目(mu)前充(chong)(chong)(chong)電器(qi)主(zhu)要是三(san)(san)段(duan)(duan)(duan)(duan)式的，依次為恒(heng)(heng)(heng)流(liu)充(chong)(chong)(chong)電、恒(heng)(heng)(heng)壓(ya)充(chong)(chong)(chong)電、浮充(chong)(chong)(chong)電三(san)(san)個(ge)階(jie)(jie)段(duan)(duan)(duan)(duan)，俗稱三(san)(san)段(duan)(duan)(duan)(duan)式充(chong)(chong)(chong)電器(qi)。開(kai)(kai)(kai)始用1.8安(an)培充(chong)(chong)(chong)電，電壓(ya)逐漸升高，叫恒(heng)(heng)(heng)流(liu)充(chong)(chong)(chong)電；電壓(ya)到(dao)了一(yi)(yi)定值叫恒(heng)(heng)(heng)壓(ya)，在40伏(fu)左右(you)，最高充(chong)(chong)(chong)到(dao)44伏(fu)左右(you)，這(zhe)個(ge)階(jie)(jie)段(duan)(duan)(duan)(duan)恒(heng)(heng)(heng)壓(ya)；最后一(yi)(yi)段(duan)(duan)(duan)(duan)，電壓(ya)達到(dao)44伏(fu)的時(shi)(shi)候開(kai)(kai)(kai)始往下降，降到(dao)保(bao)底點41伏(fu)，這(zhe)時(shi)(shi)從涓流(liu)開(kai)(kai)(kai)始充(chong)(chong)(chong)，用100毫安(an)小電流(liu)慢慢充(chong)(chong)(chong)，最后一(yi)(yi)段(duan)(duan)(duan)(duan)主(zhu)要是保(bao)障讓(rang)(rang)電池充(chong)(chong)(chong)足，同時(shi)(shi)不讓(rang)(rang)它過充(chong)(chong)(chong)，因(yin)為這(zhe)時(shi)(shi)電流(liu)很小。而一(yi)(yi)些(xie)低(di)價位車為了降低(di)生產成本(ben)，忽(hu)略產品質(zhi)量(liang)用二段(duan)(duan)(duan)(duan)式充(chong)(chong)(chong)電器(qi)甚(shen)至是一(yi)(yi)段(duan)(duan)(duan)(duan)式充(chong)(chong)(chong)電器(qi)。二段(duan)(duan)(duan)(duan)充(chong)(chong)(chong)電器(qi)沒有涓流(liu)充(chong)(chong)(chong)電，容易(yi)過充(chong)(chong)(chong)，把(ba)電池充(chong)(chong)(chong)成大肚(du)子，導致電池報廢。