The life of an ordinary car battery is generally about two years, and the life of a maintenance-free car battery is double that of an ordinary battery. However, in real life, car batteries are often not used until the design life is scrapped in advance. There are many reasons for battery damage, such as over-discharge, long-term storage without charging, no electrolyte or high specific gravity of the electrolyte, contamination with dirt, etc. Now I have an analysis of some common reasons, I hope that everyone can use it properly. It is helpful to maintain the car battery.
1. The size of the pole pile and the collet do not match. When the installation is too loose, the current is too large during the startup, and the contact surface is in poor contact, so that the pole is easily burned out; the installation is too tight, and the pole is slammed during disassembly and assembly, which easily damages the pole and causes the battery to be scrapped.
2. The fixing is unreliable, and the vehicle generates severe vibration during driving, which causes the rubber seal, the outer casing and the cover to crack.
3. The charging current is too large, causing the active material on the plate to fall off prematurely and shorten the service life of the battery.
4. The starting time is too long, causing the battery to discharge suddenly, causing the plate to bend and the active material to crack.
5. Long-term placement or use in the case of insufficient charging to vulcanize the plates.
6. The surface of the electrolyte is lower than the plate, so that the plate is exposed to the liquid surface and is oxidized by contact with air. During driving, the electrolyte fluctuates up and down and comes into contact with the oxidized portion of the plate, causing the plate to vulcanize.
7. The electrolyte contains impurities, mainly because the distilled water is not pure and the metal container such as copper or iron is used in the preparation of the electrolyte. These impurities form a "small circuit" in the battery, allowing the battery to self-discharge.
8. Wiping and maintenance are not timely. The overflowing electrolyte accumulates on the cover plate for a long time, causing corrosion of the pole pile and the sandwich, generating oxides, and forming a passage on the cover plate, causing self-discharge phenomenon.
9. The new battery will not shorten its service life without initial charging or direct high current charging. The new car battery can be installed and used after the electrolyte is filled and must be charged for the first time with a small current.
10. Ignore the vent hole of the battery. If it is not turned on during the period, the gas generated during use cannot be discharged, and the battery will explode due to excessive internal pressure.
11. After the battery is added with distilled water, it will be placed for a long time without charging, causing the battery to self-discharge or damage the polarity of the battery.
12. The charge capacity of the battery does not match the engine, causing early damage to the plates.
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