C&D Technologies RS-1826 Liberty Series 1000 FA Battery - Manual (Page 9)

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SECTION 2 - STORAGE
1.2.1 Storing Charged Batteries
Store batteries indoors in a cool, dry location between 20°F (-7°C)
and 90°F (32°C) and place the batteries in service within 6 months
after the manufactured date found on each battery module.
NOTE: Batteries which are not placed in service for several months will
self-discharge. Boost charges may be applied to individual units or
preferably, to the entire battery module. Do not let electrolyte freeze.
TABLE 1 - FREEZING TEMPERATURE VS SPECIFIC GRAVITY
Storage limitations
The FAM and FA batteries are warranted against defects in materials or
manufacturing or both for a period
of two years from the date of ship-
ment. To keep the warranty in effect, you must place the units on charge
by the date stamped on the shipping carton when stored at 77°F (25°C).
If storage beyond this time is required or storage temperature is in excess
of 77°F (25°C), monitor battery voltage at monthly intervals, if possible. A
convenient measurement technique is to read the open circuit voltage. If
the open circuit voltage drops by 0.04 volts per cell from the nominal
value, the cell(s) must be given a boost charge at the “Initial/Equalize”
voltage. If the batteries are stored for longer than six months without a
boost charge, apply a boost charge to the batteries for 12-24 hours at
2.33 vpc. If the battery has less than 13.3 volts on float contact C&D
TECHNOLOGIES Technical Services Department for special instructions.
Always complete the record of initial charge and float charge
readings as described in the initial charge section of this manual and
retain the readings in your files for future warranty reference. Clearly
identify your location, the application, C&D model number, the date,
and name of the person who took the readings.
The service life of your battery will depend on its ambient
temperature, frequency and depth of discharge, discharge rate,
charge voltage, and regulation of the battery charger.
1.000 0.0 +32
1.050 -3.3 +26
1.100 -7.7 +18
1.150 -15 +5
1.200 -27 -17
1.250 -52 -61
1.300 -70 -95
1.350 -49 -56
1.400 -36 -33
Celsius
Specific Gravity
at 77°F (25°C)
Freezing Temperature
Fahrenheit