What to do when the lead-acid battery is undercharged?
by:Vglory 2021-03-02
In daily life, due to business trips or travel, electric vehicles are not for a long time, resulting in starvation of electric vehicle batteries. So, how can I correct this situation? The Haobo repairman will answer you! Let’s take a look at how the battery works first. They convert chemical energy into electrical energy. When the lead-acid battery is insufficiently charged, the lead sulfate in the Yin-Yang board cannot be completely converted into spongy lead and lead oxide. If it is not charged for a long time, lead sulfate crystals will be formed, causing the lead-acid battery in the battery to suddenly sulfide . If after the battery plate is vulcanized, the oxygen present in the anode is greater than the adsorption capacity of the cathode, and the internal pressure of the new battery will cause the gas to overflow, the electrolyte will be reduced, and the active material may be softened or decreased, and the battery life will be greatly shortened. Regarding the current hunger of the battery, we can look at three conditions. 1. Light curing: Equalizing charge can carry out general activation charge (ie, equalizing charge) to the battery, generally lasting one to two days, then it can return to normal. 2. Heavy vulcanization: Hydrotherapy charge and discharge, it needs to be charged and discharged by hydrotherapy to return to normal. The specific methods are as follows: First, the battery is supplemented with pure water or dilute sulfuric acid with a density of 1.05 g/cm3 in a rich liquid state, then its current charge is about 20 hours 0.05--0.018c2a, the flowing liquid is discharged, and then the capacity experiment. Repeat this step until the battery capacity is restored. 3. Severe vulcanization: If the battery is severely vulcanized using the corrector, the commonly used marking method is no longer effective. The high-resistance marking instrument can correct the forward voltage to more than 10V, and then recharge, there is a certain possibility to activate the battery from the beginning. Finally, Haibo teaches us a simple operation method, that is to use a low-voltage charger to charge the electric vehicle, and then use the original charger to activate the battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to use and maintain the battery correctly?
We are here to help you! If you close the chatbox, you will automatically receive a response from us via email. Please be sure to leave your contact details so that we can better assist