目(mu)前(qian)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)主要是(shi)三段(duan)(duan)(duan)式的，依次為(wei)恒(heng)(heng)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)、恒(heng)(heng)壓(ya)(ya)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)、浮充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)三個階段(duan)(duan)(duan)，俗稱三段(duan)(duan)(duan)式充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)。開始用1.8安(an)培充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)壓(ya)(ya)逐漸(jian)升高(gao)，叫(jiao)恒(heng)(heng)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)；電(dian)(dian)(dian)(dian)壓(ya)(ya)到(dao)(dao)了(le)一(yi)定(ding)值(zhi)叫(jiao)恒(heng)(heng)壓(ya)(ya)，在40伏左(zuo)右，最高(gao)充(chong)(chong)(chong)(chong)(chong)(chong)到(dao)(dao)44伏左(zuo)右，這(zhe)(zhe)個階段(duan)(duan)(duan)恒(heng)(heng)壓(ya)(ya)；最后(hou)一(yi)段(duan)(duan)(duan)，電(dian)(dian)(dian)(dian)壓(ya)(ya)達到(dao)(dao)44伏的時(shi)候開始往下降(jiang)，降(jiang)到(dao)(dao)保(bao)底點(dian)41伏，這(zhe)(zhe)時(shi)從涓(juan)流(liu)(liu)開始充(chong)(chong)(chong)(chong)(chong)(chong)，用100毫安(an)小電(dian)(dian)(dian)(dian)流(liu)(liu)慢慢充(chong)(chong)(chong)(chong)(chong)(chong)，最后(hou)一(yi)段(duan)(duan)(duan)主要是(shi)保(bao)障讓電(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)(chong)(chong)(chong)足，同(tong)時(shi)不讓它過充(chong)(chong)(chong)(chong)(chong)(chong)，因(yin)為(wei)這(zhe)(zhe)時(shi)電(dian)(dian)(dian)(dian)流(liu)(liu)很小。而一(yi)些低價位車為(wei)了(le)降(jiang)低生產(chan)成本，忽略(lve)產(chan)品質量用二(er)段(duan)(duan)(duan)式充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)甚至是(shi)一(yi)段(duan)(duan)(duan)式充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)。二(er)段(duan)(duan)(duan)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)沒有涓(juan)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，容易(yi)過充(chong)(chong)(chong)(chong)(chong)(chong)，把(ba)電(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)(chong)(chong)(chong)成大肚子，導(dao)致電(dian)(dian)(dian)(dian)池(chi)報廢。