SC
SC
SC
SC Battery
Battery
Battery
Battery and
and
and
and Charging
Charging
Charging
Charging System
System
System
System
- 10 -
Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Test
Test
Test
Test
Fault
Fault
Fault
Fault determination
determination
determination
determination of
of
of
of battery
battery
battery
battery
2. Appearance inspection
Items of Inspection Cause Troubleshooting
Case
Damage
① Battery case crash
②
Incorrect installation
Replace with a new one
Burn
①
Loose connection or poor contact of terminal post
② External short circuit
Replace with a new one
Explosion
①
Internal short circuit
② In the case of low electrolyte level, there will be internal spark.
③
Blocked vent
Replace with a new one
Deformation
① Overcharge
②
Overcurrent charging
③ Blocked vent
Replace with a new one
Battery acid leakage
① Damaged plastic case due to external impact
②
Inversion or too large tilt angle of battery
③ Unfirm heat seal
Replace with a new one
Terminal post melting loss
①
External short circuit
② Poor contact
③
Poor welding
Replace with a new one
3. V oltage inspection
V oltage
When it is above 12.5V , the electric
eye is green
Normal Load test
When it is between 12.4 ～
11V
, the
electric eye is black
Undercharge Boost charge
When it is equal to or under 10.5V
①
Overdischarge ( Black electric )
② Short circuit ( in general, green electric eye )
③ Open circuit
Replace with a new one
Load test
Green area Normal —
Yellow area Undercharge Boost charge
Red area
① Undercharge
② Short circuit or open circuit
Replace with a new one
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