Manual
• Increases internal discharge or local action losses
• Lowers cell voltage for a given charge current
• Raises charging current for a given charge voltage
• Increases the rate of dry-out of electrolyte
Lower than normal temperatures have the opposite effect and
reduce capacity. In general, at proper float voltage, a battery in a
cool location will last longer than one in a warm location.
Note: No temperature correction is required when operating at
77°F +/- 10°F, (25°C +/- 5.5°C). The following correction
factors apply for range not exceeding +/- 30°F from
nominal. For further assistance with temperature correction
factors, contact C&D TECHNOLOGIES.
If the operating temperature is other than 77°F (25°C), it is recom-
mended that the float voltage be changed as follows:
For temperatures other than 77°F (25°C), correct float voltage by
2 mV per degree F (3.6 mV per degree C):
• Add 2 mV (0.002 Volts) per deg
ree F (3.6 mV per degree C)
below 77°F (25°C)
• Subtract 2 mV (0.002 Volts) per degree F (3.6 mV per degree C)
above 77
°F (25°C)
Note: Temperature compensation will materially improve battery
service lif
e when pro
vided.
2.3.5 Record keeping
As a minimum annual measurements of module voltage should be
taken and recorded. On occasion, if a long discharge has been
experienced, completely recharge the battery and take a set of
v
oltage readings recording them f
or future ref
erence if the readings
are satisf
actor
y
.
Provide remedial action or an equalize charge if
necessary.
Do not discharge a battery below the design final
voltage. Remedial action may be required if the battery was
discharged below its final design voltage. Very deep discharges can,
without an immediate recharge, completely deplete the electrolyte and
cause h
ydr
ation.
F
ailure to maintain records may void the warranty.
2.3.6 Connection maintenance
Check the torque of bolted connections annually. Refer to table 1 for
initial torque v
alues
.
The same v
alue ma
y be used for re-torque.
Examine the connections f
or cleanliness and indicate an
y required
action on y
our records.
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