Method for repairing rich liquid lead-acid battery such as electric tricycle, motorcycle and automobile

The difference between a rich liquid battery and a lean liquid battery is the presence or absence of a free electrolyte. The former has a free liquid, such as a car battery, a motorcycle battery, an electric tricycle battery, etc., the latter does not, such as an electric bicycle battery, 17- 20 ampere electric motorcycle batteries. They are somewhat different in the repair method. However, the battery is basically the same. The specific operation is as follows:

(1) Dosing, the liquid for repairing the rich liquid battery is different from the poor liquid battery. When preparing, the concentrate should be diluted into a repair liquid, and then the repair liquid plus analytical pure concentrated sulfuric acid is used to prepare the specific gravity. 1:1.28---1.31 electrolyte spare.

(2) Adding liquid, for the rich liquid battery, the amount of liquid added is much larger than that of the lean liquid type, so it should be determined according to the condition of the battery itself. Generally speaking, the rich liquid battery is marked with a certain scale. When adding liquid, the liquid level should not exceed the limit. If it is not clear, it will be submerged. In order to control the cost, it is not recommended to completely change the liquid, or replace the original liquid. If the original battery is short, it should be Directly make up. If not missing, you should replace about 100 ml / grid.

For some batteries that can not open the battery cover maintenance-free battery, can not change the liquid, and the battery inside the battery has liquid, can be directly repaired.

(3) Repair, use X-6B type X-7B. Adjust the duty cycle to the corresponding position, ie 65AH, adjust to the middle 120AH battery to adjust to the maximum, repair current control at 6--8A repair time according to battery capacity However, if the battery capacity is C and the repair current is I, the repair time is T; the formula is T=C/I×140%---160%. The battery battery should also observe the battery voltage and temperature during repair. (Except for high internal resistance battery) When the voltage reaches 16V or above, and the feeling of heat is generated, stop repairing. Other batteries observe the change of electrolyte. If the appearance of the electrolyte changes to wash water, the repair is over.

(4) Allow the repaired battery to stand for 30 minutes. Measure the battery voltage and the specific gravity of the electrolyte. If the battery voltage is above 12.8V and the specific gravity of the electrolyte is 1:1.28---1:1.3, it can be used. If this standard is not met, the corresponding adjustment can be made.

(5) Notes

1. When preparing the electrolyte, pay attention to safety, do not pour water into sulfuric acid;

2. The water used in the preparation must be diluted after the repair solution, not the concentrate;

3. If the repair time reaches the standard time, the voltage can not reach 15V (when non-voltage), the battery should be a short-circuit battery;

4. After the repair is completed, the electrolyte concentration reaches the required formula exceeding 1:1.31, and the battery voltage of less than 12.8V can also be regarded as a short-circuit battery;

5. Before the repair, the discharge is discharged with the 10SF of the APSF12-4 type discharge machine. When the battery load voltage drops to 10.5V or less, the battery load voltage drops rapidly to a relatively stable state, and can be repaired;

6. For the car battery, after the repair, it should be allowed to stand for 2-3 days, measure the battery voltage, should be kept above 12.3V, and can be used.