Ups Battery - Liebert NXC 30kVA User Manual

by the battery manufacturer shall be satisfied. The connections between all the wiring terminals and the batteries shall be
inspected and tightened at least once a year. Otherwise it may cause fire!
2) The battery appearance must be inspected before accepting and using the battery. If there exists any package damage, dirty
battery terminal, terminal erosion, rust, or enclosure crack, deformation or liquid leakage, replace it with a new battery. Otherwise,
battery capacity reduction, electric leakage or fire may be caused.
Battery damaged during handling or transportation
3) The battery is very heavy. Please 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.
4) The battery connecting terminal shall 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.
5) The battery shall 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 shall at least meet the requirement of EN50272-2001. Otherwise, battery
bulging, fire or even human injury may be caused.
6) The battery shall be installed far away from the heating products (e.g. transformer), used or stored far away from any fire
source, and shall not be burnt or put into fire for heating. Otherwise, battery leakage, bulging, fire or explosion may be caused.
7) 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 (e.g., wrench) are covered
with insulating material. Otherwise, battery burning, human death/injury or explosion may be caused.
8) Do not disassemble, modify or demolish the battery. Otherwise, battery short circuit, liquid leakage or even human injury may
be caused.
9) 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 (such as thinner, gasoline, volatile oil) to clean the battery. Otherwise, the battery
enclosure may be cracked. In worst case, fire may be caused.
10) 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 (e.g.,
protective glasses, rubber gloves and apron) must be used when operating the battery. Otherwise, if the diluted sulfuric acid enter
the eyes, blindness may be caused; if it contacts the skin, the skin may be burnt.
11) 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. Please replace the battery before it becomes this state.
12) Before connecting or disconnecting the battery connection cables, please isolate the charging power.
13) 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.

6.3 UPS Battery

The UPS generally adopts valve-regulated battery. At present, 'valve-regulated' means the 'sealed type' or
'maintenance free' mentioned in the past.
The valve-regulated battery is not completely sealed, especially when it is over-charged, there will be gas escape. The
volume of the gas escape is less than the water injection battery. However, during the installation design of the battery,
temperature rise shall be taken into account, and enough room shall be reserved to ensure good ventilation.
Warning: hazardous battery voltage present behind covers
Liebert NXC 30kVA And 40kVA UPS User Manual
Chapter 6 Battery
After a week of normal charge/discharge experiment
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