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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. Voltage inspection Voltage When it is above 12.5V,the electric Normal Load test When it is between 12.4 ~ 11V, the 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 |