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Why Battaries Fail?

Added on:9/17/2008 11:57:09 AM
In Car Maintainance Tips
 Rated by 2 users

Here are some of the most common causes of premature battery failure:

Overcharging: Yes, your battery needs to be charged, but overcharging can be disastrous. The positive plate grids and separators get corroded, resulting in a short circuit and a loss in capacity.

Undercharging: Undercharging isn’t any better. This causes buckling of the plates. Severely buckled plates will perforate the separator, leading to a short circuit.

Lack of usage: If you don’t use your vehicel for, say, a month, chances are that your battery will get run down, due to self-discharge.

Lack of water: If you forget to top up with water, the electrolyte becomes highly concentrated. This leads to the disintegration of the separators and permanent sulphation of the plates.

Use of impure water:
Impurities like iron and sulphur attack the plates and separators, resulting in sulphation. Now you know why they insist on distilled water for topping up.


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