Briefly about how to charge a car battery

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

Are you on this page? So, you need to learn how to charge a car battery. You sat behind the wheel in the morning, tried to start the engine, and heard silence in response. Familiar situation? Naturally, it became clear that the battery, and therefore you, had problems. Long before the "dead" engine, this was indicated by an indicator on the dashboard.

First you need to check the battery charge. As a rule, its absence is the reason for the "silence" of your engine. The conclusion is simple: it is urgent to charge the battery.

Start by disconnecting the battery, first remove the terminal from the "minus", and then from the "plus", this is a very important point. When deciding how to charge a car battery, let's first touch on battery diagnostics.

First, you need to check the density of the electrolyte using a hydrometer. First you need to unscrew the protective bolts and provide access to the electrolyte. If the battery is fully charged, then its reading will be at the level of 1.28 - 1.30 g/cm3.

Secondly, we mustcheck the electrolyte level, it should be about 10-15 mm above the plates or on the scale on the outside of the battery between "min" and "max" (on a translucent case). If the level is lower, add distilled water. During the entire charging time, the battery must be open so that the liquid comes into contact with air, this is an important point. When deciding how to charge a car battery, it is absolutely not necessary to use the product of local craftsmen, a home-made "charger".

In order to charge the battery, you must have a charger (charger). When connecting, it is necessary to connect the terminals of the charger with the battery according to the marking: "plus" charger with "plus" battery, "minus" charger with "minus" battery, then plug the third wire into the network.

Depending on the state of the battery and its type, the time required to charge the battery varies. On the charger, the indicator needle will show "0" when the battery is fully charged. There are two life situations, consider them:

- if there is an urgent problem and you need to quickly charge the battery in a short period of time, then at maximum current, without removing the battery from the car, charge it for 20 minutes;

- with enough time, after removing the battery, you need to put it on charge for 8-12 hours (usually at night, at home under supervision), the current for charging should be minimal, not more than 5.5 A.

Encounteredwith the question of how to charge a car battery at home, you need to check a few points. If the battery is brought into the room from frost, you need to wait until it warms up to ambient temperature.

Need to worry about technology

If you need to charge a gel battery, it is better to do this with a special charger for gel batteries (due to their specifics), it uses very small charging currents.

Here are quick answers on how to charge your car battery to help you "revive" your vehicle.