目(mu)前充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器主要是三段(duan)(duan)式(shi)的(de)，依次為恒(heng)(heng)(heng)流(liu)(liu)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)、恒(heng)(heng)(heng)壓充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)、浮充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)三個(ge)階段(duan)(duan)，俗稱三段(duan)(duan)式(shi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器。開始(shi)用1.8安培充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)壓逐漸升高(gao)，叫恒(heng)(heng)(heng)流(liu)(liu)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)；電(dian)(dian)(dian)(dian)壓到(dao)(dao)了(le)一(yi)定值叫恒(heng)(heng)(heng)壓，在40伏左右(you)，最高(gao)充(chong)(chong)(chong)到(dao)(dao)44伏左右(you)，這(zhe)個(ge)階段(duan)(duan)恒(heng)(heng)(heng)壓；最后一(yi)段(duan)(duan)，電(dian)(dian)(dian)(dian)壓達到(dao)(dao)44伏的(de)時(shi)(shi)候開始(shi)往下降，降到(dao)(dao)保底(di)點41伏，這(zhe)時(shi)(shi)從涓流(liu)(liu)開始(shi)充(chong)(chong)(chong)，用100毫安小電(dian)(dian)(dian)(dian)流(liu)(liu)慢(man)慢(man)充(chong)(chong)(chong)，最后一(yi)段(duan)(duan)主要是保障讓電(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)足，同時(shi)(shi)不讓它(ta)過充(chong)(chong)(chong)，因為這(zhe)時(shi)(shi)電(dian)(dian)(dian)(dian)流(liu)(liu)很小。而一(yi)些低價位車為了(le)降低生(sheng)產(chan)成本，忽略產(chan)品質量用二(er)段(duan)(duan)式(shi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器甚至是一(yi)段(duan)(duan)式(shi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器。二(er)段(duan)(duan)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器沒有涓流(liu)(liu)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，容易過充(chong)(chong)(chong)，把電(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)成大肚(du)子，導致(zhi)電(dian)(dian)(dian)(dian)池報廢。