電瓶正負極和充電器不對應，充電接口處冒了煙，當時盡管及時的拔了下來，但是充電器還是壞了。盡管充電器輸出端有38v左右的電壓，但充電不充電時充電器充電指示燈始終為綠色，而不是應該的紅色，不變色，電瓶也充不上電。請問這是什么原因？能告訴我是什么元件出故障了嗎？充電器電(dian)路上470uf/50V電(dian)容(rong)下面有黃色的膠狀東西（是焊料松香還是電(dian)容(rong)漏液呀？如(ru)何判(pan)斷？）。

　　不(bu)是燒(shao)(shao)壞(huai)電(dian)(dian)瓶(ping)就(jiu)是燒(shao)(shao)壞(huai)充(chong)電(dian)(dian)器，燒(shao)(shao)壞(huai)充(chong)電(dian)(dian)器的幾(ji)率(lv)大(da)，10多(duo)秒的話對電(dian)(dian)瓶(ping)影響不(bu)大(da)，一(yi)般情況(kuang)下電(dian)(dian)瓶(ping)會受到些損(sun)害(hai)，但(dan)不(bu)會燒(shao)(shao)掉。，換個好充(chong)電(dian)(dian)器，充(chong)滿試一(yi)下，如果里程(cheng)沒有(you)明顯的下降就(jiu)沒問題。

　　對電(dian)(dian)(dian)(dian)(dian)瓶(ping)肯(ken)定(ding)有不(bu)利(li)的(de)(de)影響，因為充(chong)電(dian)(dian)(dian)(dian)(dian)接反時會(hui)有很大的(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)流(liu)過(guo)電(dian)(dian)(dian)(dian)(dian)瓶(ping)和，所(suo)以你的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)器燒壞(huai)了，電(dian)(dian)(dian)(dian)(dian)瓶(ping)因為電(dian)(dian)(dian)(dian)(dian)流(liu)太大，會(hui)劇烈發熱使極板澎脹受損，活性物(wu)質脫落，降低蓄電(dian)(dian)(dian)(dian)(dian)量和使用壽(shou)命。由于你接錯時間(jian)不(bu)太長，電(dian)(dian)(dian)(dian)(dian)瓶(ping)可(ke)能(neng)(neng)還(huan)能(neng)(neng)使用一段時間(jian)，但(dan)蓄電(dian)(dian)(dian)(dian)(dian)量肯(ken)定(ding)不(bu)如之前(qian)了。

　　所以充電時千萬不能接反，不過現在有一種有保護功能的充電器，如果接反，它會報警或(huo)自動交換極性(xing)。