數(shu)碼相(xiang)機(ji)的(de)(de)(de)(de)迅速普(pu)及在無形中也帶動了鎳氫充(chong)(chong)電電池(chi)(chi)的(de)(de)(de)(de)高速發展。由于數(shu)碼相(xiang)機(ji)的(de)(de)(de)(de)工作電流(liu)普(pu)遍較大(da)，也比較耗電，普(pu)通的(de)(de)(de)(de)堿性電池(chi)(chi)已經難以(yi)長(chang)時間(jian)勝任數(shu)碼相(xiang)機(ji)的(de)(de)(de)(de)動力之源。而(er)鎳氫充(chong)(chong)電電池(chi)(chi)不(bu)但(dan)容量較大(da)，還能(neng)提供較大(da)的(de)(de)(de)(de)工作電流(liu)，又能(neng)重復使(shi)用且環(huan)保，自然(ran)而(er)然(ran)地(di)成為(wei)了大(da)部(bu)分數(shu)碼相(xiang)機(ji)玩家首選(xuan)的(de)(de)(de)(de)能(neng)源。

　　綜觀鎳氫電池市場，與原裝充電器搭配銷售的套裝電池工作穩定，但價格較高，因此不少玩家都把目光瞄準了價格相對較低的零售電池或價格更為便宜的工業包裝電池--這些電池都沒有充電器搭配銷售。另外，一部分玩家電池使用量較大，一個充電器已經不能滿足日常需求，所以另行購買電池充電器是必要的。因而如何去選擇讓自己滿意的鎳氫電池充電器便成了重要的事情。

　　劣(lie)質(zhi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)危(wei)(wei)害(hai)(hai)： 一(yi)個充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)價格一(yi)般都在幾十元(yuan)到數百元(yuan)之間，比(bi)起數碼(ma)相機的(de)(de)(de)(de)價格來(lai)說真是顯得(de)有些(xie)微(wei)不(bu)(bu)足(zu)道。但這個小(xiao)小(xiao)的(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)如果質(zhi)量不(bu)(bu)過(guo)關(guan)的(de)(de)(de)(de)話，給用戶帶來(lai)的(de)(de)(de)(de)危(wei)(wei)害(hai)(hai)卻不(bu)(bu)小(xiao)。首先(xian)，劣(lie)質(zhi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)由(you)于(yu)配件(jian)質(zhi)量不(bu)(bu)過(guo)關(guan)或(huo)電(dian)(dian)(dian)(dian)(dian)氣性(xing)能不(bu)(bu)良，自身容易(yi)出現短路、過(guo)熱燒毀(hui)等故(gu)障(zhang)，輕則(ze)讓用戶損失(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，重(zhong)則(ze)會(hui)(hui)引(yin)起各種(zhong)災難性(xing)的(de)(de)(de)(de)危(wei)(wei)害(hai)(hai)如火(huo)災等；其次，劣(lie)質(zhi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)由(you)于(yu)輸出電(dian)(dian)(dian)(dian)(dian)流不(bu)(bu)穩定(ding)或(huo)不(bu)(bu)符(fu)合規格，會(hui)(hui)引(yin)起電(dian)(dian)(dian)(dian)(dian)池過(guo)熱、充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)不(bu)(bu)完(wan)全等故(gu)障(zhang)，輕則(ze)影(ying)響使用，重(zhong)則(ze)會(hui)(hui)引(yin)起電(dian)(dian)(dian)(dian)(dian)池爆炸(zha)等危(wei)(wei)險(xian)。由(you)此看來(lai)，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)質(zhi)量的(de)(de)(de)(de)好(hao)(hao)(hao)壞的(de)(de)(de)(de)確要(yao)引(yin)起消費者的(de)(de)(de)(de)注意。作一(yi)個形象的(de)(de)(de)(de)比(bi)喻，電(dian)(dian)(dian)(dian)(dian)池好(hao)(hao)(hao)比(bi)戰場上的(de)(de)(de)(de)士兵(bing)，而充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)就好(hao)(hao)(hao)比(bi)后(hou)勤部隊--要(yao)讓士兵(bing)在火(huo)線上隨時保(bao)持良好(hao)(hao)(hao)的(de)(de)(de)(de)戰斗狀態，后(hou)勤部隊至關(guan)重(zhong)要(yao)。下(xia)面就讓我們(men)一(yi)步步來(lai)選購充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)。

　　充電器的(de)分類：充(chong)電(dian)器(qi)通常按(an)充(chong)電(dian)時(shi)間(jian)來分類，有"快速(su)(su)充(chong)電(dian)器(qi)（以下簡稱快充(chong)）"和"慢(man)速(su)(su)充(chong)電(dian)器(qi)（以下簡稱慢(man)充(chong)）"兩種。鎳氫電(dian)池的(de)充(chong)電(dian)時(shi)間(jian)基(ji)本(ben)上可按(an)下列公式計(ji)算：充(chong)電(dian)時(shi)間(jian)（小時(shi)）≈效率系數(shu)(shu)(shu)×容量（mAh）÷充(chong)電(dian)電(dian)流(mA) 注：效率系數(shu)(shu)(shu)為1.2～1.5之間(jian)的(de)一個不定數(shu)(shu)(shu)，因(yin)不同充(chong)電(dian)器(qi)而異。

　　慢充(chong)(chong)(chong)一般采用(yong)(yong)恒(heng)流方式充(chong)(chong)(chong)電(dian)(dian)，且在電(dian)(dian)池充(chong)(chong)(chong)滿(man)后(hou)自動轉為涓流充(chong)(chong)(chong)電(dian)(dian)狀態。慢充(chong)(chong)(chong)的優點(dian)(dian)是電(dian)(dian)路設計簡單，易(yi)于實現(xian)，價(jia)格也較低;由于采用(yong)(yong)小電(dian)(dian)流恒(heng)流充(chong)(chong)(chong)電(dian)(dian)，有(you)(you)效地降低了電(dian)(dian)池在充(chong)(chong)(chong)電(dian)(dian)過程中的發熱量，對延長電(dian)(dian)池的使(shi)用(yong)(yong)壽命很有(you)(you)好處。缺點(dian)(dian)就是充(chong)(chong)(chong)電(dian)(dian)時間太長,特別是電(dian)(dian)池數量較多(duo)的情(qing)況下(xia)有(you)(you)點(dian)(dian)力不從心。

　　快充(chong)(chong)(chong)(chong)一(yi)(yi)般都(dou)采用脈沖大(da)電(dian)(dian)(dian)流(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)，但由于電(dian)(dian)(dian)池在大(da)電(dian)(dian)(dian)流(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過(guo)程中會產(chan)生極(ji)化反應，導致(zhi)電(dian)(dian)(dian)池溫(wen)度迅(xun)速升(sheng)高，充(chong)(chong)(chong)(chong)滿后若再繼續加電(dian)(dian)(dian)就(jiu)有可能發生爆炸和(he)燃燒，所以快充(chong)(chong)(chong)(chong)還采用專用芯(xin)片來(lai)控制充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過(guo)程，實時監控電(dian)(dian)(dian)池電(dian)(dian)(dian)量(liang)，一(yi)(yi)旦充(chong)(chong)(chong)(chong)滿就(jiu)自動停(ting)止充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)，使整個充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過(guo)程變得(de)安(an)全、高效。快充(chong)(chong)(chong)(chong)適合(he)電(dian)(dian)(dian)池數量(liang)較多或心急的玩(wan)家。缺點(dian)便是無法避免的大(da)發熱量(liang)，對電(dian)(dian)(dian)池壽命有一(yi)(yi)定的影響.價格(ge)也比慢(man)充(chong)(chong)(chong)(chong)貴一(yi)(yi)些。

　　類型：前文提到的快充和慢充，也是挑選充電器的(de)一個重(zhong)要標準。兩者比較(jiao)起來(lai)，快充(chong)的(de)缺點是(shi)對(dui)電(dian)池(chi)的(de)壽命有所影響以(yi)及價(jia)格較(jiao)高。不過在(zai)這個效(xiao)率至上的(de)時代，快充(chong)的(de)流行趨勢(shi)越(yue)來(lai)越(yue)明顯，因為使用快充(chong)所節省的(de)時間遠比電(dian)池(chi)所減少的(de)壽命來(lai)得重(zhong)要。況且現(xian)在(zai)充(chong)電(dian)電(dian)池(chi)的(de)價(jia)格也越(yue)來(lai)越(yue)低，所以(yi)在(zai)資金允許的(de)情況下，最好選擇快充(chong)。 （質量較(jiao)差的(de)充(chong)電(dian)器內部構(gou)造極為簡單，電(dian)路板的(de)工藝(yi)更是(shi)糟糕，因此(ci)如果是(shi)買非(fei)名牌充(chong)電(dian)器的(de)話(hua)，開(kai)蓋看看還是(shi)有必要的(de)）

　　外觀(guan)及內在(zai)品(pin)質(zhi)(zhi)(zhi)：優秀的做工在(zai)很大程(cheng)度上也(ye)是(shi)廠商(shang)實(shi)力(li)的體現(xian)，而用(yong)料(liao)(liao)的質(zhi)(zhi)(zhi)量(liang)(liang)則(ze)是(shi)安全使用(yong)的保障。我們(men)在(zai)購(gou)買時，可(ke)注意一(yi)(yi)下(xia)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器外觀(guan)的光澤度、邊角和小地方(fang)的精細(xi)程(cheng)度；掂掂分量(liang)(liang)做一(yi)(yi)下(xia)比較，一(yi)(yi)般來說同類型(xing)產(chan)品(pin)偷(tou)工減料(liao)(liao)者重量(liang)(liang)相對較輕。須要(yao)注意的是(shi)，快(kuai)(kuai)充(chong)由于使用(yong)了(le)控(kong)制(zhi)芯(xin)片以(yi)及開關電(dian)(dian)(dian)(dian)(dian)(dian)源|穩壓(ya)器，重量(liang)(liang)有可(ke)能(neng)會(hui)比慢充(chong)輕，所以(yi)掂重量(liang)(liang)這種(zhong)差別(bie)方(fang)法最適合于同一(yi)(yi)類型(xing)的充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器。在(zai)條件允許的情況下(xia)可(ke)以(yi)要(yao)求(qiu)商(shang)家(jia)將(jiang)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器打開觀(guan)看內部結構(gou)，看看內部電(dian)(dian)(dian)(dian)(dian)(dian)路板電(dian)(dian)(dian)(dian)(dian)(dian)子元件的排列、焊(han)接工藝等方(fang)面，以(yi)確保貨真價實(shi)。另外,最好將(jiang)自(zi)己使用(yong)的充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池帶上，在(zai)商(shang)家(jia)處充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)30分鐘左右(you),觀(guan)察一(yi)(yi)下(xia)電(dian)(dian)(dian)(dian)(dian)(dian)池的發熱量(liang)(liang)--質(zhi)(zhi)(zhi)量(liang)(liang)好的充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器能(neng)夠有效地控(kong)制(zhi)發熱量(liang)(liang),而劣(lie)質(zhi)(zhi)(zhi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器則(ze)有可(ke)能(neng)將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)得滾燙--這種(zhong)現(xian)象特別(bie)容易(yi)出現(xian)在(zai)劣(lie)質(zhi)(zhi)(zhi)快(kuai)(kuai)充(chong)上。這樣的產(chan)品(pin)一(yi)(yi)定不能(neng)購(gou)買。

　　易(yi)用性：為了(le)日后(hou)使用更(geng)加方便，在選擇充電器時最好(hao)多考慮(lv)一下產品(pin)的易(yi)用性。

　　有(you)的(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)只(zhi)能(neng)為(wei)AA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，而(er)有(you)些(xie)(xie)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)不(bu)但能(neng)充(chong)(chong)(chong)(chong)(chong)AA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)，還可以為(wei)AAA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，如果(guo)有(you)多種型號(hao)的(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)，可以選(xuan)擇(ze)這(zhe)(zhe)種充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)。 常(chang)見的(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)一(yi)般(ban)可以同(tong)時(shi)為(wei)4節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，手中(zhong)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)比較多，同(tong)時(shi)又不(bu)愿意為(wei)大量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)而(er)長時(shi)間等(deng)待的(de)用戶(hu)，可以選(xuan)擇(ze)有(you)6個或8個甚(shen)至更多充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)插槽的(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，當然，這(zhe)(zhe)類充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)體(ti)積會大一(yi)些(xie)(xie)，不(bu)便(bian)攜(xie)帶，價格也自然會高一(yi)些(xie)(xie)。 很多充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)由于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路設(she)計(ji)的(de)關系(xi),只(zhi)能(neng)為(wei)偶數節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)如2節(jie)、4節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)成對(dui)地充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，這(zhe)(zhe)對(dui)于某些(xie)(xie)使(shi)用單個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)用戶(hu)來說很不(bu)方便(bian)，于是市場(chang)有(you)一(yi)些(xie)(xie)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路設(she)計(ji)時(shi)考慮(lv)(lv)到了(le)這(zhe)(zhe)一(yi)問題，它們可以為(wei)1節(jie)、3節(jie)等(deng)奇(qi)數節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。在購買時(shi)建議(yi)選(xuan)擇(ze)這(zhe)(zhe)類充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，以便(bian)日后的(de)使(shi)用。由于鎳(nie)氫和鎳(nie)鎘(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)結構相近，所以有(you)的(de)鎳(nie)氫電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在設(she)計(ji)時(shi)還考慮(lv)(lv)到了(le)對(dui)鎳(nie)鎘(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)兼容(rong)，如果(guo)想讓手中(zhong)的(de)老電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)再次煥(huan)發青春，這(zhe)(zhe)類充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)倒(dao)是一(yi)個不(bu)錯的(de)選(xuan)擇(ze)。

　　除此以外,還有一個小地方要提醒大家注意，有的充電器為(wei)方便(bian)攜帶，將(jiang)插(cha)(cha)頭與機(ji)身做在了一(yi)(yi)起，不過在使用時往(wang)往(wang)會在多(duo)用插(cha)(cha)線板上占(zhan)去兩個(ge)甚至更多(duo)插(cha)(cha)座(zuo)的(de)(de)位(wei)置(zhi)，對于插(cha)(cha)座(zuo)比較集(ji)中的(de)(de)朋友來說，充電時就(jiu)不得不把其他的(de)(de)插(cha)(cha)頭拔掉，很不方便(bian)。如果不想為(wei)充電器另(ling)行(xing)購(gou)買一(yi)(yi)個(ge)插(cha)(cha)線板的(de)(de)話，就(jiu)應該選(xuan)擇非一(yi)(yi)體式的(de)(de)充電器了。