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汽車是靠電瓶給啟動電機供電才能夠冷車啟動的，一旦電瓶出現了虧電就會造成汽車無法啟動。這個時候可以直接讓修理店送一個新電瓶過來更換，或者原地用萬能充給電瓶充電，甚至可以直接用另外一輛車給汽車搭電啟動。但是搭電需要掌握正確的方法，否則的話就會出現搭電失敗無法啟動甚至是燒壞兩車電瓶的危險。今天小李就來跟大家講一下怎麼樣給汽車正確搭電，需要注意什麼問題，希望我的講解能夠幫助到大家。
救急搭電 。雖然這樣直接將兩車的電瓶互接也能啟動車輛，但是大多數時候是會失敗的。
正確接法應該是用帶有紅色夾子的那根線，先接被救車輛的正極，然後再將另一頭接救援車輛的電瓶正極。因為被救車輛的電瓶已經沒有電了，先接它的正極相對更安全，即便是另一頭不小心搭短路了也不會出現燒壞電瓶的意外。
然後再用另外一根帶有黑色夾子的線先接被救車輛的車架，另一頭再接救援車輛的負極，也可以直接兩個車都是接車架，因為車架就是車輛的負極。之所以不直接兩車電瓶負極互接，就是為了防止救援車輛的電瓶直接與被救車輛的電瓶並聯，電流直接從救援車輛的電瓶流入被救車輛的電瓶，導致救援車輛的電瓶電壓不夠無法啟動。這就有點像我們去買東西排隊一樣，講究先後順序，如果有人插隊的話就會擾亂秩序了。
完成這個步驟以後並不是就可以直接去啟動被救車輛了，因為我們要考慮到救援車輛的電瓶也使用了一定的年限，也可能出現虧電的情況，如果啟動失敗會造成兩車電瓶電量耗盡，同時無法啟動的尷尬局面。所以我們要先將救援車輛啟動並且給人稍微加點油門，再啟動被救車輛。救援車輛加油門的目的也很簡單，讓發動機轉速更高，車載發電機滿負荷工作會發更多的電。
為了防止新手朋友搭電的時候出錯，我把搭電的正確方法總結成一句話：先接2車電瓶正極，再接兩車的車架，最後依次啟動救援車和被救援車輛。拆搭電線比較簡單，只要注意一根一根來就不要短路就可以了。
想了解更多資訊可查看搭電王網頁 www.8elec.hk
Website: https://www.8elec.hk/
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