Figure 7.4 After a Week of Normal Charge/Discharge Experiment
c. The battery is very heavy. Use proper method to move and lift the battery, so as to prevent any damage to
human being or the battery terminal. Severe damage to the battery may cause fire.
d. The battery connecting terminal must not be subject to any force, such as the pulling force or twisting
force of the cable, otherwise, the internal connection of the battery may be damaged. Severe damage to
the battery may cause fire.
e. The battery must be installed and stored in a clean, cool and dry environment. Do not install the battery in
a sealed battery chamber or a sealed room. The battery room ventilation must at least meet the
requirement of EN50272-2001. Otherwise, battery bulging, fire or even human injury may be caused.
f. The battery must be installed far away from the heating products (for example transformer), used or
stored far away from any fire source, and must not be burnt or put into fire for heating. Otherwise, battery
leakage, bulging, fire or explosion may be caused.
g. Do not directly connect any conductor between the positive and negative terminals of the battery.
Remove the finger rings, watch, necklace, bracelet and other meta items before operating the battery, and
ensure that the tools (for example wrench) are covered with insulating material. Otherwise, battery
burning, human death/injury or explosion may be caused.
h. Do not disassemble, modify or demolish the battery. Otherwise, battery short circuit, liquid leakage or even
human injury may be caused.
i. Clean the battery enclosure with the wringed wet cloth. To avoid any static or arcing, do not use dry cloth
or duster to clean the battery. Do not use the organic solvent (for example thinner, gasoline, volatile oil) to
clean the battery. Otherwise, the battery enclosure may be cracked. In worst case, fire may be caused.
j. The battery has diluted sulfuric acid. In normal use, the diluted sulfuric acid will be absorbed to the baffle
and polar plate of the battery. However, if the battery is damaged, the acid may leak from the battery.
Therefore, personal protective equipment (for example protective glasses, rubber gloves and apron) must
be used when operating the battery. Otherwise, if the diluted sulfuric acid enters the eyes, blindness may
be caused; if it contacts the skin, the skin may be burnt.
k. The battery may have short circuit, electrolyte dry-up or positive pole erosion failure at the end of its life. If
it is still used under this state, the battery may have thermorunaway, bulging or liquid leakage. Replace the
battery before it becomes this state.
l. Before connecting or disconnecting the battery connection cables, isolate the charging power.
m. Check if the battery has been unexpectedly earthed. If this is the case, remove the earth connection.
Contact with any part of the earthed battery may result in an electric shock.
7 Battery Proprietary and Confidential ©2023 Vertiv Group Corp. 129
Vertiv™ Liebert® APM2 30 to 120 kVA Modular UPS User Manual
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