數(shu)碼相(xiang)(xiang)(xiang)機(ji)的迅速(su)普(pu)及在無(wu)形中(zhong)也(ye)帶動了鎳氫(qing)充(chong)電電池(chi)的高速(su)發展。由于數(shu)碼相(xiang)(xiang)(xiang)機(ji)的工作電流普(pu)遍較(jiao)(jiao)大，也(ye)比較(jiao)(jiao)耗電，普(pu)通的堿性電池(chi)已經難(nan)以(yi)長(chang)時間勝任(ren)數(shu)碼相(xiang)(xiang)(xiang)機(ji)的動力之源。而鎳氫(qing)充(chong)電電池(chi)不但容量較(jiao)(jiao)大，還能(neng)(neng)提(ti)供較(jiao)(jiao)大的工作電流，又能(neng)(neng)重復(fu)使用且環(huan)保(bao)，自然而然地成為了大部(bu)分(fen)數(shu)碼相(xiang)(xiang)(xiang)機(ji)玩家首選的能(neng)(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。

　　劣質充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)危(wei)害： 一個充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)價格(ge)一般都在(zai)幾十元(yuan)到數百元(yuan)之間，比(bi)起(qi)(qi)數碼(ma)相機的(de)(de)(de)價格(ge)來說真是(shi)顯(xian)得有些微不(bu)(bu)足(zu)道。但這個小(xiao)小(xiao)的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)如(ru)果質量(liang)不(bu)(bu)過(guo)關(guan)的(de)(de)(de)話(hua)，給用戶帶來的(de)(de)(de)危(wei)害卻不(bu)(bu)小(xiao)。首先(xian)，劣質充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)由于配(pei)件質量(liang)不(bu)(bu)過(guo)關(guan)或電(dian)(dian)(dian)(dian)氣性(xing)(xing)能不(bu)(bu)良，自身容易(yi)出現短路、過(guo)熱燒毀等故障，輕則讓(rang)(rang)用戶損失充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)，重(zhong)則會引(yin)起(qi)(qi)各種災難性(xing)(xing)的(de)(de)(de)危(wei)害如(ru)火(huo)災等；其次，劣質充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)由于輸出電(dian)(dian)(dian)(dian)流不(bu)(bu)穩(wen)定或不(bu)(bu)符(fu)合規格(ge)，會引(yin)起(qi)(qi)電(dian)(dian)(dian)(dian)池過(guo)熱、充(chong)(chong)電(dian)(dian)(dian)(dian)不(bu)(bu)完(wan)全等故障，輕則影響使用，重(zhong)則會引(yin)起(qi)(qi)電(dian)(dian)(dian)(dian)池爆炸(zha)等危(wei)險。由此看(kan)來，充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)質量(liang)的(de)(de)(de)好(hao)壞的(de)(de)(de)確要引(yin)起(qi)(qi)消費者的(de)(de)(de)注(zhu)意。作一個形象的(de)(de)(de)比(bi)喻，電(dian)(dian)(dian)(dian)池好(hao)比(bi)戰(zhan)場(chang)上的(de)(de)(de)士兵，而充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)就好(hao)比(bi)后勤部隊(dui)--要讓(rang)(rang)士兵在(zai)火(huo)線上隨時保持良好(hao)的(de)(de)(de)戰(zhan)斗狀態(tai)，后勤部隊(dui)至關(guan)重(zhong)要。下面(mian)就讓(rang)(rang)我們一步(bu)(bu)步(bu)(bu)來選購充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)。

　　充電器的(de)分(fen)類：充(chong)(chong)(chong)電(dian)(dian)器(qi)(qi)通常按(an)充(chong)(chong)(chong)電(dian)(dian)時(shi)(shi)間(jian)(jian)來(lai)分(fen)類，有"快(kuai)速充(chong)(chong)(chong)電(dian)(dian)器(qi)(qi)（以下(xia)(xia)簡稱快(kuai)充(chong)(chong)(chong)）"和"慢速充(chong)(chong)(chong)電(dian)(dian)器(qi)(qi)（以下(xia)(xia)簡稱慢充(chong)(chong)(chong)）"兩(liang)種。鎳氫(qing)電(dian)(dian)池的(de)充(chong)(chong)(chong)電(dian)(dian)時(shi)(shi)間(jian)(jian)基(ji)本上可按(an)下(xia)(xia)列公(gong)式(shi)計(ji)算：充(chong)(chong)(chong)電(dian)(dian)時(shi)(shi)間(jian)(jian)（小時(shi)(shi)）≈效(xiao)率系(xi)數×容(rong)量(liang)（mAh）÷充(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)流(mA) 注：效(xiao)率系(xi)數為1.2～1.5之間(jian)(jian)的(de)一個(ge)不定數，因不同(tong)充(chong)(chong)(chong)電(dian)(dian)器(qi)(qi)而異。

　　慢充(chong)一般采用恒(heng)(heng)流方(fang)式充(chong)電(dian)，且在電(dian)池(chi)充(chong)滿后自動轉為涓流充(chong)電(dian)狀態(tai)。慢充(chong)的優點是(shi)電(dian)路設(she)計簡單(dan)，易(yi)于實現(xian)，價格也較低;由(you)于采用小電(dian)流恒(heng)(heng)流充(chong)電(dian)，有效地降低了電(dian)池(chi)在充(chong)電(dian)過程中的發熱量，對延長電(dian)池(chi)的使(shi)用壽命很有好處。缺(que)點就(jiu)是(shi)充(chong)電(dian)時間太長,特別是(shi)電(dian)池(chi)數(shu)量較多的情(qing)況下有點力不從心。

　　快充(chong)一般都采用脈沖大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，但由于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池在大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)過程(cheng)中會產生極化反(fan)應，導致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池溫度(du)迅速升(sheng)高，充(chong)滿(man)后若再繼續加(jia)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)就(jiu)有可(ke)能發生爆(bao)炸和燃燒，所以快充(chong)還采用專用芯片來控制充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)過程(cheng)，實時監控電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量，一旦(dan)充(chong)滿(man)就(jiu)自動停止充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，使整(zheng)個充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)過程(cheng)變得安全、高效。快充(chong)適合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池數(shu)量較(jiao)多(duo)或心急的(de)玩(wan)家。缺點便是(shi)無法避(bi)免的(de)大(da)發熱量，對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池壽命有一定的(de)影響.價(jia)格也比慢充(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)(de)一個重要(yao)標準。兩者比較(jiao)起來，快充(chong)(chong)的(de)(de)(de)(de)缺(que)點是(shi)對電(dian)(dian)池的(de)(de)(de)(de)壽命(ming)有所影響(xiang)以及價格較(jiao)高。不過(guo)在這個效率(lv)至上(shang)的(de)(de)(de)(de)時代，快充(chong)(chong)的(de)(de)(de)(de)流行趨(qu)勢越來越明顯，因(yin)為(wei)使用(yong)快充(chong)(chong)所節省(sheng)的(de)(de)(de)(de)時間(jian)遠比電(dian)(dian)池所減少的(de)(de)(de)(de)壽命(ming)來得重要(yao)。況(kuang)且現在充(chong)(chong)電(dian)(dian)電(dian)(dian)池的(de)(de)(de)(de)價格也(ye)越來越低，所以在資金允(yun)許(xu)的(de)(de)(de)(de)情況(kuang)下，最好選擇快充(chong)(chong)。 （質量(liang)較(jiao)差的(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)器內部構(gou)造極為(wei)簡單，電(dian)(dian)路板的(de)(de)(de)(de)工藝更是(shi)糟(zao)糕(gao)，因(yin)此如果是(shi)買非名牌充(chong)(chong)電(dian)(dian)器的(de)(de)(de)(de)話，開蓋看(kan)(kan)看(kan)(kan)還是(shi)有必(bi)要(yao)的(de)(de)(de)(de)）

　　外觀(guan)及內(nei)在(zai)品質(zhi)(zhi)：優(you)秀的(de)(de)(de)(de)做工(gong)在(zai)很大(da)程度上也是廠商實力的(de)(de)(de)(de)體現(xian)(xian)，而用(yong)(yong)料的(de)(de)(de)(de)質(zhi)(zhi)量(liang)(liang)則是安全使用(yong)(yong)的(de)(de)(de)(de)保障。我們(men)在(zai)購(gou)買時，可(ke)注意一(yi)下(xia)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)外觀(guan)的(de)(de)(de)(de)光(guang)澤度、邊角和小地方(fang)的(de)(de)(de)(de)精細程度；掂(dian)(dian)掂(dian)(dian)分量(liang)(liang)做一(yi)下(xia)比較，一(yi)般來(lai)說同類(lei)型(xing)產品偷(tou)工(gong)減料者(zhe)重(zhong)量(liang)(liang)相(xiang)對(dui)較輕(qing)。須要注意的(de)(de)(de)(de)是，快充(chong)(chong)由于使用(yong)(yong)了控(kong)制(zhi)芯(xin)片以及開(kai)關電(dian)(dian)(dian)源|穩壓器(qi)(qi)，重(zhong)量(liang)(liang)有可(ke)能(neng)會比慢(man)充(chong)(chong)輕(qing)，所以掂(dian)(dian)重(zhong)量(liang)(liang)這種(zhong)差別方(fang)法最適合于同一(yi)類(lei)型(xing)的(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)。在(zai)條(tiao)件允許的(de)(de)(de)(de)情況(kuang)下(xia)可(ke)以要求商家將充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)打開(kai)觀(guan)看(kan)內(nei)部(bu)結(jie)構，看(kan)看(kan)內(nei)部(bu)電(dian)(dian)(dian)路板(ban)電(dian)(dian)(dian)子元件的(de)(de)(de)(de)排列、焊接工(gong)藝等(deng)方(fang)面(mian)，以確保貨真價(jia)實。另外,最好將自己使用(yong)(yong)的(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)帶上，在(zai)商家處充(chong)(chong)電(dian)(dian)(dian)30分鐘左右(you),觀(guan)察一(yi)下(xia)電(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)發熱(re)量(liang)(liang)--質(zhi)(zhi)量(liang)(liang)好的(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)能(neng)夠有效地控(kong)制(zhi)發熱(re)量(liang)(liang),而劣質(zhi)(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)則有可(ke)能(neng)將電(dian)(dian)(dian)池(chi)充(chong)(chong)得滾(gun)燙--這種(zhong)現(xian)(xian)象特(te)別容(rong)易(yi)出現(xian)(xian)在(zai)劣質(zhi)(zhi)快充(chong)(chong)上。這樣的(de)(de)(de)(de)產品一(yi)定不能(neng)購(gou)買。

　　易用性(xing)：為了日后使用更加(jia)方便，在(zai)選擇(ze)充電(dian)器(qi)時(shi)最好多考慮一下(xia)產品的易用性(xing)。

　　有(you)(you)的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)只(zhi)能為AA電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，而有(you)(you)些充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)不但能充(chong)(chong)AA電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)，還可以(yi)為AAA電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，如果有(you)(you)多(duo)種型號的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)，可以(yi)選(xuan)擇這種充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)。 常見的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)一般(ban)可以(yi)同時(shi)(shi)為4節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，手(shou)中的(de)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)比較多(duo)，同時(shi)(shi)又不愿意為大(da)量電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)而長時(shi)(shi)間等(deng)待的(de)用戶(hu)，可以(yi)選(xuan)擇有(you)(you)6個(ge)或8個(ge)甚至更(geng)多(duo)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)插槽的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，當然，這類充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)體(ti)積會(hui)(hui)大(da)一些，不便攜帶，價格也自然會(hui)(hui)高一些。 很多(duo)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)由于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)設(she)計(ji)的(de)關系,只(zhi)能為偶數節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)如2節(jie)(jie)、4節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)成(cheng)對地充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，這對于(yu)某些使(shi)用單個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)的(de)用戶(hu)來說很不方便，于(yu)是(shi)市場有(you)(you)一些充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)設(she)計(ji)時(shi)(shi)考(kao)慮到(dao)(dao)了這一問題，它們可以(yi)為1節(jie)(jie)、3節(jie)(jie)等(deng)奇數節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)。在(zai)購買時(shi)(shi)建議選(xuan)擇這類充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，以(yi)便日后的(de)使(shi)用。由于(yu)鎳(nie)氫(qing)和(he)鎳(nie)鎘(ge)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)的(de)結構相近，所(suo)以(yi)有(you)(you)的(de)鎳(nie)氫(qing)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在(zai)設(she)計(ji)時(shi)(shi)還考(kao)慮到(dao)(dao)了對鎳(nie)鎘(ge)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)的(de)兼(jian)容(rong)，如果想讓手(shou)中的(de)老電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)(chi)再次煥發青春，這類充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)倒是(shi)一個(ge)不錯的(de)選(xuan)擇。

　　除此以外,還有一個小地方要提醒大家注意，有的充電器為方便攜帶(dai)，將插(cha)頭(tou)與機身(shen)做在了一起，不(bu)過在使用時往往會在多用插(cha)線板上占去兩(liang)個甚(shen)至更多插(cha)座的位置(zhi)，對于插(cha)座比(bi)較集(ji)中的朋(peng)友來說，充電(dian)時就(jiu)不(bu)得不(bu)把其他的插(cha)頭(tou)拔掉，很不(bu)方便。如果不(bu)想為充電(dian)器(qi)另行購買一個插(cha)線板的話，就(jiu)應該選擇非(fei)一體(ti)式的充電(dian)器(qi)了。