Why is the voltage so high when the battery is repaired?This is the original reason!

If, in principle, the repair flow limit value is relatively small, and there is a duty cycle, such as charging a 12AH battery, the normal battery should not produce a voltage higher than 14V.If the voltage is relatively high, there is an internal resistance involved.And the formation of the battery internal resistance is often the vulcanization.

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Therefore, after discharging a battery that is not charged and stored for a period of time, you will find that at the beginning, the battery voltage will be lower than 10V, the battery is charged with the small current pulse, the battery voltage gradually increases, with the participation of internal resistance, the battery voltage may increase a lot.Of the 12V batteries we repaired, there are up to 20V.With the elimination of sulphization, the battery resistance gradually drops, the battery voltage is gradually restored to 13.6V, and the battery is repaired.

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Therefore, for batteries with more serious vulcanization, and no charging batteries, there is often the battery voltage will gradually rise, rise to very high, and then gradually return to the normal voltage state, the battery is repaired.For batteries that are not very serious, the battery voltage will not rise very high, even without obvious feeling.

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In this way, encounter individual battery voltage rise, patiently wait for the battery voltage to drop.

Battery repair technology

Battery maintenance, no matter which method is taken, must test its effect, to its maintenance life is not about, discharge test is the most direct method, generally 12Ah5A discharge to more than 100 minutes when the user can accept,

Battery repair technology

However, many technologies are immature, and not many in a group can be cured, the battery with good effect is not used for a long time, and the difference of the battery in a group is significantly widened, which is because no difference of the battery was tested at that time, according to the misjudgment. The simple solutions are: 1. The discharge current increases to 7.5-10A to see the difference. two. The battery capacity detector (discharge meter) supported by the software can record the discharge curve for easy judgment.