Inspection and analysis of battery rechargeable failure

1) Inspection of battery charge without advance failure
Be
1 Check if the connection of the charging circuit is reliable, the connection is intact;
Check if the socket of the battery case and the plug has "fire" blocked phenomenon, there is a wireless damage, disconnection
Check the connection within the battery pack, which will also cause the charger to be not charged when the wiring in the battery pack is off.
Tighten the socket and plug-ins, secure the charging circuit connection.
Be
2 Check if the charger is damaged, whether the charging parameter meets the requirements. The charger should be replaced.
Be
3 Check if there is dry phenomenon inside the battery (ie, battery lack of procedure, severe water).
Be
4 Check if the polar is inversely revealed sulfate.
This can be determined by measuring the change in the battery terminal voltage at the time of charge and discharge. If the voltage of the battery is rarely faster when charging, some single-handed voltage is particularly high, the voltage drop is low, and the battery is not stated or electricity. Very few, it can be judged that the battery has an irreversible sulfate.
Be
(2) Treatment of battery charge without advance failure
Be
First, the charging loop is securely connected, and the charger should be replaced when the charger is not normal. When the battery is charged (i.e. no current, the high voltage is displayed), the battery opening can be determined.
Be
If the battery voltage is lower than the normal value, the voltage increases in the time of charging, and the battery is still below the normal value after the battery is placed in 1 hour, and the internal disconnection of the battery can be determined.
Be
If the battery is extremely short (no more than 1 month), it belongs to the quality failure of assembly; if the battery is used for a long time, it is observed that there are too many pots, it is a short circuit caused by the crystallization of impurities; if the bottom Too much flour, it is a chronic short circuit that is in contact with the bottom of the battery.
Be
If the battery is extremely small, the voltage increases is extremely fast, the voltage is raised, the normal value is 2.7V / single-single), the voltage dropped quickly when discharged, dropped below 1.8V / single And when the battery is charged, the gas is earlier, and the internal heat is generated, and the battery polar plate sulfate can be determined by this phenomenon.
Be
After the non-reversible sulfate, the battery is used, and the flow electrolytic solution is just shown. The pulse current of 0.05c to 0.15c is applied for about 20 hours, and then discharged at 1.5a current, the discharge termination voltage is 10.5 V of each single block. The battery capacity returned to normal until it was eliminated until it was eliminated. Then extract the flow electrolyte, cover the safety valve, panel (cover), etc., can be reused.
Be
Additional distilled water or density is 1.050g / ㎝ for drying batteries? The dilute sulfuric acid is maintained and discharged, and the battery capacity is restored. The maximum current should be controlled when the drying battery is supplied, and the battery should be controlled at 1.8A (12V / 12AH battery), the charging time is 10 to 15 h, and the voltage of each battery is above 13.4 V after charging. If the voltage between the batteries is large, more than 0.3V should be discharged to the termination voltage and then maintain the maintenance charge and discharge.
Be
If the voltage at that time is normal after the battery is charged, the power is normal, and the main reason is that the main reason is that the electrolyte is too high or the electrolyte is not pure.
Be

If there is a red, yellow and the bottom of the bottom of the battery is too large, due to the excessive time of the high current charging time or the lack of water.


Article from: http://www.brcpower.com/  Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery