Is the battery damaged if it is discharged and recharged for 12 hours?

Introduction Is the battery damaged after being discharged and recharged for 12 hours? The charger fuse may be blown. The reverse current of the reverse load is quite large. In order to protect the charger, there will be.

Is the battery damaged if it is discharged and recharged for 12 hours?

The charger fuse may be blown. The reverse current of the reverse load is quite large. In order to protect the charger, a fuse is installed on the output part for protection. Check the fuse.

Partial short circuit of the quality plate

Theoretically speaking, if it is lower than 9.5 volts, it will not be able to ignite, and if it is lower than 10.5 volts, it will not be easy to ignite. Generally, it cannot be lower than 11.5 volts. It needs 12 volts to be normal after ignition, because the generator starts charging the battery after ignition.

I am a battery specialist. The situation you mentioned is caused by lack of fluid in the battery. Distilled water should be added (remember it should be distilled water and not electrolyte). Also, it depends on the age of your battery. If it is more than 3 years old, it has virtually no valueof repair. If the battery is deformed, you can only replace it with a new one!

Charge with a current of one tenth of the rated capacity until the battery temperature increases significantly and observe if the network boils. If there are still no bubbles, but the battery is still usable, leave it alone for now. Current batteries have a sealed structure and are difficult to replace individually, so maintenance is not recommended.

Nowadays, dry batteries are mainly used. Water batteries are used in large tricycles or boats. It is recommended to replace them with new ones. >

Safety valve Analysis of the cause of the leak

The safety valve plays a sealing role under a certain pressure. When the specified pressure (opening pressure) is exceeded, the safety valve will automatically open to ventuer. ensure battery safety. The main reasons for safety valve leakage are as follows.

Battery repair

a. Too much acid is added and the battery is in a liquid-rich state, which blocks the gas channel for O2 regeneration. As O2 increases, the internal pressure rises, exceeding the opening pressure, and the safety valve opens with an acid mist. If opened several times, the acid mist forms an acidic liquid around the safety valve.

b. The safety valve has poor aging resistance. After being used for a period of time, the rubber of the safety valve will be corroded by O2 and H2SO4 and the elasticity of the safety valve will decrease. , the opening pressure will decrease, and it may even stay open for a long time, causing acid mist and causing leakage.

Battery maintenance

Analysis of the causes of pole terminal leakage

The common method for sealing the pole terminals is: first connect the poles with the lead sleeve on the cover The tubes are welded together and sealed with a layer of epoxy putty. When the battery is installed and used for more than 1A, some battery terminals will leak. When the battery is used for 3-5A, the leakage will be larger and the positive electrode is more serious than the negative electrode.

Battery Maintenance

This is a common problem in household sealed batteries. Through dissection, it was found that the pole terminals were corroded and H2SO4 was flowing along the corrosion channel under the action. internal air pressure. A leak occurs on the surface of the terminal, also called acid creep or leakage.

The cause of terminal corrosion is O2 corrosion inacidic conditions: PbO and PbSO4 produced by corrosion are both porous, and H2SO4 crawls outward along the corrosion holes under the action of internal air pressure and leakage.

Lead-acid battery repair

Relatively speaking, the corrosion rate is relatively slow, so it will take a long period of use before leakage occurs . At the same time, the positive electrode corrodes faster than the negative electrode, so the positive electrode leaks seriously.

Since welding generally uses oxygen-acetylene gas, a layer of PbO forms on the surface of the post during welding. PbO reacts easily with H2SO4, accelerating the corrosion rate and reducing leak time.

Learning repair technology

Batteries installed horizontally in a cabinet with rigid connections are more susceptibles to flee. Due to the gravity of the battery, the cabinet beams are deformed and hard. The connections will stress the terminals. The sealing layer is easy to peel off and is more likely to leak.

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