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15问答网 > 我要在车上加装一个副电瓶，使用电瓶隔离器，装点烟器底座用来在熄火和断电后给手机充电，那么问题来了，

我要在车上加装一个副电瓶，使用电瓶隔离器，装点烟器底座用来在熄火和断电后给手机充电，那么问题来了，

2025-03-28 11:34:46

推荐回答（2个）

回答1：

手机充电的电流一般在0.5A左右，保险丝有1A即可，车载充电套件自动降压到5V左右，充电使用时，不需要加其它设备。
如果只是充电，可以省略这个副电瓶，点烟器直接加在电瓶上也不费电。

回答2：

保险丝就行，别的啥也不用

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