3
Publication No: EN-GAZ-Standard-IOM 001 Dec 2012
During the charge the electrolyte level
and temperature should be observed
(see point 5.4). The electrolyte level
should never fall below the “MIN” mark.
Battery delivered filled and charged
and stored for more than 12 months
/
the battery should be charged for 15 hours
at the rated charging current 0.2 I
t
A.
Approximately 4 hours after the end of
charging, the electrolyte level should be
adjusted to the upper electrolyte level
mark “MAX” by using distilled or deionized
water in accordance with IEC 60993. For
cells with steel cases, the electrolyte level
should be adjusted to the maximum level
according to the “Instruction for the control
of electrolyte level”.
During the charge
the electrolyte level and temperature
should be observed (see point 5.4). The
electrolyte level should never fall below
the “MIN” mark.
Battery delivered filled and charged
/ a 5
hour charge at the rated charging current
0.2 I
t
A must be carried out before putting
the battery into operation. Approximately 4
hours after the end of charging, the
electrolyte level should be adjusted to the
upper electrolyte level mark “MAX” by
using distilled or deionized water in
accordance with IEC 60993. For cells with
steel cases, the electrolyte level should be
adjusted to the maximum level according
to the “Instruction for the control of
electrolyte level”.
During the charge the
electrolyte
level
and
temperature
should be observed (see point 5.4). The
electrolyte level should never fall below
the “MIN” mark.
3.5.2 Commissioning with constant
voltage
If the charger´s maximum voltage setting
is too low to supply constant current
charging, divide the battery into two parts
that will be charged individually.
Battery
delivered
unfilled
and
discharged
/ after a period of 5 hours
from filling the electrolyte, the battery
should be charged for 30 hours at the
rated charging voltage of 1.65 V/cell. The
current limit should be 0.2 I
t
A maximum.
Approximately 4 hours after the end of
charging, the electrolyte level should be
adjusted to the upper electrolyte level
mark “MAX” by using only genuine
electrolyte. For cells with steel cases, the
electrolyte level should be adjusted to the
maximum
level
according
to
the
“Instruction for the control of electrolyte
level”.
During the charge the electrolyte
level and temperature should be
observed
(see
point
5.4).
The
electrolyte level should never fall below
the “MIN” mark.
Battery delivered filled and discharged
/
the battery should be charged for 30
hours at the rated charging voltage of 1.65
V/cell. The current limit should be 0.2 I
t
A
maximum. Approximately 4 hours after the
end of charging, the electrolyte level
should
be
adjusted
to
the
upper
electrolyte level mark “MAX” by using
distilled or deionized water in accordance
with IEC 60993. For cells with steel cases,
the electrolyte level should be adjusted to
the maximum level according to the
“Instruction for the control of electrolyte
level.
During the charge the electrolyte
level and temperature should be
observed
(see
point
5.4).
The
electrolyte level should never fall
below the “MIN” mark.
Battery delivered filled and charged
and stored for more than 12 months
/
the battery should be charged for 30 hours
at the rated charging voltage of 1.65
V/cell. The current limit should be 0.2 I
t
A
maximum. Approximately 4 hours after the
end of charging, the electrolyte level
should be adjusted to the upper electrolyte
level mark “MAX” by using distilled or
deionized water in accordance with IEC
60993. For cells with steel cases, the
electrolyte level should be adjusted to the
maximum
level
according
to
the
“Instruction for the control of electrolyte
level”.
During the charge the electrolyte
level and temperature should be
observed
(see
point
5.4).
The
electrolyte level should never fall below
the “MIN” mark.
Battery delivered filled and charged
/ a
10 hour charge at the rated charging
voltage of 1.65 V/cell must be carried out
before putting the battery into operation.
The current limit should be 0.2 I
t
A
maximum. Approximately 4 hours after the
end of charging, the electrolyte level
should be adjusted to the upper electrolyte
level mark “MAX” by using distilled or
deionized water in accordance with IEC
60993. For cells with steel cases, the
electrolyte level should be adjusted to the
maximum
level
according
to
the
“Instruction for the control of electrolyte
level”.
During the charge the electrolyte
level and temperature should be
observed
(see
point
5.4).
The
electrolyte level should never fall below
the “MIN” mark.
4. Charging in Operation
4.1 Continous battery power supply
(with occasional battery discharge)
Recommended
charging
voltage
for
ambient temper 20 °C to + 25 °C.
Do not remove the vent caps during float-,
boost charge and buffer operation. The
current limit should be 0.3 I
t
A maximum in
general.
4.1.2 Two level charge
Floating:
1.40 – 1.42 V/cell
Boost charge:
1.55 – 1.70 V/cell
A high voltage will increase the speed and
efficiency of recharging the battery.
4.1.3 Single level charge
1.45 – 1.50 V/cell
4.2 Buffer operation
Where the load exceeds the charger
rating.
1.45 – 1.55 V/cell
5. Periodic Maintenance
The battery must be kept clean using only
water. Do not use a wire brush or solvents
of any kind. Vent caps can be rinsed in
clean water if necessary but must be dried
before using them again.
Check regularly (approximately every 6
months) that all connectors, nuts and
screws are tightly fastened. Defective vent
caps and seals should be replaced. All
metal parts of the battery should be
corrosion-protected by coating with a thin
layer of anti-corrosion grease.
Do not
coat any plastic part of the battery, for
example cell cases!
Check the charging voltage. If a battery is
parallel connected it is important that the
recommended charging voltage remains
unchanged. The charging current in the
strings should also be checked to ensure it
is equal. These checks have to be carried
out once a year. High water consumption
of the battery is usually caused by
improper voltage setting of the charger.
5.1 Equalizing charge
It is recommended to carry out an
equalizing charge once a year to maintain
capacity and to stabilize the voltage levels
of the cells. The equalizing charge can be
carried out for 15 hours at 0.2 I
t
A or with
the boost charging stage in conformity with
the characteristic curve of the available
charging equipment. The electrolyte level
must be checked after an equalizing
charge.
In order to equalize the floating derating
effect, it is recommended to charge the
battery once a year for 15 hours at the
rated charging current 0.2 I
t
A. Then
discharge the battery down to 1.0 V/cell
and charge again for 8 hours at the rated
charging current 0.2 I
t
A.
