電動自行車，是指以(yi)蓄電(dian)池作為輔(fu)助能源在普通(tong)自(zi)行車(che)的(de)基礎(chu)上(shang)，安裝了電(dian)機(ji)、控制器、蓄(xu)電(dian)池、轉把閘把等(deng)操縱部件和顯示儀表系(xi)統的(de)機(ji)電(dian)一體化的(de)個人交(jiao)通(tong)工(gong)具；電(dian)動自(zi)行車(che)有五大(da)部件組成，即：電(dian)(dian)(dian)(dian)(dian)(dian)機、控制器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)和車架。能夠用于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)動自行車的電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)主要由5種，即鉛酸電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、鎘(ge)鎳電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、鐵(tie)鎳電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、氫鎳電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、鋰二次(ci)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)。目前(qian)市場上65%的電動自行(xing)車選擇的是鉛酸電池，30%選擇的是鎘(ge)鎳電池，5%選擇的是氫鎳電池或其(qi)他電池。現在，電動自行(xing)車不(bu)是一種簡(jian)單的代(dai)步工(gong)具，它早已深深滲透到一(yi)些與市民(min)生活(huo)息(xi)息(xi)相關的商業活(huo)動(dong)中，如快遞、飲用水、瓶裝煤氣(qi)、大米、報(bao)紙、函件等等送貨上門(men)。電動(dong)自(zi)行(xing)車不僅能夠(gou)保(bao)障(zhang)市民(min)生活(huo)便(bian)利，也讓市(shi)民享受(shou)到“高性(xing)價比(bi)”的生活(huo)。

電動車充電一定要遠離易燃物品，充(chong)(chong)電時(shi)間(jian)不宜過(guo)長，充(chong)(chong)電器過(guo)熱容易引發(fa)火患(huan)，充(chong)(chong)電時(shi)應當按照說明書的(de)規定進行充(chong)(chong)電，充(chong)(chong)電時(shi)間(jian)原則上不得超過(guo)10個小時(shi)。充電(dian)時，應將(jiang)充電(dian)器放置(zhi)在比較容(rong)易散熱的地方;如果電(dian)動自(zi)行車的電(dian)瓶質(zhi)量低劣或(huo)長(chang)時間(jian)(jian)使用，充電(dian)器的溫度(du)容(rong)易很高，引發火災(zai)，所以在夜間(jian)(jian)睡眠時間(jian)(jian)時充電(dian)(dian)不可(ke)以掉以輕心。此外(wai)，購(gou)買電(dian)(dian)動車(che)時(shi)，應首選(xuan)鋰電(dian)(dian)瓶(ping)。它容量大、自耗(hao)少(shao)、污染少(shao),其次鉛酸干電(dian)(dian)瓶(ping)，它密(mi)封性好(hao)、不易漏(lou)電(dian)(dian)解(jie)(jie)液,一定要防止電(dian)(dian)解(jie)(jie)液泄漏(lou)造成的污染、腐蝕和傷害。購買電動(dong)車時還(huan)須看清產品說(shuo)明書并按說(shuo)明書操作，還(huan)要選擇與電動(dong)車、充電器、電機型號、規(gui)格相配套的電瓶。