What is the normal charging voltage for a motorcycle?

1 Answers
AdrianLynn
07/29/25 5:09pm
Each battery in a motorcycle has a voltage of 12V. During the charging process, the charging voltage is generally normal between 13.5-14.5V. Here are some relevant details: 1. After the motorcycle starts, the AC voltage generated by the magneto varies depending on the model and the lighting/charging system, typically ranging from over 20 volts to 70-80 volts. After being stabilized by the rectifier, it charges the battery, with the charging voltage at the battery usually between 13.5-14.5 volts. If charging is done via the rectifier installed on the motorcycle, the voltage generally does not exceed 15V. If using a charger, the charging voltage is typically 14V. 2. The motorcycle's charging system is not just composed of a magneto; it also requires a rectifier/voltage regulator to work with the magneto to charge the battery. In practice, voltage instability in motorcycles is mainly directly related to the rectifier/voltage regulator. During the charging process, the charging current should not be too large.
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