What is the normal charging current for a car battery?

1 Answers
Gracie
07/29/25 9:58pm
The charging current of a car battery is related to its capacity, usually one-tenth of the battery capacity. For example, a battery with a specification of 12V20aH has a normal charging current of 1.5A to 2.5A. Currently, chargers on the market can automatically adjust the output current based on the battery's condition, thereby reducing damage to the battery. Normally, it takes 4 to 5 hours to fully charge the battery. A battery is a type of cell, also known as a storage battery. Its working principle is to convert chemical energy into electrical energy. The commonly referred-to battery is a lead-acid battery, which mainly uses lead and its oxides as electrodes and a sulfuric acid solution as the electrolyte.
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