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Common faults and solutions of batteries
The voltage is too low after the battery is fully charged
1. The battery has been stored out of use for a long time and has not been maintained in
accordance with the regulations. Solution: Just charge the battery.
2. The battery has been subjected to a violent collision, characterized by damage to the outer
of the battery case or the smell of electrolyte in the battery pack. Solution: This kind of situation is
generally not within the scope of maintenance. If the maintenance is required, it is necessary to
determine whether there is a problem with the output circuit or the battery itself. First, disassemble
the battery case and check whether the P+/C+ and P-/C- wires or solder joints of the battery pack
are damaged. If any damage, it needs to be replaced. Then use the method of incitement to
determine the smell of the battery. If there is an irritating electrolyte smell, it means that the battery
has leaked. It is necessary to test the voltage of each battery string of the battery. If the voltage of
one string is too different from other groups and is very low, you need to contact the manufacturer
to replace the battery of this string.
3. Insufficient capacity. Solution: Charge and discharge the battery, usually 3-5 times.
After the battery is fully charged (the charger shows full), the voltage is zero or low
1. Battery open circuit. Solution: Disassemble the battery, check whether the circuit is broken,
check whether the solder joints are falling off, and repair the damaged area according to the
situation.
2. The protective plate does not work. Solution: First, confirm whether the protection board
cable is in good contact with the protection board, and observe whether the solder joints fall off. If
there is no abnormality in the above conditions, test the voltage between B+B- and P+P-. If the
voltage difference is large, it means that the protective plate is damaged. The protection board
needs to be tested in detail. If the test fails, the protection board needs to be replaced.
Unstable battery voltage
1. Virtual welding. Solution: Use an internal resistance tester to test the internal resistance of
the battery. If the internal resistance exceeds the specified value, there may be virtual welding
inside the battery, and the battery needs to be disassembled and re-soldered.
2. The protective plate is abnormal. Solution: Replace the protective plate.
3. The terminals or connectors are in poor contact. Solution: replace the terminal or connector.
Can be charged normally but cannot be discharged normally or can be discharged normally
but cannot be charged normally
1.The protective plate is broken. Solution: it needs to replace the protective plate.
Emergency plan
1.
Extreme anomalies that may occur during battery operation:
Users should establish a
good sense of safety precautions during use, strictly prohibit illegal operations, and avoid battery
system abuse (overcharge, overdischarge, short circuit, extrusion, puncture, environmental
