Manual

SECTION 3 - MAINTENANCE OF BATTERY MODULES
2.3.1 Inspection
Liberty 1000 Series Front access modules are sealed VRLA valve-regulat-
ed lead acid batteries and never require the addition of water.
WARNING: Never remove the vents as this will degrade the
battery seal and will void the warranty.
2.3.2 Cleaning Modules
Use only a damp cloth to clean modules. Do not use any cleaning
agents, because they could damage the battery cases.
WARNING:
Do not clean modules with a dry cloth since this
could develop a static charge on the plastic containers resulting
in a potential spark.
2.3.3 Cell v
olta
ge variation
It is expected that module voltages will vary throughout the normal life
of the battery. An acceptable variation of +/- 0.05 volts from the nom-
inal cell float v
oltage is satisf
actor
y. As an example a 12 volt module
floating at 2.26 v
olts per cell or 13.56 v
olts for the module may vary
from 13.26 to 13.86 volts measured at 77°F (25°C) and be accept-
able.
2.3.4 Effects of temperature
A lead-acid battery is an electro chemical device. Heat accelerates
chemical activity; cold slows it down. Normal battery operating tem-
perature is 77°F (25°C). Higher than normal temperatures have the
following effects on a lead-acid battery:
• Increases capacity
•
Shortens life
17
LIBERTY SERIES 1000 FAM AND FA BATTERY
WARRANTY INFORMATION
Warranty period Maximum annual
average temperature
2
Years full
8
Years pro-rata 77°F (25°C)
1 Year full
4 Years pro-rata 92°F (33.3°C)
1
⁄2 Y
ear full
2
Years pro-rata 107°F (43.3°C)
3 Months full
1 Year pro-rata 122°F (48.8°C)
TABLE 4