38
Note: If the discharge at the I
1
rate is not feasible, select a different
rate and criteria from the table below.
Record the cell voltages at the corresponding time indicated in
column 2 in the log book.
13. Discharge the 24 V battery at 0.1*I
1
to 10 V.
14. Remove the temperature assembly from cells (if any), but not its
connector.
15. Carry out functional test on the thermostat in accordance with Task
8.7.
Requirement: thermostat shall switch
Replace the thermostat assembly in accordance with Task 10.4.
16. Fit the thermostat assembly.
17. Recharge the battery using either 17.1, or 17.2 or 17.3
• Adjust the electrolyte level at a current of 0.2*I
1
15 minutes to 10
minutes prior to end of the charge methods, 17.1, 17.2, and 17.3
• Afterwards measure the voltage on each cell prior to the end of
charge at 0.2*I
1.
Requirement: cell voltage shall be ≥ 1.56 V
• Record cells end of charge voltages in the logbook.
ATTENTION:
• Don’t charge the battery with currents higher than I
1
•
If you can’t fully supervise, don’t use method described in 17.3.
17.1 IUI-charge = IUI charge – method (Appendix 1).
• Charge the battery at I
1
until voltage has increased to 1.55V times
number of cells and charge for 2 hours at 0.2*I
1
• After about 1 hour charge, check that battery has reached the
voltage level to switch the charge current to 0.2*I
1
.
17.2 I charge method (Appendix 2).
• Charge the fully discharged battery for seven hours at 0.2*I
1
.
Identify cells for replacement. Refer to Task 10.7.
Discharge current rate Time (min) cell voltage
reading
Voltage requirement
for cells (V)
0.2*I
1
240 ≥1.0
0.4*I
1
120 ≥1.0
0.6*I
1
80 ≥1.0
0.8*I
1
60 ≥1.0
I
1
48 ≥1.0
The document reference is online, please check the correspondence between the online documentation and the printed version.
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