How to charge a car battery

When operating a car, motorists often faced the fact that the battery is discharged. There are two types of charging: charging a constant current and charging with constant voltage. Any of the charging devices uses one of these methods, or their combination. But no matter how you would use you, you need to know and perform some rules.

Charging the car battery should be carried out in well-ventilated rooms, since hydrogen is released at the same time.

If the battery is served, then it is necessary to check the level of the electrolyte, unscrew the lid of the battery cans. The liquid should cover the plates by 1-1.5 cm. Add distilled water if necessary. Refilled covers do not twist back, but only put on top of the holes. So the highlighting hydrogen in the process of charging will be better to go out, and the boiling acid will not be splashing. When charging a non-servant AKB, these actions do not produce, because She is sealed.

Charging the battery is performed by the maximum current in the 1:10 ratio to the battery capacity. If an automatic charger is used, then you should check the compliance of the current output, if not - set the necessary current strength with the regulator. The smaller the charge current, the longer the battery will be charged, but the higher the charging quality and the durability of the battery service.

If the charger without automatic shutdown, the degree of charging of the battery is checked, based on the type of charger. So, the rechargeable battery is charged under the following conditions:

Charging on the principle of DC - at the end of charging, the liquid in the battery begins to be intensively boiled.
Charging a constant voltage - the power of the charging current is gradually reduced to minimum values \u200b\u200bthat do not change within an hour.

Checking the degree of charging is carried out after disconnecting the charger from the battery. Carried out in two ways:

Measuring the density of the liquid using the area, while the density of the fully charged battery is in the range of 1.27-1.3.
Measurement of voltage at battery terminals 12 hours after charging: Voltage should be around 12.66-12.7 V.

The battery discharge can be caused by faults in the car electrical wiring, a loosely closed door or trunk, not turned off by a light bulb, a malfunction in the car charging system or a poorly stretched generator belt. The elimination of these reasons will save time on the maintenance of the AKB.