Tips for charging new batteries

New battery charging
The initial charge of the battery is called initial charge, which has a great impact on the service life and charge capacity of the battery. If the charge is insufficient, the battery charge capacity is not high and the service life is also short; If the battery is overcharged, the electrical performance of the battery is good, but it will also shorten its service life, so the new battery should be charged carefully. The ordinary battery must be initially charged according to the charging specification before use. For dry-charged lead-acid batteries, according to the instructions for use, if they need to be used within the specified two-year storage period, they can be put into use as long as the electrolyte with the specified density is added and stored for 15min without charging. However, if the storage period is more than two years, due to partial oxidation on the electrode plate, in order to improve its charge capacity, it should be recharged before use, and then recharged for 5h-8h.
Supplementary charge
Some drivers often neglect to recharge the in-use battery. Because the battery is not fully charged on the vehicle, it is easy to cause the plate vulcanization; At the same time, the amount of charge and discharge in use is unbalanced. If the discharge is greater than the charge and the battery is in a state of long-term power loss, the battery plate will slowly vulcanize. This kind of chronic vulcanization will reduce the battery charge capacity until it is unable to start, and greatly shorten the service life of the battery. In order to restore the active substances on the battery plate in time, reduce the plate vulcanization, improve the battery charge capacity, and extend its service life, the in-use battery should be regularly recharged.
Overcharge
The battery is often overcharged. Even if the charging current is not large, the electrolyte "boils" for a long time. In addition to the fine particles on the surface of the active substance that are easy to fall off, it will also cause the grid to be excessively oxidized, causing the active substance and the grid to be loose and peeled off.
Polarity reversal
Due to the different materials of the positive and negative plates of the battery, in addition to the active substances, the negative plates are also added with barium sulfate, humic acid, carbon black, rosin and other materials to prevent the contraction and oxidation of the negative plates. In addition, the number of negative plates of each single-cell battery is always more than the number of positive plates, and the negative plate is slightly thinner than the positive plate. If the polarity is not paid attention to during the initial charging or supplementary charging of the battery, it will cause the battery to charge reversely, making the positive and negative poles almost become coarse grain PbSO4, resulting in insufficient charge capacity of the battery, unable to work normally, and even lead to the battery being scrapped. Therefore, pay attention to the polarity when charging, and never reverse the polarity
Density "Better small than large"
Some drivers believe that the higher the density of the electrolyte, the lower the discharge degree of the battery, the higher the terminal voltage of the battery, the greater the charge capacity, and can prevent the battery from freezing in winter. Therefore, when adjusting the density of the electrolyte, not only the original electrolyte density is higher than the specified value, but also when adding distilled water in normal use, they are accustomed to adding some different density of electrolyte, As a result, the density of electrolyte becomes higher and higher. In fact, this is very wrong.
As an important indicator to measure the discharge degree of the battery, the electrolyte density is based on the premise that the original electrolyte density has been determined. Adding different density of electrolyte only means improving the density of the original electrolyte. Even if the measured density of electrolyte is high, it cannot indicate that its discharge degree is low; Increasing the density of electrolyte can increase the terminal voltage and charge capacity of the battery. On the one hand, increasing the density of electrolyte can increase the electromotive force of the battery and increase its terminal voltage and charge capacity, but on the other hand, if the density of electrolyte is too large, the viscosity of electrolyte will increase, the internal resistance will increase, and its permeability will decrease, and on the contrary, the terminal voltage and charge capacity of the battery will decrease, Moreover, too high density of electrolyte will also cause many problems such as plate vulcanization and partition corrosion, which will reduce the service life of the battery.