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充电器12v2a和9v2.5a有什么区别

2025-03-14 22:42:26

推荐回答（3个）

回答1：

12v2a的是将我们家庭用的220v转换为12v2a的输出电压和电流，然后用于给手机充电，9v2.5a就是转换后输出的是9v2.5a

回答2：

前者是12伏2安，后者是9伏2.5安。后者比前者的电压小3伏而电流却大0.5安。两者不能代用。

回答3：

这不就是两个电压和电流都不相同吗

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