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SPH Ni-Cd batteries
for single charge level:
■
1.41 ± 0.01 V/cell.
In case of frequent deep discharges
(cycling), the charging voltage values
should be increased. Contact Saft for
more details.
For use at temperature outside
+10°C to +30°C (+50°F to +86°F),
the correcting factor for charge
voltage is –2 mV/°C/cell
(– 1.1 mV/°F/cell).
7. Topping-up
No electrolyte level measurement is
necessary if you use a Saft filling-pistol,
which allows the correct level to be
obtained by a simple nozzle setting.
See nozzle lengths in tables.
If a filling-pistol is not available, the
electrolyte level can be checked by
transparence or measured in the case
of flame retardant containers.
Insert a transparent glass or plastic
tube (alkali resistant, 5 to 6 mm in
diameter) vertically into the cell vent
until it touches the top of the plates.
Close the top end of the tube by
putting a finger on it and remove the
tube from the cell.
The height of the liquid in the tube
indicates the electrolyte level above
the plates.
Level (mm)
■
SPH 16 B to SPH 47 B
SPH 11
SPH/F 16 to SPH/F 52
SPH/F 60 to SPH/F 80
SPH/F 90 to SPH/F 190
SPH/F 220 to SPH/F 320
8. Periodic maintenance
Keep the battery 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.
Check visually the electrolyte level.
■
Never let the level fall below the
minimum level mark. Use only
distilled or deionized water to top-up.
Experience will tell the time interval
between topping-up.
Table A:
Cell type
Standard range:
SPH 11
SPH/F 16
SPH/F 21
SPH/F 24
SPH/F 28
SPH/F 36
SPH/F 45
SPH/F 52
SPH/F 60
SPH/F 70
SPH/F 80
SPH/F 90
SPH/F 100
SPH/F 115
SPH/F 130
SPH/F 150
SPH/F 170
SPH/F 190
SPH/F 220
SPH/F 250
SPH/F 280
SPH/F 300
SPH/F 320
Compact range:
SPH 16 B
SPH 21 B
SPH 28 B
SPH 36 B
high low
SPH 47 B
25
5
25
5
Note: Once the battery has been
55
5
filled with the correct electrolyte at
70
5
the battery factory, there is no need
to check the electrolyte density
65
5
periodically. Interpretation of density
55
5
measurements is difficult and could
be misleading.
C heck the charging voltage.
■
It is of great importance that the
recommended charging voltage
remains unchanged.
The charger should be checked and
recorded at least once yearly.
If a cell float is found below 1.30 V,
high rate charge is recommended to
apply to the cell concerned.
C heck every two years that all
■
connectors are tight.
Capacity
Charge current
Electrolyte per cell
C
Ah
0.2 C
A
Solid
5
5
(Ah)
(A)
(kg)
11
2.2
0.07
16
3.2
0.13
21
4.2
0.11
24
4.8
0.10
28
5.6
0.16
36
7.2
0.24
45
9.0
0.22
52
10.4
0.20
60
12.0
0.26
70
14.0
0.24
80
16.0
0.21
90
18.0
0.46
100
20.0
0.44
115
23.0
0.38
130
26.0
0.44
150
30.0
0.55
170
34.0
0.64
190
38.0
0.61
220
44.0
1.39
250
50.0
1.31
280
56.0
1.21
300
60.0
1.16
320
64.0
1.10
16
3.2
0.06
21
4.2
0.04
28
5.6
0.14
36
7.2
0.11
47
9.4
0.08
Terminal
Length of cell
Liquid
per pole
topper nozzle
(l)
0.25
M 10
0.44
M 10
0.38
M 10
0.35
M 10
0.54
M 10
0.84
M 10
0.76
M 10
0.70
M 10
0.89
M 10
0.82
M 10
0.71
M 10
1.60
M 12
1.50
M 12
1.30
M 12
1.50
M 12
1.90
M 12
2.20
2 x M 12
2.10
2 x M 12
4.80
2 x M 12
4.50
2 x M 12
4.20
2 x M 12
4.00
2 x M 12
3.80
2 x M 12
0.20
M 10
0.15
M 10
0.47
M 10
0.39
M 10
0.28
M 10
The connectors and terminal nuts
should be corrosion-protected by
coating with neutral vaseline.
H igh water consumption of the
■
battery is usually caused by improper
voltage setting of the charger.
9. Changing electrolyte
Due to the sintered electrode plastic
bonded technology, it is not necessary
to change the electrolyte during the life
time of the cell.
10. Environment
To protect the environment all used
batteries must be recycled.
Contact your local Saft representative
for information.
(mm)
45
65
65
65
65
65
65
65
50
50
50
45
45
45
45
45
45
45
55
55
55
55
55
45
45
45
45
45
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