There are cases when battery terminals are covered with white or greenish bloom. This oxidation of metals, it is also called electrochemical corrosion. At first, it does not manifest at all, except for a non-aesthetic look, but in the end, such corrosion can negatively affect the contact between the connection terminal and the battery pole. the battery is clean.
We clean the terminals of the car battery from oxidation quickly
We loosen the bolts with a wrench and remove both terminals.
As you can see there is quite a bit of impact.
Sprinkle the battery poles with plenty of ordinary baking soda.
We spill sprinkled places with a small amount of ordinary water. Let's stand a little to react. If necessary, we will fill up more soda.
Again, we spill everything with water, until the reaction products are completely removed.
As you can see, the terminals and poles were quickly and easily cleared even without mechanical impact.
Wipe the terminals, poles and the entire top of the battery dry with a dry cloth.
We clean the terminals and poles in any convenient way to remove possible oxide residues and thereby smoothing the surface.
Treat with a protective spray. You can buy it in car stores.This will prevent further occurrence of the oxide for a long period.
Dress the terminals, tighten the bolts.
The battery connection is OK and ready for further use. This method was based on spilling soda directly on the problematic connection, but there is still a similar method when Soda is dissolved in water and I shed oxides with this solution. If there is a lot of oxide in this case, then in my opinion it is better to use spillage, since it can create a large concentration of soda on the surface, thereby increasing the reaction rate. If there is little bloom, then the solution will be a better choice, since they can easily shed the entire surface of the battery to remove not only oxides, but also residues of spilled electrolyte.
Battery maintenance recommendations
To keep the battery in constant readiness, I recommend wiping the entire surface of the battery with soda solution at least once every six months. This simple procedure will remove from the surface all oxides, spilled electrolyte.Thereby, there will be a low contact resistance in the terminals, and the cleanliness of the surface will minimize the self-discharge caused by pollution.