數碼相(xiang)機的(de)(de)迅速(su)普(pu)(pu)及在(zai)無形(xing)中也帶動了鎳氫(qing)充(chong)電(dian)(dian)電(dian)(dian)池的(de)(de)高速(su)發展。由(you)于(yu)數碼相(xiang)機的(de)(de)工(gong)作(zuo)電(dian)(dian)流普(pu)(pu)遍(bian)較(jiao)大(da)(da)，也比較(jiao)耗電(dian)(dian)，普(pu)(pu)通的(de)(de)堿性(xing)電(dian)(dian)池已經難以長時間勝任數碼相(xiang)機的(de)(de)動力之(zhi)源。而(er)(er)鎳氫(qing)充(chong)電(dian)(dian)電(dian)(dian)池不但容量較(jiao)大(da)(da)，還(huan)能提(ti)供較(jiao)大(da)(da)的(de)(de)工(gong)作(zuo)電(dian)(dian)流，又(you)能重(zhong)復使(shi)用(yong)且環保，自然而(er)(er)然地成為(wei)了大(da)(da)部分數碼相(xiang)機玩家首(shou)選的(de)(de)能源。

　　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。

　　劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)(dian)器的(de)(de)危害： 一個(ge)(ge)充(chong)(chong)電(dian)(dian)(dian)(dian)器的(de)(de)價格(ge)一般都在幾十(shi)元到數百元之間，比(bi)(bi)起(qi)數碼(ma)相機的(de)(de)價格(ge)來(lai)說真是(shi)顯得有些微不(bu)足道。但這個(ge)(ge)小(xiao)小(xiao)的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)器如果質(zhi)量不(bu)過關的(de)(de)話，給用(yong)戶帶來(lai)的(de)(de)危害卻不(bu)小(xiao)。首先，劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)(dian)器由(you)(you)于配(pei)件質(zhi)量不(bu)過關或(huo)電(dian)(dian)(dian)(dian)氣性能不(bu)良，自身容易出現短路、過熱燒毀等(deng)故(gu)(gu)障(zhang)，輕則(ze)讓用(yong)戶損失充(chong)(chong)電(dian)(dian)(dian)(dian)器，重則(ze)會引起(qi)各種災(zai)難性的(de)(de)危害如火災(zai)等(deng)；其次(ci)，劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)(dian)器由(you)(you)于輸出電(dian)(dian)(dian)(dian)流(liu)不(bu)穩定(ding)或(huo)不(bu)符合規格(ge)，會引起(qi)電(dian)(dian)(dian)(dian)池過熱、充(chong)(chong)電(dian)(dian)(dian)(dian)不(bu)完(wan)全等(deng)故(gu)(gu)障(zhang)，輕則(ze)影(ying)響使用(yong)，重則(ze)會引起(qi)電(dian)(dian)(dian)(dian)池爆炸等(deng)危險。由(you)(you)此看來(lai)，充(chong)(chong)電(dian)(dian)(dian)(dian)器質(zhi)量的(de)(de)好壞的(de)(de)確(que)要(yao)引起(qi)消費者的(de)(de)注(zhu)意。作一個(ge)(ge)形象(xiang)的(de)(de)比(bi)(bi)喻(yu)，電(dian)(dian)(dian)(dian)池好比(bi)(bi)戰場上的(de)(de)士兵，而充(chong)(chong)電(dian)(dian)(dian)(dian)器就好比(bi)(bi)后(hou)勤(qin)部隊--要(yao)讓士兵在火線上隨時(shi)保(bao)持良好的(de)(de)戰斗(dou)狀(zhuang)態，后(hou)勤(qin)部隊至關重要(yao)。下(xia)面(mian)就讓我(wo)們一步(bu)步(bu)來(lai)選(xuan)購充(chong)(chong)電(dian)(dian)(dian)(dian)器。

　　充電器的分類：充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器通常按充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)時(shi)間來分類，有"快速充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器（以下簡稱快充(chong)(chong)(chong)(chong)）"和"慢速充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器（以下簡稱慢充(chong)(chong)(chong)(chong)）"兩種。鎳氫電(dian)(dian)(dian)(dian)池(chi)的充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)時(shi)間基(ji)本上可按下列公(gong)式計算：充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)時(shi)間（小時(shi)）≈效率系數(shu)(shu)×容量（mAh）÷充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(mA) 注(zhu)：效率系數(shu)(shu)為(wei)1.2～1.5之(zhi)間的一個不(bu)定數(shu)(shu)，因(yin)不(bu)同充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器而異。

　　慢充(chong)一般采用恒(heng)流(liu)方(fang)式(shi)充(chong)電(dian)(dian)(dian)，且(qie)在電(dian)(dian)(dian)池(chi)充(chong)滿后自動轉為涓流(liu)充(chong)電(dian)(dian)(dian)狀(zhuang)態(tai)。慢充(chong)的(de)優(you)點是電(dian)(dian)(dian)路設計簡單，易(yi)于實(shi)現，價格也較低(di);由于采用小電(dian)(dian)(dian)流(liu)恒(heng)流(liu)充(chong)電(dian)(dian)(dian)，有(you)效(xiao)地(di)降低(di)了電(dian)(dian)(dian)池(chi)在充(chong)電(dian)(dian)(dian)過程中的(de)發熱量，對(dui)延(yan)長(chang)電(dian)(dian)(dian)池(chi)的(de)使用壽命很有(you)好處。缺(que)點就是充(chong)電(dian)(dian)(dian)時(shi)間太長(chang),特別是電(dian)(dian)(dian)池(chi)數量較多的(de)情(qing)況下有(you)點力不從心。

　　快(kuai)充(chong)(chong)(chong)一般都采用(yong)脈沖大(da)電(dian)(dian)(dian)(dian)(dian)(dian)流充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，但由于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)在大(da)電(dian)(dian)(dian)(dian)(dian)(dian)流充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)中會產生極化反(fan)應，導致電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)溫(wen)度迅速升高，充(chong)(chong)(chong)滿后(hou)若再繼(ji)續加電(dian)(dian)(dian)(dian)(dian)(dian)就有(you)可能發生爆炸和燃燒，所以快(kuai)充(chong)(chong)(chong)還采用(yong)專用(yong)芯(xin)片(pian)來控制充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)，實時監控電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)(dian)量，一旦充(chong)(chong)(chong)滿就自動停止充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，使整個充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)變得安全、高效。快(kuai)充(chong)(chong)(chong)適合(he)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)數量較多(duo)或(huo)心(xin)急的玩家。缺點便是無法避免(mian)的大(da)發熱(re)量，對電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)壽(shou)命(ming)有(you)一定的影響.價格也(ye)比慢(man)充(chong)(chong)(chong)貴一些。

　　類型：前文提到的快充和慢充，也是挑選充電器的一個重(zhong)要(yao)標準。兩者比(bi)較起來，快(kuai)(kuai)充的缺(que)點(dian)是(shi)對電(dian)(dian)(dian)池的壽(shou)命有所(suo)(suo)影響以及(ji)價(jia)格較高。不過在(zai)這(zhe)個效率至上的時代，快(kuai)(kuai)充的流(liu)行(xing)趨勢越(yue)(yue)來越(yue)(yue)明顯，因為使用快(kuai)(kuai)充所(suo)(suo)節省的時間(jian)遠比(bi)電(dian)(dian)(dian)池所(suo)(suo)減少的壽(shou)命來得重(zhong)要(yao)。況(kuang)且現在(zai)充電(dian)(dian)(dian)電(dian)(dian)(dian)池的價(jia)格也越(yue)(yue)來越(yue)(yue)低，所(suo)(suo)以在(zai)資金允(yun)許的情況(kuang)下，最好選擇(ze)快(kuai)(kuai)充。 （質量較差的充電(dian)(dian)(dian)器內部構造極為簡單，電(dian)(dian)(dian)路板的工藝(yi)更(geng)是(shi)糟(zao)糕，因此如果是(shi)買非名牌充電(dian)(dian)(dian)器的話，開蓋看看還是(shi)有必要(yao)的）

　　外觀及內(nei)在(zai)品質：優秀的(de)做(zuo)工(gong)在(zai)很(hen)大程度(du)上也(ye)是廠商(shang)實力的(de)體現，而用料的(de)質量(liang)(liang)則是安全(quan)使(shi)用的(de)保(bao)障(zhang)。我(wo)們(men)在(zai)購(gou)買時，可注(zhu)意一(yi)(yi)下充(chong)(chong)電(dian)器(qi)外觀的(de)光澤度(du)、邊角和小地方的(de)精細程度(du)；掂(dian)掂(dian)分(fen)量(liang)(liang)做(zuo)一(yi)(yi)下比較，一(yi)(yi)般來(lai)說同(tong)類(lei)型產品偷工(gong)減料者重(zhong)量(liang)(liang)相對(dui)較輕。須(xu)要注(zhu)意的(de)是，快(kuai)充(chong)(chong)由于使(shi)用了控制(zhi)芯片以及開關電(dian)源(yuan)|穩(wen)壓器(qi)，重(zhong)量(liang)(liang)有可能(neng)會比慢充(chong)(chong)輕，所以掂(dian)重(zhong)量(liang)(liang)這種差別方法最適合于同(tong)一(yi)(yi)類(lei)型的(de)充(chong)(chong)電(dian)器(qi)。在(zai)條件允許的(de)情況下可以要求(qiu)商(shang)家(jia)將充(chong)(chong)電(dian)器(qi)打開觀看(kan)(kan)內(nei)部結(jie)構，看(kan)(kan)看(kan)(kan)內(nei)部電(dian)路板電(dian)子元件的(de)排列、焊接工(gong)藝等方面，以確保(bao)貨真價實。另外,最好(hao)(hao)將自己使(shi)用的(de)充(chong)(chong)電(dian)電(dian)池(chi)帶上，在(zai)商(shang)家(jia)處充(chong)(chong)電(dian)30分(fen)鐘(zhong)左右,觀察一(yi)(yi)下電(dian)池(chi)的(de)發(fa)熱(re)量(liang)(liang)--質量(liang)(liang)好(hao)(hao)的(de)充(chong)(chong)電(dian)器(qi)能(neng)夠有效(xiao)地控制(zhi)發(fa)熱(re)量(liang)(liang),而劣質充(chong)(chong)電(dian)器(qi)則有可能(neng)將電(dian)池(chi)充(chong)(chong)得滾燙--這種現象(xiang)特(te)別容易出現在(zai)劣質快(kuai)充(chong)(chong)上。這樣的(de)產品一(yi)(yi)定不能(neng)購(gou)買。

　　易用(yong)性(xing)：為了日(ri)后(hou)使用(yong)更加方便，在選擇充電器時(shi)最(zui)好多考慮一下產品的易用(yong)性(xing)。

　　有的(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)只能(neng)為(wei)AA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，而(er)有些(xie)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)不但能(neng)充(chong)AA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，還(huan)(huan)可(ke)以(yi)(yi)為(wei)AAA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，如果有多(duo)種型號(hao)的(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，可(ke)以(yi)(yi)選(xuan)擇這種充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)。 常見的(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)般可(ke)以(yi)(yi)同(tong)時(shi)(shi)為(wei)4節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，手中的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)比較(jiao)多(duo)，同(tong)時(shi)(shi)又(you)不愿意為(wei)大量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)而(er)長時(shi)(shi)間等(deng)待的(de)(de)(de)用(yong)戶，可(ke)以(yi)(yi)選(xuan)擇有6個(ge)或8個(ge)甚至更多(duo)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)插槽的(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，當然，這類(lei)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)體積會大一(yi)些(xie)，不便(bian)攜帶，價格也自然會高一(yi)些(xie)。 很多(duo)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)由(you)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路設(she)計的(de)(de)(de)關系,只能(neng)為(wei)偶數(shu)(shu)節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)如2節(jie)(jie)、4節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)成對地(di)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，這對于(yu)某些(xie)使用(yong)單(dan)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)用(yong)戶來說很不方(fang)便(bian)，于(yu)是(shi)市場有一(yi)些(xie)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路設(she)計時(shi)(shi)考慮到了這一(yi)問題，它們可(ke)以(yi)(yi)為(wei)1節(jie)(jie)、3節(jie)(jie)等(deng)奇數(shu)(shu)節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。在(zai)購買時(shi)(shi)建議(yi)選(xuan)擇這類(lei)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，以(yi)(yi)便(bian)日后(hou)的(de)(de)(de)使用(yong)。由(you)于(yu)鎳(nie)(nie)氫和鎳(nie)(nie)鎘(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)結構相近，所以(yi)(yi)有的(de)(de)(de)鎳(nie)(nie)氫電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)在(zai)設(she)計時(shi)(shi)還(huan)(huan)考慮到了對鎳(nie)(nie)鎘(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)兼容，如果想讓手中的(de)(de)(de)老電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)再次煥發青春，這類(lei)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)倒是(shi)一(yi)個(ge)不錯的(de)(de)(de)選(xuan)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)便攜(xie)帶，將插頭與機身做在(zai)(zai)(zai)了一(yi)起，不過(guo)在(zai)(zai)(zai)使用時往往會在(zai)(zai)(zai)多用插線板上占去兩個甚至更(geng)多插座的(de)位(wei)置，對于插座比(bi)較(jiao)集(ji)中的(de)朋友來說(shuo)，充(chong)電(dian)時就不得不把(ba)其他的(de)插頭拔掉(diao)，很不方(fang)便。如果不想為(wei)充(chong)電(dian)器另行購(gou)買一(yi)個插線板的(de)話，就應該選擇非一(yi)體式(shi)的(de)充(chong)電(dian)器了。