Huawei iBAT 2.0-CIM01C2 User Manual page 71

iBAT 2.0-CIM01C2
User Manual
Alarm Name
Single Batt. Laggard
Single Batt. Overtemp.
Issue 07 (2019-01-02)
Alarm Severity
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
The battery discharge
voltage is below the lower
threshold and the SOH
indicates an abnormal
battery status.
 A battery terminal
screw is not tightened.

A battery terminal is
not properly connected
to a connector.
 The battery
temperature is
abnormal.
9 Maintenance
Solution
1. Compare the charge
voltage of the abnormal
battery and that of the
normal battery. Mark
abnormal batteries.
2. Compare the discharge
voltage of the abnormal
battery and that of the
normal battery. Mark
abnormal batteries.
3. Compare the internal
resistance of the
abnormal battery and that
of the normal battery.
Mark abnormal batteries.
4. Fully charge the battery
string and prepare the
UPS backup power
supply. Then perform a
capacity test to query the
SOH of the battery. If the
SOH is abnormal, replace
the abnormal battery.
1. Check that battery
terminal screws are
tightened.
2. Check that battery
terminals are properly
connected to connectors.
3. Compare the internal
resistance of the
abnormal battery and that
of the normal battery.
Mark abnormal batteries.
4. Prepare the UPS backup
power supply. Then
simulate the scenario of
triggering high
temperature alarms.
During the simulation
process, compare the
temperature of the
abnormal battery and that
of the normal battery. If
the battery temperature is
still abnormal, replace the
abnormal battery.
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