Exide Technologies GB4007 - Manual (Page 3)

TABLE B
Battery Current (amps)
SLS-710 21.3
SLS-550 16.5
SLS-520 15.6
SLS-500 15.0
SLS-500E 15.0
Float Charge: Charge at temperature compensated
constant voltage between 2.20 and 2.35 vpc. If
temperature exceeds 131 deg F (55 deg C), decrease
voltage to 2.20 vpc.
The maximum charge rate for each battery type is:
SLS-710….180 amps
SLS-550….138 amps
SLS-520….132 amps
SLS-500…..125 amps
SLS-500E…125 amps
Voltage tolerances +/- 1% and current tolerances +/- 0.5
amp.
Chart 1 Two Step Charging
8.0 VENTILATION
Clean all ventilating openings to remove any collection
for dirt or dust that might prevent the free circulation of
air. As explained in Section 1.0, explosive gases can be
produced if abnormal operating conditions exist (e.g.
charger malfunction).
9.0 MAINTENANCE
Because this is an Element battery, there is little to do
regarding maintenance operations. The top of the
battery should be kept clean and dry and may be
washed to remove any accumulated foreign matter. In
the unlikely event of an accidental contamination with
electrolyte or lead, contain the spill and notify your local
GNB representative who is equipped to handle any
environmental concerns. Spill kits can be ordered through
your local sales representative by calling 1-888-563-6300.
Never attempt to add water to the battery – it has been
designed to function without any such additions over its
entire life. Any attempt to remove the vent caps shall void
the warranty.
9.1 Each Shop Visit – Tray Covers Remain in Place
• Check the battery State of Charge (SOC) by
measuring the Open Circuit Voltage (OCV)
with “No Load” attached to the battery. A fully
charged battery will show an OCV of 68.8 volts
per set or 34.4 volts per tray. If the battery is
more then 15% discharged, with OCV less than
67.8 volts per set or 33.9 volts per tray, apply a
“Boost Charge” of 2.35 volts per cell or 75.2 volts
per set until the charge current is reduced to a
value that is equal to 3 amps per 100 Amp-hour
of the C/8 capacity rating.
• Monitor the battery temperature to make sure it
does not exceed 104° F (40° C).
9.2 Annual Health Check – Tray Covers Removed
• Check the SOC by measuring the OCV with “No
Load” attached to the battery per the Shop Visit
instructions (Section 9.1).
• Check all inter-cell connections and terminal
connections to assure a torque reading of 100 in-
lbs. Confirm this torque reading by turning the
torque wrench clockwise only.
Do not re-torque
by first loosing and re-tightening.
• Check the OCV of all cells. It should be 2.15 volts
per cell with “No Load” attached to the battery.
No cell should read lower than 30 millivolts from
the average OCV of all the cells in the battery
system.
• Re-torque the tray bolts to 160 in-lbs.
• Clean all of the terminal connections with
Scotch-Brite® Green and apply Sanchem Inc.
NO-OX-ID® “A” grease to them.
10.0 STORAGE OF SPARE BATTERIES
Spare charged batteries should be given regular good
housekeeping care. A clean, cool, dry place, free from
dust and debris, should be selected for storage space.
If stored at temperatures of 77°F (25°C) or below, the
battery should receive an initial charge (see Section 3.0)
within 3 months and recharged at 3-month intervals
thereafter. Storage at elevated temperatures will result in
accelerated rates of self-discharge. For every 18°F (10°C)
increase above 77°F (25°C), the time interval for initial/
maintenance charging should be halved. Thus, if a battery
were stored at 95°F (35°C), the initial charge should be
performed within 1.5 months and recharged at 1.5-month
intervals thereafter.
Storage beyond these periods without proper charge can
result in excessive sulphation of plates and positive grid
corrosion, which is detrimental to battery performance
and life. Failure to charge accordingly may void the
battery’s warranty.
2
Page 3 Chart
2.18
2.2
2.22
2.24
2.26
2.28
2.3
2.32
2.34
2.36
2.38
2.4
0 10 20 30 40 50 60
V
oltage (volts per cell)
Chart 1: Two Step Charging
FLOAT
CHARGE
(deg C)
Temperature
32 50 68 86 104 122 140
25
77 (deg F)