Note:
Once the battery has been
filled with the correct electrolyte at
the battery factory, there is no need
to check the electrolyte density
periodically. Interpretation of density
measurements is difficult and could
be misleading.
■
Check 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.
■
Check every two years that all
connectors are tight.
The connectors and terminal nuts
should be corrosion-protected by
coating with neutral vaseline.
■
High 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.
■
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)
high low
SPH 16 B to SPH 47 B
25 5
SPH 11
25 5
SPH/F 16 to SPH/F 52
55
5
SPH/F 60 to SPH/F 80
70
5
SPH/F 90 to SPH/F 190
65 5
SPH/F 220 to SPH/F 320
55 5
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.
SPH Ni-Cd batteries
SPH 11
11
2.2
0.07
0.25
M 10
45
SPH/F 16
16
3.2
0.13
0.44
M 10
65
SPH/F 21
21
4.2
0.11
0.38
M 10
65
SPH/F 24
24
4.8
0.10
0.35
M 10
65
SPH/F 28
28
5.6
0.16
0.54
M 10
65
SPH/F 36
36
7.2
0.24
0.84
M 10
65
SPH/F 45
45
9.0
0.22
0.76
M 10
65
SPH/F 52
52
10.4
0.20
0.70
M 10
65
SPH/F 60
60
12.0
0.26
0.89
M 10
50
SPH/F 70
70
14.0
0.24
0.82
M 10
50
SPH/F 80
80
16.0
0.21
0.71
M 10
50
SPH/F 90
90
18.0
0.46
1.60
M 12
45
SPH/F 100
100
20.0
0.44
1.50
M 12
45
SPH/F 115
115
23.0
0.38
1.30
M 12
45
SPH/F 130
130
26.0
0.44
1.50
M 12
45
SPH/F 150
150
30.0
0.55
1.90
M 12
45
SPH/F 170
170
34.0
0.64
2.20
2 x M 12
45
SPH/F 190
190
38.0
0.61
2.10
2 x M 12
45
SPH/F 220
220
44.0
1.39
4.80
2 x M 12
55
SPH/F 250
250
50.0
1.31
4.50
2 x M 12
55
SPH/F 280
280
56.0
1.21
4.20
2 x M 12
55
SPH/F 300
300
60.0
1.16
4.00
2 x M 12
55
SPH/F 320
320
64.0
1.10
3.80
2 x M 12
55
Capacity
Charge current Electrolyte per cell
Terminal
Length of cell
Cell type
C
5
Ah
0.2 C
5
A
Solid
Liquid
per pole
topper nozzle
(Ah)
(A)
(kg)
(l)
(mm)
Standard range:
Compact range:
SPH 16 B
16
3.2
0.06
0.20
M 10
45
SPH 21 B
21
4.2
0.04
0.15
M 10
45
SPH 28 B
28
5.6
0.14
0.47
M 10
45
SPH 36 B
36
7.2
0.11
0.39
M 10
45
SPH 47 B
47
9.4
0.08
0.28
M 10
45
Table A:
