電動自行車，是(shi)指(zhi)以蓄電池作為輔助能源在普通(tong)自行車的(de)基礎上(shang)，安裝了電(dian)機、控(kong)制器、蓄(xu)電(dian)池、轉把閘把等操縱部件和顯示儀表系統(tong)的(de)機電(dian)一(yi)體化的(de)個(ge)人交(jiao)通(tong)工具；電(dian)動自行車有五大部件組成，即：電(dian)(dian)(dian)機、控制器(qi)(qi)、電(dian)(dian)(dian)池、充電(dian)(dian)(dian)器(qi)(qi)和(he)車架。能夠用(yong)于電(dian)(dian)(dian)動自行車的電(dian)(dian)(dian)池主(zhu)要由5種，即鉛酸(suan)電(dian)(dian)(dian)池、鎘鎳電(dian)(dian)(dian)池、鐵(tie)鎳電(dian)(dian)(dian)池、氫(qing)鎳電(dian)(dian)(dian)池、鋰二次電(dian)(dian)(dian)池。目(mu)前市場上65%的電(dian)動自行(xing)(xing)車選(xuan)(xuan)擇的是(shi)鉛酸電(dian)池，30%選(xuan)(xuan)擇的是(shi)鎘鎳(nie)電(dian)池，5%選(xuan)(xuan)擇的是(shi)氫(qing)鎳(nie)電(dian)池或其他電(dian)池。現在，電(dian)動自行(xing)(xing)車不是(shi)一種簡單的代步工具，它早(zao)已深(shen)深(shen)滲透到一些與市民(min)生活息息相關的商業(ye)活動(dong)中，如(ru)快遞、飲用水(shui)、瓶裝煤氣、大(da)米、報(bao)紙、函件(jian)等等送貨上門。電動(dong)自(zi)行(xing)車不僅能夠保(bao)障市民(min)生(sheng)活(huo)(huo)便利，也讓市民(min)享受到“高(gao)性價比”的(de)生(sheng)活(huo)(huo)。

電動車充電一定要遠離易燃物品，充(chong)(chong)電(dian)時(shi)間不(bu)宜(yi)過(guo)長，充(chong)(chong)電(dian)器(qi)過(guo)熱容易引發火患(huan)，充(chong)(chong)電(dian)時(shi)應(ying)當按照(zhao)說明書的規定進(jin)行充(chong)(chong)電(dian)，充(chong)(chong)電(dian)時(shi)間原則上不(bu)得超過(guo)10個小(xiao)時(shi)。充(chong)電(dian)時(shi)(shi)，應將(jiang)充(chong)電(dian)器(qi)放置在比(bi)較(jiao)容(rong)易散熱的地方;如果(guo)電(dian)動自行車的電(dian)瓶(ping)質量低劣或長時(shi)(shi)間(jian)使用，充(chong)電(dian)器(qi)的溫度容(rong)易很高，引發(fa)火災，所以在夜間(jian)睡(shui)眠時(shi)(shi)間(jian)時(shi)(shi)充(chong)電(dian)不可以(yi)掉以(yi)輕心(xin)。此外，購買(mai)電(dian)動車時，應首(shou)選鋰電(dian)瓶(ping)。它(ta)容(rong)量大、自耗少、污染少,其次鉛(qian)酸干(gan)電(dian)瓶(ping)，它(ta)密封性好、不易漏電(dian)解(jie)液,一定要防止電(dian)解(jie)液泄漏造成的污染、腐(fu)蝕和傷害(hai)。購買電(dian)動車時還須看清產品說明書并按說明書操作，還要(yao)選擇與(yu)電(dian)動車、充電(dian)器、電(dian)機型(xing)號(hao)、規格相(xiang)配套的電瓶。