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Method For Repairing Lead-acid Battery

Hundred Battery Industry Co.,Ltd | Updated: Nov 27, 2018

Method for repairing lead-acid battery

Lead-acid batteries will have some minor damage during normal use. At this time, we can take some temporary measures to repair the lead-acid battery. Conditional can be completely repaired! Today we will briefly introduce the repair methods of several lead-acid batteries.


1, lead-acid battery pole ablation, fracture


When the lead-acid battery pole is ablated and broken, it can be repaired by the method of planting silk. Firstly, the damaged pole pile is cut flat from the root, and a hole of 5 mm and a depth of 15 mm is drilled in the center of the section, and a hexagonal screw of m6×30 is screwed. Place the bell tube made of iron sheet on the pole pile, pour the lead water heated and melted, and then remove the bell tube after cooling.


2, lead-acid battery casing, cover crack


If it is found to be timely on the way, you should first stop the leak. Pour the battery to the non-leak side, wipe the leaking electrolyte, dig some sealing material on the battery cover, and make up the leak after heating on the exhaust pipe. If it is a long strip crack, use a hacksaw to saw the v-groove and then make up. For small cracks, it can be bonded with an adhesive. The method is to first locally heat the crack, and after being softened, cut into a v-shaped small groove with a knife along the crack, and then put the prepared resin mortar into the area to be repaired, and then paste it with paper, and then put it indoors and harden it. be usable.


3, lead-acid battery plate vulcanization


The lead-acid battery plate is vulcanized, mostly due to the long-term discharge or semi-discharge of the battery, and the formation of a coarse-grained lead sulfate on the plate. If the vulcanization is not serious, the active material can be recovered by a small current charging for a long time. The operation method is as follows: first discharge the battery at a discharge rate of 20 h, pour out all the electrolyte, rinse it with distilled water several times, and then inject distilled water. To standard liquid level. The charging current is charged with the charging current of the second stage of the initial charging, and the density of the electrolyte is measured at any time, and the charging is stopped when the density is increased to 1.15 g/cm3. Then pour out all the electrolyte in each cell, then inject distilled water and continue charging. This is repeated several times until the density of the electrolyte no longer increases. Finally, discharge is performed once and then fully charged to adjust the electrolyte density to the desired value. After desulfurization and charging, the capacity of the battery should be restored to more than 80% of the rated capacity. Otherwise, it should be done several times for charging and discharging.


4, the active material on the plate of the lead-acid battery falls off


When the active material of the lead-acid battery is not peeled off, the precipitate can be removed and used.


5, the sealant of lead-acid battery is broken


When the sealant of the lead-acid battery is broken, if the crack is small, it can be ironed by a hot soldering iron. If the crack is large and the electrolyte leakage is serious, it should be removed and re-cast. In order to make the sealing material and the casing reliably combined, the pouring place should be scrubbed with acid and water to remove acid.


6, lead-acid battery disconnection


If a single cell of a lead-acid battery is disconnected, it can be temporarily used by a single wire that is thick enough to cross the open circuit.


7, lead-acid battery plate short circuit


This phenomenon of short-circuiting of lead-acid battery plates is often caused by damage to the separator or too much deposit at the bottom. If the partition is damaged, the battery should be disassembled and the partition replaced. If only one of the compartments is damaged, the single-plate set can be removed for repair. If there is too much deposit, the electrolyte should be poured out, washed repeatedly with distilled water and then recharged.

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