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，充電器具有廣泛的應用前景(jing)。

       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、鋰離(li)子電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)保護電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)多功能充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)車蓄電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、無人(ren)飛機充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、智能機器(qi)(qi)(qi)(qi)人(ren)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、搬運(yun)機器(qi)(qi)(qi)(qi)人(ren)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，AGV小車充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、經(jing)緯(wei)儀充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)輪(lun)椅充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)工具充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、LED防爆電(dian)(dian)(dian)(dian)(dian)(dian)筒充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，掃地(di)機充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，洗地(di)機充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，割草機充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)玩具充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)等。