2.1 Discharging
Ventilation openings must not be sealed or
covered.
Electrical connections (e.g. plugs) must only be
made or broken in the open circuit condition.
To achieve the optimum life for the battery, ope-
rating discharges of more than 80% of the rated
capacity should be avoided (deep discharge).
This corresponds to an electrolyte specific gravi-
ty of 1.13 kg/l at the end of the discharge (only
GiS/ PzS-batteries).
To measure the state of discharge use only the
battery manufacturer recommended discharge
indicators.
Discharged batteries must be recharged imme-
diately and must not be left discharged. This also
applies to partially discharged batteries. Other-
wise the life of battery will be reduced.
2.2 Charging
Only direct current must be used for charging. All
charging procedures in accordance with DIN
41773 and DIN 41774 are permitted.
For GiV-batteries these charging procedures
must only be applied in the manufacturer appro-
ved modifications. Therefore only battery manu-
facturer approved chargers must be used.
Only connect the battery assigned to a charger,
suitable for the size of battery, in order to avoid
overloading of the electric cables and contacts
and unacceptable gassing of the cells.
GiV-batteries have a low gas emission.
In the gassing stage the current limits given in
EN 50272-3 must not be exceeded. If the char-
ger was not purchased together with the battery
it is best to have its suitability checked by the
manufacturers service department.
When charging, proper provision must be made
for venting of the charging gases. Battery con-
tainer lids and the covers of battery compart-
ments must be opened or removed. The vent
plugs should stay on the cells and remain clo-
sed.
With the charger switched off connect up the
battery, ensuring that the polarity is correct
(positive to positive, negative to negative). Now
switch on the charger.
When charging the temperature of the battery
rises by about 10 K, so charging should only
begin if the battery temperature is below 35° C
(GiV) or 45° C (GiS/PzS). The electrolyte tempe-
rature of batteries should be at least + 15° C
(GiV) or +10° C (GiS/PzS) before charging.
Otherwise a full charge will not be achieved.
For GiS/PzS-batteries a charge is finished when
the specific gravity of the electrolyte and the bat-
tery voltage have remained constant for two
hours.
For GiV-batteries only regulated chargers are
permitted. These chargers switch off automati-
cally. Are the temperatures a longer time higher
than 40° C or lower than 15° C, so the chargers
need a temperatures regulated voltage. (Attend
to instructions of battery manufacturer).
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2.3 Equalising charge
Equalising charges are used to safeguard the life
of the battery and to maintain its capacity. They
are necessary after deep discharges, repeated
incomplete recharges and charges to an IU cha-
racteristic curve. Equalising charges are carried
out following normal charging.
For equalising charge of GiV-batteries only bat-
tery manufacturer approved chargers must be
used.
For GiS/PzS-batteries the charging current
must not exceed 5 A/100 Ah of rated capacity
(end of charge – see point 2.2).
Watch the temperature!
2.4 Temperature
An electrolyte temperature of 30° C is specified
as the rated temperature. Higher temperatures
shorten the life of the battery, lower temperatu-
res reduce the capacity available.
45° C (GiV) or 55° C (GiS/PzS) is the upper tem-
perature limit and is not acceptable as an opera-
ting temperature.
Therefore the batteries should not be left in
directly sunlight.
2.5 Electrolyte
GiV-Batteries: The electrolyte is immobilised.
The density of the electrolyte cannot be measu-
red.
GiS/PzS-Batteries: The rated specific gravity
(S. G.) of the electrolyte is related to a tempera-
ture of 30° C and the nominal electrolyte level in
the cell in fully charged condition.
Higher temperatures reduce the specified gravi-
ty of the electrolyte, lower temperatures increase
it. The temperature correction factor is -0.0007
kg/l per K, e.g. an electrolyte specific gravity of
1.28 kg/l at 45° C corresponds to an S.G. of 1.29
kg/l at 30° C. The electrolyte must conform to
the purity regulations in DIN 43530-2.
3. Maintenance
Do not refill with water in GIV-Batteries!
3.1 Daily
Charge the battery immediately after every dis-
charge.
GIS/PzS-batteries: Towards the end of charge
the electrolyte level should be checked and if
necessary topped up to the specified level with
purified water. The electrolyte level must not fall
below the top of the separator or the electrolyte
"min" level mark.
3.2 Weekly
Visual inspection after recharging for signs of dirt
and mechanical damage. If the battery is char-
ged regularly with an IU characteristic curve an
equalising charge must be carried out (see point
2.3).
3.3 Monthly (only GiS/PzS-batteries)
At the end of the charge the voltages of all cells
or bloc batteries should be measured with the
charger switched on, and recorded.
After charging has ended the specific gravity and
the temperature of the electrolyte in all cells
should be measured and recorded. If significant
changes from earlier measurements or differen-
ces between the cells or bloc batteries are found
Deutsche EXIDE GmbH
Im Thiergarten
63654 Büdingen – Germany
Tel.: +49 (0) 60 42 / 81 454
Fax: +49 (0) 60 42 / 81 398
www.industrialenergy.exide.com
further testing and maintenance by the service
department should be requested.
3.4 Quarterly (only GiV-batteries)
After the end of the charge and a rest time of 5 h
following should be measured and recorded:
• the voltages of the battery
• the voltages of every cells or blocs
If significant changes from earlier measurements
or differences between the cells or bloc batteries
are found, further testing and maintenance by
the service department should be requested.
3.5 Annually (only for batteries in steel trays)
In accordance with EN 1175-1 at least once per
year, an electrical specialist must check the insu-
lation resistance of the truck and the battery.
The tests on the insulation resistance of the bat-
tery must be conducted in accordance with EN
1987-1.
The insulation resistance of the battery thus
determined must not be below a value of 50 Ω
per Volt of nominal voltage, in compliance with
EN 50272-3.
For batteries up to 20 V nominal voltage the
minimum value is 1000 Ω.
4. Care of the battery
The battery should always be kept clean and dry
to prevent tracking currents. Cleaning must be
done in accordance with the ZVEI code of prac-
tice "The Cleaning of Vehicle Traction batteries".
5. Storage
If batteries are taken out of service for a lengthy
period they should be stored in the fully charged
condition in a dry, frost-free room. To ensure the
battery is always ready for use a choice of char-
ging methods can be made:
• a quarterly (GiS/PzS) or a yearly (GiV) full
charging like charge as in point 2.2. If any
consumer is connected with, e.g. measure or
controlling systems, it can be, that this char-
ging is necessary every 14 days.
• float charging at a charging voltage of 2.25 V
(GiS/PzS) or 2,3 V (GiV) x the number of cells.
The storage time should be taken into account
when considering the life of the battery.
6. Malfunctions
If malfunctions are found on the battery or the
charger our service department should be called
without delay. The measurements taken in point
3.3 will facilitate fault finding and their eliminati-
on.
A service contract with us will make it easier to
detect and correct faults in good time.
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State: September 2004