Huawei UPS2000-A-6KTTL-S - Battery Maintenance

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Item Expected Result Measures
Charge
current
≤ 2 A (standard model)
≤ 8 A (long backup time
model)
If the charge current is incorrect, contact Huawei
technical support.
Battery string
charge
voltage
Equalized voltage 14.1 V x
Number of batteries
(tolerance ±1%)
Float voltage 13.5 V x
Number of batteries
(tolerance ±1%)
1. If the voltage drop between the battery
string output terminals and the battery input
terminals at the UPS host 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 charging voltage are
correctly set for the UPS host.
3. If the fault persists, contact Huawei technical
support.
Battery
appearance
1.
The battery shell is intact,
without acid leaks,
deformation, or bulges.
2. The battery is free from
dust or dirt.
1. Take photos of any deformed or faulty parts
of batteries.
2. Check and record the charge voltage and
current of the battery string as well as the
voltage of each battery.
3. Check the battery surface temperature.
4. Keep deformed and bulged faulty batteries
still for 30 minutes and then check and
record open-circuit voltage of the faulty
battery.
5. If the fault persists, contact Huawei technical
support.
Battery
management
parameters
Parameters settings of
battery number, battery
capacity, battery charge
voltage, battery charge
current, and EOD setting
values meet requirements.
The capacity value matches
the actual value.
Set parameters correctly.
Battery alarm No battery alarm is
generated.
Identify the cause based on the alarm
information.
Battery
connection
Battery terminals and cables
are in good contact.
Ensure that battery terminals and cables are in
good contact.
Battery
operating
temperature
1. The difference between
temperature reported by
the battery temperature
sensor and the actual
temperature is less than
2ºC.
2. The service temperature
of a working battery does
not exceed 45ºC.
1. Identify the cause of the false temperature
sensor alarm.
2. Identify the cause of the abnormal battery
operating temperature.
3. If the fault persists, contact Huawei technical
support.
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Battery Maintenance