數碼相機的迅速普及在無形中也帶動了鎳氫充電電池的高速發展。由于數碼相機的工作電流普遍較大，也比較耗電，普通的堿性電池已經難以長時間勝任數碼相機的動力之源。而鎳氫充電電池不但容量較大，還能提供較大的工作電流，又能重復使用且環保，自然而然地成為了大部分數碼相機玩家首選的能源。
      綜觀鎳氫電池市場，與原裝充電器搭配銷售的(de)(de)套裝電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)工作(zuo)穩定，但(dan)價格較高，因(yin)此不(bu)少玩家(jia)都把目光瞄(miao)準了(le)價格相對較低(di)的(de)(de)零售電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)或(huo)價格更為(wei)便(bian)宜的(de)(de)工業(ye)包裝電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)--這(zhe)些電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)都沒有充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器搭配銷售。另外，一部分(fen)玩家(jia)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)使用量較大，一個充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器已經不(bu)能滿足日常需求，所以另行購買電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器是必(bi)要的(de)(de)。因(yin)而如(ru)何去選擇讓自己滿意的(de)(de)鎳(nie)氫電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器便(bian)成了(le)重要的(de)(de)事情。

       劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)危(wei)(wei)害： 一(yi)個充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)價格(ge)一(yi)般都(dou)在(zai)幾十元到數百元之間，比起數碼相機的(de)(de)(de)(de)價格(ge)來(lai)說(shuo)真是顯得有些(xie)微不(bu)(bu)足道。但這(zhe)個小(xiao)小(xiao)的(de)(de)(de)(de)充(chong)(chong)電(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(gei)用戶帶來(lai)的(de)(de)(de)(de)危(wei)(wei)害卻不(bu)(bu)小(xiao)。首先，劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)由于(yu)配件(jian)質(zhi)量不(bu)(bu)過(guo)關(guan)或電(dian)(dian)(dian)氣(qi)性(xing)能(neng)不(bu)(bu)良(liang)，自身(shen)容易出現短路、過(guo)熱燒(shao)毀等(deng)故障，輕(qing)則(ze)讓用戶損(sun)失(shi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)，重則(ze)會引(yin)(yin)(yin)(yin)起各種災難(nan)性(xing)的(de)(de)(de)(de)危(wei)(wei)害如火(huo)災等(deng)；其次(ci)，劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)由于(yu)輸出電(dian)(dian)(dian)流(liu)不(bu)(bu)穩定或不(bu)(bu)符合(he)規格(ge)，會引(yin)(yin)(yin)(yin)起電(dian)(dian)(dian)池(chi)過(guo)熱、充(chong)(chong)電(dian)(dian)(dian)不(bu)(bu)完全等(deng)故障，輕(qing)則(ze)影響使用，重則(ze)會引(yin)(yin)(yin)(yin)起電(dian)(dian)(dian)池(chi)爆炸等(deng)危(wei)(wei)險。由此(ci)看來(lai)，充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)質(zhi)量的(de)(de)(de)(de)好(hao)壞的(de)(de)(de)(de)確要引(yin)(yin)(yin)(yin)起消費者的(de)(de)(de)(de)注意。作(zuo)一(yi)個形象的(de)(de)(de)(de)比喻，電(dian)(dian)(dian)池(chi)好(hao)比戰(zhan)場上的(de)(de)(de)(de)士兵，而充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)就好(hao)比后(hou)勤(qin)部隊--要讓士兵在(zai)火(huo)線上隨(sui)時保持良(liang)好(hao)的(de)(de)(de)(de)戰(zhan)斗狀態，后(hou)勤(qin)部隊至關(guan)重要。下面就讓我們一(yi)步步來(lai)選購充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)。

      充(chong)(chong)電(dian)(dian)(dian)器(qi)的分(fen)類(lei)：充(chong)(chong)電(dian)(dian)(dian)器(qi)通(tong)常按充(chong)(chong)電(dian)(dian)(dian)時(shi)間來分(fen)類(lei)，有"快速(su)充(chong)(chong)電(dian)(dian)(dian)器(qi)（以(yi)下(xia)簡(jian)稱快充(chong)(chong)）"和"慢(man)速(su)充(chong)(chong)電(dian)(dian)(dian)器(qi)（以(yi)下(xia)簡(jian)稱慢(man)充(chong)(chong)）"兩(liang)種(zhong)。鎳氫(qing)電(dian)(dian)(dian)池的充(chong)(chong)電(dian)(dian)(dian)時(shi)間基本上可按下(xia)列公式計算：充(chong)(chong)電(dian)(dian)(dian)時(shi)間（小時(shi)）≈效率(lv)(lv)系數×容量（mAh）÷充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(mA)  注：效率(lv)(lv)系數為1.2～1.5之間的一個不定數，因(yin)不同充(chong)(chong)電(dian)(dian)(dian)器(qi)而異。

      慢充(chong)一般采用恒流方式充(chong)電(dian)，且在電(dian)池(chi)充(chong)滿后自動轉為涓(juan)流充(chong)電(dian)狀態(tai)。慢充(chong)的(de)(de)優點(dian)(dian)是電(dian)路設計簡單，易于(yu)實現，價(jia)格也較(jiao)低;由于(yu)采用小(xiao)電(dian)流恒流充(chong)電(dian)，有(you)效地降低了電(dian)池(chi)在充(chong)電(dian)過程中的(de)(de)發熱量(liang)，對延長電(dian)池(chi)的(de)(de)使用壽(shou)命很有(you)好處。缺(que)點(dian)(dian)就是充(chong)電(dian)時(shi)間太長,特別是電(dian)池(chi)數量(liang)較(jiao)多的(de)(de)情況下有(you)點(dian)(dian)力不從心(xin)。

       快充(chong)(chong)一(yi)般(ban)都采用(yong)(yong)脈沖大電(dian)(dian)(dian)(dian)流充(chong)(chong)電(dian)(dian)(dian)(dian)，但由(you)于電(dian)(dian)(dian)(dian)池(chi)在大電(dian)(dian)(dian)(dian)流充(chong)(chong)電(dian)(dian)(dian)(dian)過程(cheng)中會產生(sheng)極(ji)化反應(ying)，導致電(dian)(dian)(dian)(dian)池(chi)溫度迅速升高，充(chong)(chong)滿后若再繼續加(jia)電(dian)(dian)(dian)(dian)就有可能發(fa)生(sheng)爆炸(zha)和燃(ran)燒(shao)，所(suo)以(yi)快充(chong)(chong)還(huan)采用(yong)(yong)專用(yong)(yong)芯片(pian)來控(kong)制充(chong)(chong)電(dian)(dian)(dian)(dian)過程(cheng)，實時監控(kong)電(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)量，一(yi)旦充(chong)(chong)滿就自動停止充(chong)(chong)電(dian)(dian)(dian)(dian)，使整個充(chong)(chong)電(dian)(dian)(dian)(dian)過程(cheng)變得安(an)全、高效。快充(chong)(chong)適合(he)電(dian)(dian)(dian)(dian)池(chi)數量較(jiao)多或心(xin)急的(de)玩家。缺(que)點便是無(wu)法(fa)避免的(de)大發(fa)熱量，對電(dian)(dian)(dian)(dian)池(chi)壽命有一(yi)定的(de)影響.價格也比慢充(chong)(chong)貴一(yi)些。

       類型：前文提到的(de)(de)(de)快(kuai)充(chong)(chong)(chong)(chong)和慢充(chong)(chong)(chong)(chong)，也(ye)是挑選充(chong)(chong)(chong)(chong)電器(qi)的(de)(de)(de)一個重(zhong)要(yao)標準。兩者比較起來，快(kuai)充(chong)(chong)(chong)(chong)的(de)(de)(de)缺(que)點是對電池(chi)的(de)(de)(de)壽命有所影響以及價格較高。不過(guo)在這個效率(lv)至上(shang)的(de)(de)(de)時代，快(kuai)充(chong)(chong)(chong)(chong)的(de)(de)(de)流行(xing)趨(qu)勢越來越明顯，因為使用(yong)快(kuai)充(chong)(chong)(chong)(chong)所節省的(de)(de)(de)時間遠比電池(chi)所減少的(de)(de)(de)壽命來得重(zhong)要(yao)。況且現在充(chong)(chong)(chong)(chong)電電池(chi)的(de)(de)(de)價格也(ye)越來越低，所以在資金允許的(de)(de)(de)情(qing)況下，最好選擇快(kuai)充(chong)(chong)(chong)(chong)。 （質量較差的(de)(de)(de)充(chong)(chong)(chong)(chong)電器(qi)內部(bu)構造極為簡單，電路板的(de)(de)(de)工藝更是糟糕，因此如果是買非名(ming)牌充(chong)(chong)(chong)(chong)電器(qi)的(de)(de)(de)話，開蓋看看還(huan)是有必要(yao)的(de)(de)(de)）

      外(wai)觀及內在(zai)(zai)(zai)(zai)品(pin)質(zhi)：優秀的(de)(de)做工在(zai)(zai)(zai)(zai)很(hen)大程度上也是廠商實力的(de)(de)體現，而(er)用料(liao)的(de)(de)質(zhi)量則(ze)是安(an)全使用的(de)(de)保(bao)障。我們在(zai)(zai)(zai)(zai)購買(mai)時，可(ke)注(zhu)意(yi)一(yi)下充(chong)電(dian)(dian)器(qi)(qi)(qi)外(wai)觀的(de)(de)光(guang)澤度、邊角和小地方(fang)的(de)(de)精細程度；掂掂分量做一(yi)下比(bi)較(jiao)，一(yi)般(ban)來說(shuo)同類(lei)型產品(pin)偷工減料(liao)者重量相對較(jiao)輕。須要注(zhu)意(yi)的(de)(de)是，快充(chong)由于使用了(le)控制芯片以及開關電(dian)(dian)源，重量有可(ke)能(neng)(neng)會(hui)比(bi)慢充(chong)輕，所以掂重量這種差(cha)別方(fang)法最適合于同一(yi)類(lei)型的(de)(de)充(chong)電(dian)(dian)器(qi)(qi)(qi)。在(zai)(zai)(zai)(zai)條件允(yun)許的(de)(de)情況下可(ke)以要求(qiu)商家將充(chong)電(dian)(dian)器(qi)(qi)(qi)打開觀看內部結構，看看內部電(dian)(dian)路(lu)板電(dian)(dian)子元件的(de)(de)排列、焊接工藝等方(fang)面，以確保(bao)貨真價(jia)實。另外(wai),最好將自己使用的(de)(de)充(chong)電(dian)(dian)電(dian)(dian)池(chi)帶上，在(zai)(zai)(zai)(zai)商家處充(chong)電(dian)(dian)30分鐘左右,觀察一(yi)下電(dian)(dian)池(chi)的(de)(de)發熱(re)量--質(zhi)量好的(de)(de)充(chong)電(dian)(dian)器(qi)(qi)(qi)能(neng)(neng)夠(gou)有效地控制發熱(re)量,而(er)劣(lie)質(zhi)充(chong)電(dian)(dian)器(qi)(qi)(qi)則(ze)有可(ke)能(neng)(neng)將電(dian)(dian)池(chi)充(chong)得滾燙--這種現象特別容易出現在(zai)(zai)(zai)(zai)劣(lie)質(zhi)快充(chong)上。這樣的(de)(de)產品(pin)一(yi)定不能(neng)(neng)購買(mai)。

    易用性：為了(le)日后使用更加方便(bian)，在選擇充電器時最(zui)好多考慮一下(xia)產品的易用性。

    有的充電器只能為AA電池充電，而有些充電器不但能充AA電池，還可以為AAA電池充電，如果有多種型號的充電電池，可以選擇這種充電器。 常見的充電器一般可以同時為4節電池充電，手中的電池比較多，同時又不愿意為大量電池充電而長時間等待的用戶，可以選擇有6個或8個甚至更多充電插槽的充電器，當然，這類充電器的體積會大一些，不便攜帶，價格也自然會高一些。 很多充電器由于電路設計的關系,只能為偶數節電池如2節、4節電池成對地充電，這對于某些使用單個電池的用戶來說很不方便，于是市場有一些充電器在電路設計時考慮到了這一問題，它們可以為1節、3節等奇數節電池充電。在購買時建議選擇這類充電器，以便日后的使用。由于鎳氫和鎳鎘電池的結構相近，所以有的鎳氫電池充電器在設計(ji)時還(huan)考慮到了(le)對鎳(nie)鎘(ge)電池(chi)的兼(jian)容，如(ru)果(guo)想讓手中的老電池(chi)再次(ci)煥發青春，這類充電器倒是一個(ge)不(bu)錯(cuo)的選擇(ze)。

      除此以(yi)外,還有一個小地方(fang)要提醒大(da)家(jia)注意(yi)，有的(de)充(chong)(chong)(chong)電(dian)(dian)器(qi)為(wei)方(fang)便(bian)攜帶，將插(cha)(cha)頭與機(ji)身做在(zai)(zai)了(le)一起(qi)，不過在(zai)(zai)使用時往往會在(zai)(zai)多(duo)用插(cha)(cha)線板上占(zhan)去兩個甚至更多(duo)插(cha)(cha)座的(de)位置，對于插(cha)(cha)座比(bi)較集(ji)中(zhong)的(de)朋友來(lai)說，充(chong)(chong)(chong)電(dian)(dian)時就不得不把其他的(de)插(cha)(cha)頭拔掉，很不方(fang)便(bian)。如果不想為(wei)充(chong)(chong)(chong)電(dian)(dian)器(qi)另行購買一個插(cha)(cha)線板的(de)話，就應(ying)該(gai)選(xuan)擇非一體式的(de)充(chong)(chong)(chong)電(dian)(dian)器(qi)了(le)。