數(shu)碼(ma)(ma)(ma)相(xiang)機(ji)的(de)迅(xun)速普及在無形中也帶動了(le)(le)鎳(nie)氫充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)(chi)的(de)高速發展(zhan)。由于數(shu)碼(ma)(ma)(ma)相(xiang)機(ji)的(de)工作電(dian)(dian)(dian)流普遍較(jiao)大(da)，也比較(jiao)耗電(dian)(dian)(dian)，普通的(de)堿性(xing)電(dian)(dian)(dian)池(chi)(chi)已經難以長時間(jian)勝任數(shu)碼(ma)(ma)(ma)相(xiang)機(ji)的(de)動力之源(yuan)。而(er)鎳(nie)氫充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)(chi)不但容量較(jiao)大(da)，還(huan)能(neng)提供(gong)較(jiao)大(da)的(de)工作電(dian)(dian)(dian)流，又能(neng)重復使用且環保，自然(ran)而(er)然(ran)地成為(wei)了(le)(le)大(da)部分數(shu)碼(ma)(ma)(ma)相(xiang)機(ji)玩家首選的(de)能(neng)源(yuan)。

　　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)(zhi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)危害(hai)： 一(yi)個充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)價格(ge)一(yi)般都在幾(ji)十(shi)元到數百元之間(jian)，比(bi)起(qi)數碼相機的(de)(de)(de)(de)價格(ge)來(lai)說真是顯得有些微不(bu)(bu)(bu)足(zu)道(dao)。但(dan)這個小(xiao)小(xiao)的(de)(de)(de)(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)如(ru)果(guo)質(zhi)(zhi)量(liang)不(bu)(bu)(bu)過關的(de)(de)(de)(de)話，給(gei)用戶帶來(lai)的(de)(de)(de)(de)危害(hai)卻不(bu)(bu)(bu)小(xiao)。首(shou)先，劣(lie)質(zhi)(zhi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)由(you)(you)于配件質(zhi)(zhi)量(liang)不(bu)(bu)(bu)過關或電(dian)(dian)(dian)氣性(xing)能(neng)不(bu)(bu)(bu)良，自身容易(yi)出(chu)現短路、過熱(re)燒(shao)毀等(deng)故(gu)(gu)障，輕則讓(rang)(rang)用戶損失充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)，重(zhong)則會引(yin)起(qi)各種(zhong)災(zai)(zai)難性(xing)的(de)(de)(de)(de)危害(hai)如(ru)火災(zai)(zai)等(deng)；其(qi)次，劣(lie)質(zhi)(zhi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)由(you)(you)于輸出(chu)電(dian)(dian)(dian)流不(bu)(bu)(bu)穩定(ding)或不(bu)(bu)(bu)符合規格(ge)，會引(yin)起(qi)電(dian)(dian)(dian)池過熱(re)、充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)不(bu)(bu)(bu)完全等(deng)故(gu)(gu)障，輕則影響使用，重(zhong)則會引(yin)起(qi)電(dian)(dian)(dian)池爆炸等(deng)危險。由(you)(you)此(ci)看來(lai)，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)質(zhi)(zhi)量(liang)的(de)(de)(de)(de)好(hao)(hao)壞的(de)(de)(de)(de)確要引(yin)起(qi)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)池好(hao)(hao)比(bi)戰場上的(de)(de)(de)(de)士兵，而充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)就(jiu)好(hao)(hao)比(bi)后勤部隊--要讓(rang)(rang)士兵在火線上隨時保持良好(hao)(hao)的(de)(de)(de)(de)戰斗狀態，后勤部隊至(zhi)關重(zhong)要。下(xia)面(mian)就(jiu)讓(rang)(rang)我們一(yi)步(bu)步(bu)來(lai)選購充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)。

　　充電器的分類：充(chong)電(dian)(dian)器(qi)通(tong)常按充(chong)電(dian)(dian)時(shi)(shi)間(jian)(jian)(jian)來分類，有"快(kuai)速(su)充(chong)電(dian)(dian)器(qi)（以下簡稱快(kuai)充(chong)）"和"慢(man)速(su)充(chong)電(dian)(dian)器(qi)（以下簡稱慢(man)充(chong)）"兩種。鎳氫電(dian)(dian)池的充(chong)電(dian)(dian)時(shi)(shi)間(jian)(jian)(jian)基本上可按下列公(gong)式計算：充(chong)電(dian)(dian)時(shi)(shi)間(jian)(jian)(jian)（小(xiao)時(shi)(shi)）≈效率(lv)系數(shu)×容量（mAh）÷充(chong)電(dian)(dian)電(dian)(dian)流(mA) 注：效率(lv)系數(shu)為1.2～1.5之(zhi)間(jian)(jian)(jian)的一(yi)個(ge)不定數(shu)，因不同充(chong)電(dian)(dian)器(qi)而異。

　　慢充(chong)(chong)(chong)(chong)一般采用(yong)恒流方式充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)，且(qie)在電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)(chong)滿(man)后自動轉(zhuan)為涓流充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)狀態(tai)。慢充(chong)(chong)(chong)(chong)的(de)優點是電(dian)(dian)(dian)路設(she)計簡單，易于實現(xian)，價格也較(jiao)低;由于采用(yong)小(xiao)電(dian)(dian)(dian)流恒流充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)，有(you)效地(di)降低了(le)電(dian)(dian)(dian)池(chi)在充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過程中的(de)發熱量(liang)，對延長(chang)電(dian)(dian)(dian)池(chi)的(de)使用(yong)壽命(ming)很有(you)好處。缺點就(jiu)是充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時間太(tai)長(chang),特(te)別是電(dian)(dian)(dian)池(chi)數(shu)量(liang)較(jiao)多的(de)情況下有(you)點力(li)不從心。

　　快充(chong)(chong)(chong)一般都采用(yong)(yong)脈沖(chong)大電(dian)(dian)流(liu)充(chong)(chong)(chong)電(dian)(dian)，但由于電(dian)(dian)池在(zai)大電(dian)(dian)流(liu)充(chong)(chong)(chong)電(dian)(dian)過程中(zhong)會產生極化反應，導致電(dian)(dian)池溫度迅速(su)升高，充(chong)(chong)(chong)滿后若再繼續加電(dian)(dian)就有可能(neng)發(fa)生爆炸和燃(ran)燒，所以快充(chong)(chong)(chong)還采用(yong)(yong)專用(yong)(yong)芯(xin)片(pian)來控(kong)制充(chong)(chong)(chong)電(dian)(dian)過程，實時監(jian)控(kong)電(dian)(dian)池電(dian)(dian)量(liang)，一旦充(chong)(chong)(chong)滿就自動停止充(chong)(chong)(chong)電(dian)(dian)，使整個充(chong)(chong)(chong)電(dian)(dian)過程變得(de)安全、高效。快充(chong)(chong)(chong)適合電(dian)(dian)池數量(liang)較多或(huo)心急的(de)玩家。缺點便是無(wu)法避免的(de)大發(fa)熱量(liang)，對電(dian)(dian)池壽(shou)命(ming)有一定的(de)影(ying)響.價(jia)格也比慢充(chong)(chong)(chong)貴(gui)一些。

　　類型：前文提到的快充和慢充，也是挑選充電器的(de)(de)(de)一個(ge)重要(yao)標(biao)準(zhun)。兩者比較(jiao)起來，快(kuai)充(chong)的(de)(de)(de)缺點是(shi)(shi)對電(dian)池的(de)(de)(de)壽命(ming)(ming)有所影響以及(ji)價(jia)格較(jiao)高。不(bu)過在(zai)這個(ge)效(xiao)率至上(shang)的(de)(de)(de)時代，快(kuai)充(chong)的(de)(de)(de)流行(xing)趨勢越(yue)(yue)(yue)來越(yue)(yue)(yue)明顯，因(yin)為使用快(kuai)充(chong)所節省的(de)(de)(de)時間遠(yuan)比電(dian)池所減少的(de)(de)(de)壽命(ming)(ming)來得重要(yao)。況(kuang)且現(xian)在(zai)充(chong)電(dian)電(dian)池的(de)(de)(de)價(jia)格也越(yue)(yue)(yue)來越(yue)(yue)(yue)低，所以在(zai)資金允許的(de)(de)(de)情況(kuang)下，最好選(xuan)擇快(kuai)充(chong)。 （質(zhi)量較(jiao)差的(de)(de)(de)充(chong)電(dian)器內部(bu)構造極(ji)為簡單(dan)，電(dian)路板(ban)的(de)(de)(de)工藝更(geng)是(shi)(shi)糟糕，因(yin)此如(ru)果是(shi)(shi)買非(fei)名牌充(chong)電(dian)器的(de)(de)(de)話，開蓋看看還(huan)是(shi)(shi)有必要(yao)的(de)(de)(de)）

　　外觀(guan)及內(nei)在品(pin)質(zhi)：優秀(xiu)的(de)(de)(de)(de)(de)(de)(de)做(zuo)工(gong)在很大(da)程(cheng)度(du)上也是(shi)廠商實(shi)力(li)的(de)(de)(de)(de)(de)(de)(de)體現，而用(yong)料(liao)的(de)(de)(de)(de)(de)(de)(de)質(zhi)量(liang)則是(shi)安全使用(yong)的(de)(de)(de)(de)(de)(de)(de)保障。我們在購(gou)買時，可(ke)注(zhu)(zhu)意一下充(chong)(chong)電(dian)(dian)器(qi)外觀(guan)的(de)(de)(de)(de)(de)(de)(de)光(guang)澤(ze)度(du)、邊角和小地(di)方(fang)的(de)(de)(de)(de)(de)(de)(de)精細程(cheng)度(du)；掂掂分量(liang)做(zuo)一下比較(jiao)，一般(ban)來說同(tong)類(lei)型產品(pin)偷工(gong)減(jian)料(liao)者(zhe)重(zhong)量(liang)相對較(jiao)輕。須(xu)要注(zhu)(zhu)意的(de)(de)(de)(de)(de)(de)(de)是(shi)，快充(chong)(chong)由于使用(yong)了控(kong)制(zhi)芯片以(yi)(yi)及開(kai)關(guan)電(dian)(dian)源(yuan)|穩壓(ya)器(qi)，重(zhong)量(liang)有可(ke)能(neng)(neng)會比慢充(chong)(chong)輕，所以(yi)(yi)掂重(zhong)量(liang)這(zhe)種(zhong)差(cha)別方(fang)法最(zui)適(shi)合于同(tong)一類(lei)型的(de)(de)(de)(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)器(qi)。在條件(jian)允(yun)許的(de)(de)(de)(de)(de)(de)(de)情況下可(ke)以(yi)(yi)要求商家將(jiang)充(chong)(chong)電(dian)(dian)器(qi)打開(kai)觀(guan)看內(nei)部結構，看看內(nei)部電(dian)(dian)路板電(dian)(dian)子元件(jian)的(de)(de)(de)(de)(de)(de)(de)排列、焊接工(gong)藝等方(fang)面(mian)，以(yi)(yi)確保貨真價實(shi)。另外,最(zui)好將(jiang)自己(ji)使用(yong)的(de)(de)(de)(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)電(dian)(dian)池(chi)帶上，在商家處(chu)充(chong)(chong)電(dian)(dian)30分鐘左右,觀(guan)察一下電(dian)(dian)池(chi)的(de)(de)(de)(de)(de)(de)(de)發(fa)熱量(liang)--質(zhi)量(liang)好的(de)(de)(de)(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)器(qi)能(neng)(neng)夠(gou)有效地(di)控(kong)制(zhi)發(fa)熱量(liang),而劣(lie)質(zhi)充(chong)(chong)電(dian)(dian)器(qi)則有可(ke)能(neng)(neng)將(jiang)電(dian)(dian)池(chi)充(chong)(chong)得滾(gun)燙--這(zhe)種(zhong)現象(xiang)特別容(rong)易出現在劣(lie)質(zhi)快充(chong)(chong)上。這(zhe)樣的(de)(de)(de)(de)(de)(de)(de)產品(pin)一定不(bu)能(neng)(neng)購(gou)買。

　　易(yi)用性：為了日后使用更加(jia)方便(bian)，在選擇(ze)充電器時最好(hao)多考慮一下產品的(de)易(yi)用性。

　　有(you)(you)的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器只(zhi)(zhi)能為(wei)(wei)(wei)AA電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，而有(you)(you)些(xie)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器不但能充(chong)(chong)AA電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，還可以(yi)為(wei)(wei)(wei)AAA電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，如(ru)果有(you)(you)多種(zhong)型號的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，可以(yi)選擇這種(zhong)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器。 常(chang)見的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器一(yi)般可以(yi)同時(shi)為(wei)(wei)(wei)4節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，手(shou)中的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)比較多，同時(shi)又不愿意為(wei)(wei)(wei)大量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)而長時(shi)間等待的(de)(de)(de)用戶，可以(yi)選擇有(you)(you)6個(ge)或8個(ge)甚至更(geng)多充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)插槽的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器，當然，這類充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器的(de)(de)(de)體積會大一(yi)些(xie)，不便(bian)攜帶(dai)，價格也自然會高一(yi)些(xie)。 很(hen)多充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器由(you)于電(dian)(dian)(dian)(dian)(dian)(dian)路設(she)計的(de)(de)(de)關系,只(zhi)(zhi)能為(wei)(wei)(wei)偶數節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)如(ru)2節(jie)、4節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)成對地(di)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，這對于某些(xie)使用單(dan)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)用戶來(lai)說很(hen)不方便(bian)，于是市場有(you)(you)一(yi)些(xie)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)路設(she)計時(shi)考慮(lv)(lv)到了這一(yi)問題，它們可以(yi)為(wei)(wei)(wei)1節(jie)、3節(jie)等奇數節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)。在(zai)購(gou)買時(shi)建(jian)議選擇這類充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器，以(yi)便(bian)日(ri)后的(de)(de)(de)使用。由(you)于鎳氫和(he)鎳鎘電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)結構相(xiang)近，所以(yi)有(you)(you)的(de)(de)(de)鎳氫電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器在(zai)設(she)計時(shi)還考慮(lv)(lv)到了對鎳鎘電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)兼容，如(ru)果想讓手(shou)中的(de)(de)(de)老(lao)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)再次煥發青春，這類充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器倒是一(yi)個(ge)不錯的(de)(de)(de)選擇。

　　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(fang)便(bian)攜帶(dai)，將(jiang)插(cha)(cha)頭(tou)與機身(shen)做(zuo)在(zai)了(le)一起，不過在(zai)使用時往(wang)往(wang)會(hui)在(zai)多用插(cha)(cha)線(xian)(xian)板上占(zhan)去兩個(ge)(ge)甚至更多插(cha)(cha)座的(de)(de)位(wei)置，對于插(cha)(cha)座比較(jiao)集中(zhong)的(de)(de)朋友來(lai)說，充(chong)電(dian)(dian)時就不得不把其他的(de)(de)插(cha)(cha)頭(tou)拔掉，很(hen)不方(fang)便(bian)。如(ru)果(guo)不想(xiang)為(wei)充(chong)電(dian)(dian)器另行購買(mai)一個(ge)(ge)插(cha)(cha)線(xian)(xian)板的(de)(de)話，就應該(gai)選(xuan)擇非(fei)一體式的(de)(de)充(chong)電(dian)(dian)器了(le)。