Huawei iBattery 3.0 User Manual page 75

iBattery 3.0
User Manual
Alarm Name Alarm
Severity
Abnormal Minor
Intern.
Resistance
Single Batt. Major
Laggard
Single Batt. Major
Overtemp.
Single Batt. Critical
terminal off
Issue 07 (2019-12-30)
Possible Cause
 A battery terminal bolt
is not tightened.
 A battery terminal is
not properly
connected to a
connector.

The internal resistance
of a battery is
abnormal.
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.
 A battery terminal
screw is not tightened.
 A battery terminal is
Copyright © Huawei Technologies Co., Ltd.
Solution
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. 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. 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.
1. Check that battery terminal screws are
tightened.
2. Check that battery terminals are properly
7 Troubleshooting
69