中(zhong)國(guo)消費網訊 應急(ji)充電(dian)(dian)器(qi)的(de)(de)用途(tu)主要是(shi)為了解(jie)決移動數碼產(chan)品(pin)的(de)(de)臨時電(dian)(dian)量不足問(wen)題(ti)，其工作原理，是(shi)通過(guo)(guo)鋰(li)電(dian)(dian)池(chi)、太(tai)陽(yang)能板或(huo)者(zhe)普通AA干(gan)電(dian)(dian)池(chi)作為儲電(dian)(dian)單元，經過(guo)(guo)合適的(de)(de)電(dian)(dian)壓轉換(huan)后，實現隨時、隨地、隨身為移動數碼產(chan)品(pin)供電(dian)(dian)或(huo)充電(dian)(dian)。記者(zhe)在市場(chang)調(diao)查中(zhong)看(kan)到，常見(jian)的(de)(de)應急(ji)充電(dian)(dian)器(qi)有(you)以下三類。

一、干電池式

    干電池式應急充電器的工作原理(li)是，將(jiang)干電(dian)(dian)池裝(zhuang)(zhuang)入(ru)干電(dian)(dian)池供電(dian)(dian)裝(zhuang)(zhuang)置(zhi)后，先(xian)由(you)干電(dian)(dian)池為該裝(zhuang)(zhuang)置(zhi)充(chong)電(dian)(dian)，充(chong)滿后，再由(you)該裝(zhuang)(zhuang)置(zhi)為數碼設(she)備供電(dian)(dian)。在外出辦(ban)事或旅游時，消(xiao)費者可以(yi)隨(sui)身攜帶幾塊5號電(dian)(dian)池，便于隨(sui)時為上(shang)述(shu)供電(dian)(dian)裝(zhuang)(zhuang)置(zhi)充(chong)電(dian)(dian)。盡(jin)管商家(jia)宣傳(chuan)稱，經過(guo)上(shang)述(shu)供電(dian)(dian)裝(zhuang)(zhuang)置(zhi)充(chong)電(dian)(dian)后，可支(zhi)持(chi)(chi)手機通(tong)話兩個小(xiao)時，但實(shi)際上(shang)，一(yi)般能支(zhi)持(chi)(chi)通(tong)話十幾分鐘就(jiu)相當不錯了。

二、內置鋰電池式

 　內置鋰電池式應急充電器又叫移動電源、便攜式充電器。它的工作原理是將(jiang)鋰電(dian)(dian)池內置在充(chong)電(dian)(dian)裝(zhuang)置內，無需安裝(zhuang)電(dian)(dian)池，便(bian)可為數碼設備(bei)供電(dian)(dian)。該充(chong)電(dian)(dian)器(qi)的容量一般為800mAH―2000mAH，體積小(xiao)巧，便(bian)于攜帶。目前，該充(chong)電(dian)(dian)器(qi)被廣(guang)泛應用于多種數碼產品(pin)上。

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(de)特性跟內置鋰電池式充(chong)(chong)(chong)電器相似，但其(qi)對充(chong)(chong)(chong)電的(de)條件要求較高，在(zai)(zai)強(qiang)光下不間斷地充(chong)(chong)(chong)電(直射太陽(yang)能面板)約8小時(shi)后，方可充(chong)(chong)(chong)滿，而隔著玻璃充(chong)(chong)(chong)電效果較差，在(zai)(zai)弱光下(如燈(deng)光)是不能進行充(chong)(chong)(chong)電的(de)。