Nortec UL60 - Program 416: Maintenance Pb Battery Vented Commercial

9 Tabular overview of the program procedures Maintenance
© Nortec Electronics 2018 89
9.5.3 Program 416: Maintenance Pb battery vented commercial
16: Pb battery vented commercial
 select Batteryprocessing: 
P4: Maintenance
Enter:
 Nominal voltage
 Rated capacity
Step 1:
The message is displayed:
P416:S1: FILL IN ELECTROLYTE
wait for 20 MINUTES E=continue
The program waits for at maximum of 20 minutes.
Discharging with C
20
until a 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 0.25 C
1
is reached.
Step 3:
I-charge with 0.25 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 0.04 C
1
.
Step 5:
Discharging with C
20
to 1.8 V for each cell. The here detected capacity will be used to ascertain the
effective capacity.
Step 6:
I-charge with 0.25 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 0.04 C
1
.
End of program
Display battery evaluation:
C>70%:BATTERY IS OK
or
C>50%:BATTERY FOR UNCRITICAL USE
or
C<50%:BATTERY WITH RECORD TAKE DISCHARGED BATTERY OUT OF SERVICE
Time monitoring:
Precharge maxium 2 hours, I- and U-charge maximum 8 hours, capacity maximum 1.5 × C