taitcw 发表于 2013-6-25 22:24 Are you using aftermarket alarm? That might not handle the reverse polarity? Once that go, may stop ...
maidouwuai 发表于 2013-6-26 12:37 换了个旧电池上去,发现通电正常。再换上本来的电池,也正常了。现在电池在充电,什么东西都没有烧 ...
J_chn 发表于 2013-6-26 13:00 楼主虚惊一场啊