蓄電池充電機最早采用的是變壓器式的充電機，但是由于變壓器式充電機的(de)體積過于大(da)、笨(ben)重、造價低(di)(di)、充(chong)(chong)電(dian)(dian)(dian)效率低(di)(di)，現在基本(ben)上很少采用。目(mu)前使用比較廣泛的(de)是電(dian)(dian)(dian)子(zi)充(chong)(chong)電(dian)(dian)(dian)器。蓄(xu)電(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)機(ji)輸(shu)入交流(liu)(liu)電(dian)(dian)(dian)壓(ya)為220V左右，輸(shu)出端接蓄(xu)電(dian)(dian)(dian)池(chi)，其(qi)充(chong)(chong)電(dian)(dian)(dian)方式：其(qi)一，以大(da)電(dian)(dian)(dian)流(liu)(liu)脈沖(chong)充(chong)(chong)電(dian)(dian)(dian)間歇放(fang)電(dian)(dian)(dian)、補償；其(qi)二，以恒(heng)流(liu)(liu)、恒(heng)壓(ya)浮沖(chong)保持對(dui)被沖(chong)的(de)蓄(xu)電(dian)(dian)(dian)池(chi)提供(gong)穩定的(de)充(chong)(chong)電(dian)(dian)(dian)壓(ya)及電(dian)(dian)(dian)流(liu)(liu)。

充(chong)(chong)電(dian)機具有(you)輸出(chu)短路保護(hu)、輸出(chu)過壓(ya)、過流保護(hu)及過沖保護(hu)功能，保證蓄(xu)電(dian)池(chi)使(shi)用(yong)壽命。由(you)于(yu)近些年來快(kuai)(kuai)速充(chong)(chong)電(dian)技術的(de)(de)(de)發展，使(shi)傳(chuan)統的(de)(de)(de)鉛酸蓄(xu)電(dian)池(chi)快(kuai)(kuai)速充(chong)(chong)電(dian)性(xing)能不好的(de)(de)(de)概念已有(you)了新的(de)(de)(de)改變。實驗證明：多數閥(fa)控(kong)式鉛酸電(dian)池(chi)可(ke)以承受快(kuai)(kuai)速充(chong)(chong)電(dian)，而且(qie)合理的(de)(de)(de)快(kuai)(kuai)速充(chong)(chong)電(dian)對延長電(dian)池(chi)壽命不但無害(hai)而且(qie)有(you)利。