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SAFT AMERICA INC.
COMPONENT MAINTENANCE MANUAL
4579
24-31-05
PAGE 105
Jan 30/98
DISCHARGE TIMES
DISCHARGE RATE
(AMPS)
MINIMUM TIME FOR FIRST CELL TO
DISCHARGE TO 1 VOLT
BATTERY WITH
PRIOR SERVICE
FROM STORES OR
AIRCRAFT
NEW BATTERY
10
260.0 MINUTES
270.0 MINUTES
20
130.0 MINUTES
135.0 MINUTES
40
64.5 MINUTES
67.0 MINUTES
45
60.0 MINUTES
60.0 MINUTES
Discharge Times
Figure 103
D.
Residual Discharge
Discharge each cell in the battery to zero volts using one of the first two procedures
that follow.
NOTE
:
It is not necessary to have a rest period between discharge and residual
discharge.
(1)
Continue to discharge the battery. After battery voltage drops to <1.0 V,
connect a 1.0 ohm (3.0 watt minimum) resistor across each cell’s terminals.
Leave the resistor in place for 16 to 24 hours to allow each cell to completely
discharge. The resistors should be fitted with alligator clips to ensure a firm
connection.
(2)
Continue to discharge the battery. After battery voltage drops to <0.5 V dc,
insert a shorting clip between its terminals. Leave these clips on for 16 hours to
allow the cells to completely discharge and the battery to cool.
(3)
Remove the shorting devices and continue with testing per Fig 102.
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