9.5.2 Program 411: Maintenance Pb battery sealed commercial
11: Pb battery sealed commercial
select Batteryprocessing:
P4: Maintenance
Enter:
Nominal voltage
Rated capacity
Step 1:
Discharging with C
10
until the voltage of 1.8 V is reached.
Step 2:
In case battery voltage is below 2.15 V × number of cells:
Precharge with 2.4 V × number of cells until charging current of 0.36 C
1
is reached.
Step 3:
I-charge with 0.36 C
1
until charging voltage of 2.4 V × number of cells is reached.
Step 4:
U-charge with 2.4 V × number of cells until charging current is decreased to 0.02 C
1
.
Step 5:
Discharging with C
10
to 1.8 V for each cell. The here detected capacity will be used to ascertain the
effective capacity.
Step 6:
I-charge with 0.36 C
1
until the charging voltage of 2.4 V × number of cells is reached.
Step 7:
U-charge with 2.4 V × number of cells until the charging current is decreased to 0.02 C
1
.
End of program
Display battery evaluation:
C>80%:BATTERY is OK
or
C>60%:BATTERY FOR UNCRITICAL USE
or
C<60%:BATTERY
WITH RECORD TAKE DISCHARGED BATTERY OUT OF SERVICE
Time monitoring:
Precharge maximum 2 hours, I- and U-Charge maximum 8 hours, capacity maximum 1.5 × C
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