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How should Panasonic battery be checked and handled if it can't be charged?

 Many people have seen Panasonic battery, so do you know how to check and deal with it if it can't be charged
(1) First, check whether the connection of the charging circuit is reliable, check whether the connection is in good contact with the plug, carefully check whether the socket and the plug have "sparking" arcing phenomenon, whether there is line damage and disconnection, etc.
(2) Check whether the charger is damaged and whether the charging parameters meet the requirements.
(3) Finally, check whether there is drying phenomenon inside the battery, that is, the battery defective liquid is serious.
(4) It is also necessary to check whether there is irreversible sulfation in the plate: the plate is irreversible sulfation, and the change of terminal voltage may be measured by overcharge discharge. When charging, the voltage of the battery rises very fast, and some single cell voltages are very high, much higher than normal; when discharging, the voltage drops very fast, and the Panasonic battery has little or no power. The above situation can be used to judge the irreversible sulfation of the battery.
(5) Handling of the above faults: first connect the charging circuit firmly, and replace the charger if it is abnormal. The dry Panasonic battery shall be charged and discharged with pure water or 1.050 sulfuric acid for maintenance. If irreversible sulfation is found, a balanced charge shall be carried out. After the dry battery is charged with liquid, the maintenance and charging should be controlled at the maximum of 1.8A for 10-15 hours, and the voltage of three batteries should be about 13.4v/battery. If the voltage difference between Panasonic batteries is large, discharge them to the termination voltage first, then charge and discharge for maintenance. The battery with irreversible sulfation was charged with 0.05-0.15c2a current for about 20 hours after adding liquid (just the flowing electrolyte), and then discharged with 1.5A current. The discharge termination voltage was 10.5v/battery, repeated for 1-3 times until the irreversible sulfation was eliminated and Panasonic battery capacity returned to normal. Then the flowing electrolyte is pumped out and the cap valve is covered, which can be reused
How to check and deal with it
(1) First, check whether the connection of the charging circuit is reliable, check whether the connection is in good contact with the plug, carefully check whether the socket and the plug have "sparking" arcing phenomenon, whether there is line damage and disconnection, etc.
(2) Check whether the charger is damaged and whether the charging parameters meet the requirements.
(3) Finally, check whether there is drying phenomenon inside the battery, that is, the battery defect liquid is serious.
(4) It is also necessary to check whether there is irreversible sulfation in the plate: the plate is irreversible sulfation, and the change of terminal voltage may be measured by overcharge discharge. When charging, the voltage of the battery rises very fast, and some single cell voltages are very high, much higher than normal; when discharging, the voltage drops very fast, and the Panasonic battery has little or no power. The above situation can be used to judge the irreversible sulfation of the battery.
(5) Handling of the above faults: first connect the charging circuit firmly, and replace the charger if it is abnormal. The dry Panasonic battery shall be charged and discharged with pure water or 1.050 sulfuric acid for maintenance. If irreversible sulfation is found, a balanced charge shall be carried out. After the dry battery is charged with liquid, the maintenance and charging should be controlled at the maximum of 1.8A for 10-15 hours, and the voltage of three batteries should be about 13.4v/battery. If the voltage difference between Panasonic batteries is large, discharge them to the termination voltage first, then charge and discharge for maintenance. The battery with irreversible sulfation was charged with 0.05-0.15c2a current for about 20 hours after adding liquid (just the flowing electrolyte), and then discharged with 1.5A current. The discharge termination voltage was 10.5v/battery, repeated for 1-3 times until the irreversible sulfation was eliminated and Panasonic battery capacity returned to normal. Then the flowing electrolyte is pumped out and the cap valve is covered, which can be reused
Introduction:
(1) First, check whether the connection of the charging circuit is reliable, check whether the connection is in good contact with the plug, carefully check whether the socket and the plug have "sparking" arcing phenomenon, whether there is line damage and disconnection, etc.
(2) Check whether the charger is damaged and whether the charging parameters meet the requirements.
(3) Finally, check whether there is drying phenomenon inside the battery, that is, the battery defect liquid is serious.
(4) It is also necessary to check whether there is irreversible sulfation in the plate: the plate is irreversible sulfation, and the change of terminal voltage may be measured by overcharge discharge. When charging, the voltage of the battery rises very fast, and some single cell voltages are very high, much higher than normal; when discharging, the voltage drops very fast, and the Panasonic battery has little or no power. The above situation can be used to judge the irreversible sulfation of the battery.
(5) Handling of the above faults: first connect the charging circuit firmly, and replace the charger if it is abnormal. The dry Panasonic battery shall be charged and discharged with pure water or 1.050 sulfuric acid for maintenance. If irreversible sulfation is found, a balanced charge shall be carried out. After the dry battery is charged with liquid, the maintenance and charging should be controlled at the maximum of 1.8A for 10-15 hours, and the voltage of three batteries should be about 13.4v/battery. If the voltage difference between Panasonic batteries is large, discharge them to the termination voltage first, then charge and discharge for maintenance. After the battery with irreversible sulfation is recharged with liquid (just the flowing electrolyte), charge it with current of 0.05-0.15c2a for about 20h, then discharge it with current of 1.5A, and the discharge termination voltage is 10.5v/battery, repeat it for 1-3 times until the irreversible is eliminated

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