C&D Technologies RS-1826 Liberty Series 1000 FA Battery - Manual (Page 14)

PART 2
CHARGING and OPERATION OF BATTERY
SECTION 1 - CHARGING
CAUTION
Always recharge a battery immediately
after a discharge to avoid degradation of the plates.
2.1.1 General Information and Precautions
To safely charge the Liberty Series 1000 Front Access batteries and
avoid damaging the battery and/or connected equipment, observe
the following:
• Use only direct current for charging. AC ripple current from charger
shall not exceed 5 percent of the 8-hour (Ampere-hour) rating of
the battery.
• Be sure charger is turner off before making electrical connections
between the battery abd system.
• Connect battery positive terminal to charger positive terminal and
battery negative terminal to charger negative terminal. Grounding
battery may be either to positive or negative terminal of the battery.
This will depend upon the system design.
• Be certain that all connections are tight and secured before turning
on the charger.
2.1.2 Initial 1 boost charge
All cells/units are shipped fully charged but will lose some charge in
transit or storage before installation. At the first opportunity, provide an
initial charge. This should be done at least by the date stamped on the
shipping container if batteries are stored in a clean, dry and cool
(between 32°F-77°F [0°C-25°C]) location.
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CAUTION
If the proper polarities are not observed when charging the
battery, the battery or groups of reverse-connected cells will
be irreparably damaged.
CAUTION
Valve-regulated batteries must receive a boost charge if
installation will not occur by the date on the carton or if open
circuit voltage drops to 2.11 Volts per cell. Multiply the open
circuit voltage by the number of cells in a unit to obtain unit
voltage. Use initial/equalize charge voltages as shown in Table
2 or Table 3 for boosting cells at the Initial/Equalize Voltage.