中國(guo)消費(fei)網(wang)訊 應(ying)(ying)急(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)用途(tu)主(zhu)要是(shi)為(wei)了(le)解決移(yi)動數碼產品的(de)臨(lin)時(shi)電(dian)(dian)(dian)(dian)量不(bu)足問題，其工作(zuo)原理，是(shi)通過鋰(li)電(dian)(dian)(dian)(dian)池(chi)(chi)、太陽能板或者普通AA干電(dian)(dian)(dian)(dian)池(chi)(chi)作(zuo)為(wei)儲電(dian)(dian)(dian)(dian)單(dan)元，經過合適的(de)電(dian)(dian)(dian)(dian)壓轉換后，實(shi)現隨(sui)時(shi)、隨(sui)地、隨(sui)身為(wei)移(yi)動數碼產品供電(dian)(dian)(dian)(dian)或充(chong)(chong)電(dian)(dian)(dian)(dian)。記者在市(shi)場(chang)調查中看到(dao)，常見的(de)應(ying)(ying)急(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)有以(yi)下三類。

一、干電池式

    干電池式應急充電器的工作原理是(shi)，將(jiang)干(gan)電(dian)(dian)(dian)池裝(zhuang)(zhuang)入干(gan)電(dian)(dian)(dian)池供(gong)電(dian)(dian)(dian)裝(zhuang)(zhuang)置后(hou)，先由干(gan)電(dian)(dian)(dian)池為該裝(zhuang)(zhuang)置充電(dian)(dian)(dian)，充滿后(hou)，再由該裝(zhuang)(zhuang)置為數碼設備(bei)供(gong)電(dian)(dian)(dian)。在外出(chu)辦事或(huo)旅(lv)游時(shi)，消費者可(ke)以隨(sui)身攜(xie)帶幾塊5號電(dian)(dian)(dian)池，便于隨(sui)時(shi)為上(shang)述(shu)供(gong)電(dian)(dian)(dian)裝(zhuang)(zhuang)置充電(dian)(dian)(dian)。盡管商(shang)家宣傳稱(cheng)，經過(guo)上(shang)述(shu)供(gong)電(dian)(dian)(dian)裝(zhuang)(zhuang)置充電(dian)(dian)(dian)后(hou)，可(ke)支(zhi)持手機通話兩個(ge)小時(shi)，但實際上(shang)，一(yi)般(ban)能支(zhi)持通話十幾分鐘(zhong)就相當不(bu)錯了。

二、內(nei)置鋰電池式(shi)

 　內置鋰電池式應急充電器又叫移動電源、便攜式充電器。它的(de)工作原理是將(jiang)鋰(li)電池(chi)內置(zhi)在(zai)充電裝(zhuang)置(zhi)內，無需安裝(zhuang)電池(chi)，便可為數碼(ma)設備供電。該充電器(qi)的(de)容量(liang)一(yi)般為800mAH―2000mAH，體積(ji)小巧，便于攜帶(dai)。目前，該充電器(qi)被(bei)廣(guang)泛應用于多種(zhong)數碼(ma)產品上(shang)。

三、太陽能式

    太陽能式充電器是將太陽能轉換為電能后，存儲在蓄電池里，可為多種數碼產品充電。該充電器的特(te)性跟內置鋰電池式充(chong)電器相(xiang)似，但其(qi)對充(chong)電的條(tiao)件(jian)要求較(jiao)高，在強光(guang)(guang)下(xia)不(bu)間斷地充(chong)電(直射太陽能(neng)面(mian)板)約8小(xiao)時(shi)后，方可(ke)充(chong)滿(man)，而隔著玻璃充(chong)電效(xiao)果較(jiao)差(cha)，在弱光(guang)(guang)下(xia)(如燈光(guang)(guang))是(shi)不(bu)能(neng)進行充(chong)電的。