9
en
Tolerance
4 V-
6 V-
10 V-
12 V-
Block Block Block Block
+ 0.14 V
0.17 V
0.22 V
0.24 V
- 0.07 V
0.09 V
0.11 V
0.12 V
Table 4: Permissible deviation from the average
charge retention for block batteries
b) Switch mode operation
When charging, the battery is separated from the
load. Towards the end of the charging process
the charge o tage o the batter is 2.6 V 2. 5
V times the number of cells. The charging pro-
cess must be monitore see oints 2. , 2.5 an
2.6 On reaching a u charge state, the
charg ing process must be stopped or switched
to oat charge as in oint 2.3.
c) Battery Operation
(charge-/discharge operation)
The load is supplied by the battery only, whereby
the charge voltage of the battery towards the
en o the charging rocess can be 2.6 V 2. 5 V
times the number of cells. The charging process
must be monitore see oints 2. , 2.5 an 2.6
On reaching a fully charged state, the charging
process must be switched off. The battery can
be switched to the load as required.
2.3 Maintaining full charge
(float charging)
The devices used must comply with the stipula-
tions un er DI 1 3. he are to be set so that
the average cell voltage is see table 2 and the
electrolyte density should not decrease over a
lengthy period.
2.4 Equalizing charge
Because it is possible to exceed the permitted
load voltages, appropriate measures must be
taken, e.g. switch off the load.
Equalizing charges are required after deep dis-
charges and/or inadequate charges. They can
be carried out as follows:
at constant o tage o ma . 2. V c u to 2
hours
with I or
characteristic as in oint 2.6.
The electrolyte temperature must never exceed
55 . I it oes, sto charging or re ert to oat
charge to allow the temperature to drop.
The end of the equalizing charge is reached
when the electrolyte density and the cell volt-
ages no longer increase over a period of 2 hours.
(2 h -criterion only applies to I- and W-cha rac-
teristics).
2.5 Alternating currents
hen recharging u to 2. V c un er o eration
modes 2.2 the value of the alternating current is
occasionally permitted to reach 10 A (RMS) per
100 Ah nominal capacity.
In a fully charged state during float charge or
standby parallel operation the actual value of the
a ternating current must not e cee 5 M
per 100 Ah nominal capacity.
2.6 Charging currents
The charging currents are not limited during
standby parallel operation or buffer operation
IU charge characteristic with o tages u to
2. V c re erence a ues 10 u to 35 er
100 Ah nominal capacity).
Charging by I- or W-characteristic results in volt-
ages higher than 2. V c an there ore increas
ed decomposition of water. The charging cur-
rents per 100 Ah nominal capacity shown in the
following table must not be exceeded.
2.7 Temperature
The recommended operating temperature range
or ea aci batteries is 10 to 30 . tech
ni cal data apply to the nominal temperature
20° C.
he i ea o erating tem erature is 20 5 .
Higher temperatures will seriously reduce ser-
vice life. Lower temperatures reduce the avail-
able capacity. The absolute maximum tempera-
ture is 55 .
2.8 Temperature-related charge voltage
A temperature related adjustment of the charge
voltage within the operating temperature of 10° C
to 30 is not necessar . I the o erating tem
-
perature is constantly outside this range, the
charge voltage has to be adjusted.
he tem erature correction actor is 0.00 V c
er . hereb 2. V c must not be e cee e
an the o tage must not come be ow 2.15 V c
O
M 2.1 V c .
2.9 Electrolyte
The electrolyte density is diluted sulphuric acid.
he nomina e ectro te ensit 0.01 kg acc.
to technical data) is based on 20 °C when fully
charged and with the maximum electrolyte level.
Higher temperatures reduce elec trolyte density,
lower temperatures in crease electrolyte density.
he a
ro riate correction actor is 0.000 kg
per K.
am e e ectro te ensit o 1.23 kg at 35
corres on s to a ensit o 1.2 kg at 20 or
an e ectro te ensit o 1.25 kg at 5 corre
s on s to a ensit o 1.2 kg at 20 .
3. Battery maintenance and control
The electrolyte level must be checked regularly.
If it drops to the lower electrolyte level mark,
purified water must be added in accordance with
DI 3530
art ma imum con ucti it
30
cm . ee the batter c ean an r to
avoid leakage currents. Plastic parts of the bat-
tery, especially containers, must be cleaned with
pure water without additives.
At least every 6 months measure and record:
Batter o tage
Vo tage o some ce s b ock batteries
ectro te tem erature o some ce s
Batter room tem erature
ectro te ensit o some ce s
If the cell voltages deviate by more than + 0.1 V
or 0.05 V or b ocks see tab e rom the a er
-
age charge retention voltage (see table 2), and/
or if the electrolyte density of the cells of a bat-
tery string deviates from the average-value more
than - 0.01/+ 0.02 kg/l (reference values), call
customer service.
Annual measurement and recording:
Vo tage o a ce s b ock batteries
ectro te tem erature o a ce s
ectro te ensit o a ce s
Annual visual check:
crew connections
crew connections without ocking e ices
have to be checked for tightness
Batter insta ation an arrangement
Venti ation
4. Tests
Tests have to be carried out according to
I
60 96 11.
ecia instructions ike DI VD
010 an DI
501 2 ha e to be obser e .
Capacity test, for instance, acceptance test
on site:
In order to make sure the battery is fully
charge the o owing IU charge metho s must
be applied: Option 1: float charge (see table 2),
≥
2 hours. O tion 2 2. 0 V c,
≥
16 hours (max.
hours o owe b oat charge see item 2.3 ,
≥
hours. he current a ai ab e to the batter
must be between 10 100 h an 35 100 h
of the C
10
-capacity.
5. Faults
Call the services agents immediately if faults in
the battery or charging unit are found. Recorded
ata as escribe in oint 3. sim i the troub e
-
shooting and fault clearance. A service contract
for example with Exide Technologies facilitates
detecting faults in time.
6. Storage and taking out of operation
To store or decommission cells/blocks for a
longer period of time they should be fully charged
and stored in a dry and cold but frost-free room,
away from direct sunlight. To avoid damage the
following charging methods can be chosen:
To prevent damage, choose the following charg-
ing methods:
1. Refreshing charges every three months as
escribe un er oint 2. .
At average ambient temperatures of more
than the nominal temperature shorter inter-
vals can be necessary.
2. oat charging as un er oint 2.3.
7. Transport
Cells/block batteries must be transported in an
upright position. Cells/block batteries without
any visible damage are not defined as hazardous
goods under the regulations for transport of
hazardous goods by road (ADR) or by railway
(RID). They must be protected against short cir-
cuits, slipping, upsetting or damaging. Block
batteries may be suitably stacked and secured
on a ets D an ID, s ecia ro ision 59 .
It is rohibite to stack a ets. o angerous
traces of acid may be found on the exteriors of
the packing units. Cells/block batteries whose
cases leak or are damaged must be packed and
trans orte as c ass ha ar ous goo s un er
U no. 2 9 .
In case of air transport, batteries which are part
of any equipment must be disconnected at their
terminals, and the terminals must be protected
against short-circuits. This is in order to avoid
the risk of any incidents like fire etc.
8. Technical data
The nominal voltage, the number of cells, the
no minal capacity (C
10
= C ) and the battery type
are described on the type plate. Other capacities
(C
n
) at different discharge currents (I
n
) with the
corresponding discharge times (t
n
) see table
.1.1 .1.5.
Range
Float charge voltage per cell
GroE, OPzS-LA,
Energy Bloc,
2.23 V
OGi-LA block / cell
OCSM-LA
2.25 V
Table 2: Float charge voltage
Charging
Range
Cell
procedure
GroE
OGi-LA,
OPzS-LA, voltage
OCSM-LA,
Energy Bloc
(OGi-LA Block)
IU-
10 A to 35 A
up to
characteristic*)
2.40 V
I-
6.5 A 5.0 A
2.60 V-
characteristic
2.75 V
W-
9.0 A 7.0 A
at 2.40 V
characteristic
4.5 A 3.5 A
at 2.65 V
Table 3: Permissible charging currents per 100 Ah
nominal capacity, *) = recommended values
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