Precautions For Battery Maintenance; Monthly Maintenance - Huawei UPS5000-E-400 kVA User Manual

UPS5000-E-(360 kVA-480 kVA)
User Manual (40 kVA Power Modules)

6.2.1 Precautions for Battery Maintenance

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6.2.2 Monthly Maintenance

Table 6-5 Monthly maintenance
Issue 07 (2020-01-10)
Before battery maintenance, get the tools, such as handles, insulated. Do not place other
objects on the top of batteries.
Never use any organic solvent to clean batteries.
Never try to remove the safety valve or pour anything into batteries.
Never smoke or have an open flame around batteries.
After battery discharge, charge the battery in time to maintain a good service life.
Only professionals are allowed to perform the maintenance tasks.
Item Expected Result
Battery No battery management alarm is
management generated.
alarm
1. The surface is clean and tidy
Battery
without stains.
appearance
2. The battery terminals are
intact.
3. Batteries are free from damage
and cracks.
4. Batteries are free from acid
leakage.
5. Batteries are not deformed or
bulged.
1. The ambient battery
Battery
temperature is 25± 5° C.
operating
temperature
2. The battery operating
temperature is lower than
battery temperature +20° C.
3. Battery charge and discharge
conditions meet the
requirements specified in the
battery specifications.
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Charge voltage Equalized charging voltage:
of battery string
(2.35 V/cell ± 1%) x number of
battery cells
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Float charging voltage: (2.25
V/cell ± 1%) x number of
battery cells
Copyright © Huawei Technologies Co., Ltd.
6 Routine Maintenance
Troubleshooting
Identify the cause of an alarm
based on the alarm information.
If the battery appearance is
abnormal, contact Huawei
technical support.
1. Identify the cause of an
abnormal battery operating
temperature.
2. If the fault persists, contact
Huawei technical support.
1. If the voltage drop between the
battery string output terminals
and the battery input terminals
at the UPS side is greater than
1% of the battery string
voltage, check whether the
cable between the battery string
and the UPS is excessively
long, or the cable diameter is
excessively small.
2. Check whether the equalized
charging voltage and float
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