2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Many car owners, faced for the first time with the problem of discharging a rechargeable car battery and deciding to charge it on their own, ask the following question: "What current should I charge the battery with?". In order to carry out this plan, first of all, it is necessary to have a starter-charger or charger that allows you to convert the current supplied from a conventional 220V outlet into a current that has a much lower voltage - 15V. Measuring voltage parameters of 15V are considered optimal in order to carry out high-quality battery charging without violating its system.
Answering the question of what current to charge the battery, first of all, you need to decide on the choice of the way to charge the battery.
- Constant current method. With this approach, you need to constantly adjust the current strength that is supplied to the charge. For example, let's make a calculation to find out what current to charge a battery of 60 A / h capacity. The current strength is calculated from the ratio of 1:10 of the battery capacity. In this example, it will be equal to 6 amperes. Notit is allowed to supply a current that is higher than 6 Amperes, as this can harm the battery system. A smaller force can be used for a 60 Ah battery, but in this case, the time to fully charge increases, as does the efficiency of the work performed.
How to determine the total charge? As soon as the battery is charged, it will begin to emit gases. This is a sure sign that the battery is fully charged and ready for use. Another sign of a full charge is the stability of the voltage readings for an hour or more. The increase in charge efficiency will be higher the more the current is reduced at the end of the charge. To do this, before the battery is fully charged, it is necessary to gradually reduce the current strength (at a value of 14, 4, a current of 3 Amperes is supplied). This effect increases the charging voltage.
- Constant voltage method. At the same time, voltage regulation is not needed, but the question of what current to charge the battery remains relevant. The battery is connected to a continuous voltage, while the current is mechanically produced in a size equal to the current capacity in the battery, and with the expiration of the charge time, it decreases and may fall to the "0" mark. This technique is mainly used for batteries that have a voltage of 12V. At the same time, the voltage used during charging has indicators up to 15V.
When the battery is fully charged, as a rule, no excess gas is released, soas the charge is up to 95%. Knowing what current to charge a car battery, it is important to choose the right effective regulating chargers for this method.
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