充電器是采用電力電子半導體器件，將電壓和頻率固定不變的交流電變換為直流電的一種靜止變流裝置。在以蓄電池為工作電源或備用電源的用電場合，充電器具有廣泛的(de)應用前景。

       充電器有很多，如鉛酸蓄電池充電器、閥控密封鉛酸蓄電池的測試與監測、鎘鎳電池充電器、鎳氫電池充電器、鋰離子電池充電器、便攜式電子設備鋰離子電池充電器、鋰(li)離子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)保護電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路多(duo)功(gong)能充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)車(che)蓄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、無(wu)人(ren)飛機(ji)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、智能機(ji)器(qi)(qi)(qi)(qi)人(ren)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、搬運機(ji)器(qi)(qi)(qi)(qi)人(ren)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，AGV小車(che)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、經(jing)緯儀充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)輪(lun)椅充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)工具(ju)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、LED防爆電(dian)(dian)(dian)(dian)(dian)(dian)(dian)筒充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，掃(sao)地(di)機(ji)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，洗地(di)機(ji)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，割草機(ji)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)玩具(ju)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)等。