數(shu)(shu)(shu)碼相機的(de)迅速普及在無形中(zhong)也帶動了鎳氫(qing)充電(dian)(dian)電(dian)(dian)池的(de)高(gao)速發展。由于數(shu)(shu)(shu)碼相機的(de)工作電(dian)(dian)流(liu)普遍較大，也比(bi)較耗(hao)電(dian)(dian)，普通的(de)堿性電(dian)(dian)池已經難(nan)以長時間勝(sheng)任數(shu)(shu)(shu)碼相機的(de)動力(li)之源(yuan)。而(er)(er)鎳氫(qing)充電(dian)(dian)電(dian)(dian)池不(bu)但容量(liang)較大，還(huan)能(neng)提(ti)供較大的(de)工作電(dian)(dian)流(liu)，又能(neng)重復使用且(qie)環保，自然而(er)(er)然地成為了大部(bu)分數(shu)(shu)(shu)碼相機玩(wan)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)充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)的(de)(de)危(wei)(wei)害(hai)： 一(yi)個(ge)充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)的(de)(de)價格一(yi)般都在(zai)幾十(shi)元(yuan)到數百元(yuan)之間(jian)，比(bi)起(qi)數碼相機的(de)(de)價格來(lai)(lai)說真(zhen)是(shi)顯得(de)有些微不(bu)(bu)足道。但這個(ge)小小的(de)(de)充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)如果質(zhi)量(liang)不(bu)(bu)過(guo)(guo)關(guan)的(de)(de)話，給用(yong)(yong)戶帶(dai)來(lai)(lai)的(de)(de)危(wei)(wei)害(hai)卻不(bu)(bu)小。首(shou)先(xian)，劣(lie)質(zhi)充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)由于配件質(zhi)量(liang)不(bu)(bu)過(guo)(guo)關(guan)或電(dian)(dian)氣(qi)性能不(bu)(bu)良，自身(shen)容(rong)易出現(xian)短路、過(guo)(guo)熱(re)燒毀(hui)等故障，輕(qing)則(ze)讓(rang)用(yong)(yong)戶損失充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)，重則(ze)會(hui)引(yin)起(qi)各種災難性的(de)(de)危(wei)(wei)害(hai)如火災等；其次，劣(lie)質(zhi)充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)由于輸出電(dian)(dian)流不(bu)(bu)穩定或不(bu)(bu)符合(he)規格，會(hui)引(yin)起(qi)電(dian)(dian)池過(guo)(guo)熱(re)、充(chong)電(dian)(dian)不(bu)(bu)完全等故障，輕(qing)則(ze)影響使用(yong)(yong)，重則(ze)會(hui)引(yin)起(qi)電(dian)(dian)池爆炸等危(wei)(wei)險(xian)。由此看來(lai)(lai)，充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)質(zhi)量(liang)的(de)(de)好(hao)壞的(de)(de)確要引(yin)起(qi)消(xiao)費者(zhe)的(de)(de)注意。作(zuo)一(yi)個(ge)形象的(de)(de)比(bi)喻，電(dian)(dian)池好(hao)比(bi)戰(zhan)場(chang)上的(de)(de)士兵，而充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)就(jiu)好(hao)比(bi)后勤部隊--要讓(rang)士兵在(zai)火線上隨時保持良好(hao)的(de)(de)戰(zhan)斗狀態(tai)，后勤部隊至關(guan)重要。下(xia)面就(jiu)讓(rang)我(wo)們一(yi)步(bu)步(bu)來(lai)(lai)選購(gou)充(chong)電(dian)(dian)器(qi)(qi)(qi)(qi)。

　　充電器的分(fen)類：充(chong)(chong)電(dian)(dian)(dian)器(qi)通常按(an)充(chong)(chong)電(dian)(dian)(dian)時(shi)(shi)間(jian)(jian)來分(fen)類，有"快(kuai)速(su)充(chong)(chong)電(dian)(dian)(dian)器(qi)（以下簡(jian)(jian)稱(cheng)快(kuai)充(chong)(chong)）"和(he)"慢(man)速(su)充(chong)(chong)電(dian)(dian)(dian)器(qi)（以下簡(jian)(jian)稱(cheng)慢(man)充(chong)(chong)）"兩種。鎳氫電(dian)(dian)(dian)池的充(chong)(chong)電(dian)(dian)(dian)時(shi)(shi)間(jian)(jian)基本上可(ke)按(an)下列(lie)公式計(ji)算：充(chong)(chong)電(dian)(dian)(dian)時(shi)(shi)間(jian)(jian)（小時(shi)(shi)）≈效率系數×容量（mAh）÷充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(mA) 注(zhu)：效率系數為1.2～1.5之間(jian)(jian)的一個不定數，因不同充(chong)(chong)電(dian)(dian)(dian)器(qi)而(er)異。

　　慢充一般采用(yong)(yong)恒流方式充電(dian)，且(qie)在(zai)電(dian)池(chi)(chi)充滿后自(zi)動(dong)轉為涓流充電(dian)狀態(tai)。慢充的(de)優(you)點是電(dian)路設計簡單，易于(yu)實現，價格也(ye)較低(di);由(you)于(yu)采用(yong)(yong)小電(dian)流恒流充電(dian)，有效地降低(di)了電(dian)池(chi)(chi)在(zai)充電(dian)過程中的(de)發熱量(liang)，對延長(chang)電(dian)池(chi)(chi)的(de)使用(yong)(yong)壽命很有好處(chu)。缺點就是充電(dian)時間太(tai)長(chang),特別是電(dian)池(chi)(chi)數量(liang)較多的(de)情況下有點力(li)不從心。

　　快充(chong)(chong)一般都采用(yong)(yong)脈(mo)沖大(da)電(dian)(dian)(dian)(dian)(dian)流充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)，但由(you)于電(dian)(dian)(dian)(dian)(dian)池在(zai)大(da)電(dian)(dian)(dian)(dian)(dian)流充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)中會產(chan)生極化(hua)反應，導致電(dian)(dian)(dian)(dian)(dian)池溫度(du)迅(xun)速(su)升高，充(chong)(chong)滿(man)后(hou)若(ruo)再繼(ji)續(xu)加電(dian)(dian)(dian)(dian)(dian)就有(you)(you)可(ke)能(neng)發生爆炸和(he)燃燒，所以快充(chong)(chong)還采用(yong)(yong)專用(yong)(yong)芯(xin)片來控制充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)，實(shi)時(shi)監控電(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)量，一旦充(chong)(chong)滿(man)就自(zi)動停止充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)，使整個充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)變得安全、高效(xiao)。快充(chong)(chong)適(shi)合電(dian)(dian)(dian)(dian)(dian)池數量較多(duo)或心(xin)急的(de)(de)玩家。缺(que)點(dian)便(bian)是無法避免的(de)(de)大(da)發熱(re)量，對電(dian)(dian)(dian)(dian)(dian)池壽命(ming)有(you)(you)一定的(de)(de)影響.價(jia)格也比慢充(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(de)(de)一個重(zhong)要(yao)標準(zhun)。兩者比較起(qi)來(lai)，快(kuai)充(chong)(chong)的(de)(de)缺(que)點是(shi)對電(dian)池(chi)的(de)(de)壽命有所影(ying)響以(yi)及價(jia)格(ge)(ge)較高。不過在這個效(xiao)率至上的(de)(de)時代，快(kuai)充(chong)(chong)的(de)(de)流行趨(qu)勢(shi)越(yue)來(lai)越(yue)明顯(xian)，因為使(shi)用快(kuai)充(chong)(chong)所節省(sheng)的(de)(de)時間遠比電(dian)池(chi)所減少(shao)的(de)(de)壽命來(lai)得重(zhong)要(yao)。況(kuang)且現在充(chong)(chong)電(dian)電(dian)池(chi)的(de)(de)價(jia)格(ge)(ge)也越(yue)來(lai)越(yue)低，所以(yi)在資金允許(xu)的(de)(de)情(qing)況(kuang)下，最好選擇快(kuai)充(chong)(chong)。 （質量較差(cha)的(de)(de)充(chong)(chong)電(dian)器內部構造(zao)極為簡單(dan)，電(dian)路板的(de)(de)工(gong)藝更是(shi)糟(zao)糕，因此如果是(shi)買非名牌充(chong)(chong)電(dian)器的(de)(de)話，開蓋看(kan)看(kan)還(huan)是(shi)有必要(yao)的(de)(de)）

　　外(wai)觀及內在品質(zhi)(zhi)：優(you)秀(xiu)的(de)(de)(de)做工(gong)在很大程度(du)上(shang)也是(shi)(shi)廠商實力的(de)(de)(de)體現，而用(yong)(yong)料的(de)(de)(de)質(zhi)(zhi)量(liang)則是(shi)(shi)安全使(shi)用(yong)(yong)的(de)(de)(de)保(bao)(bao)障。我們在購買時，可注意(yi)一(yi)(yi)下(xia)充(chong)(chong)(chong)電(dian)器(qi)(qi)外(wai)觀的(de)(de)(de)光澤度(du)、邊(bian)角和小地方的(de)(de)(de)精細(xi)程度(du)；掂掂分量(liang)做一(yi)(yi)下(xia)比較，一(yi)(yi)般來(lai)說同(tong)(tong)類(lei)型產(chan)品偷工(gong)減料者重量(liang)相(xiang)對較輕(qing)。須要(yao)注意(yi)的(de)(de)(de)是(shi)(shi)，快充(chong)(chong)(chong)由于(yu)使(shi)用(yong)(yong)了控(kong)制芯片以(yi)及開關電(dian)源|穩(wen)壓器(qi)(qi)，重量(liang)有(you)(you)可能會比慢充(chong)(chong)(chong)輕(qing)，所(suo)以(yi)掂重量(liang)這種差別方法(fa)最(zui)適合于(yu)同(tong)(tong)一(yi)(yi)類(lei)型的(de)(de)(de)充(chong)(chong)(chong)電(dian)器(qi)(qi)。在條件允許的(de)(de)(de)情(qing)況下(xia)可以(yi)要(yao)求商家將充(chong)(chong)(chong)電(dian)器(qi)(qi)打(da)開觀看內部結構，看看內部電(dian)路板電(dian)子元件的(de)(de)(de)排列、焊接工(gong)藝等方面(mian)，以(yi)確保(bao)(bao)貨真價(jia)實。另外(wai),最(zui)好將自己使(shi)用(yong)(yong)的(de)(de)(de)充(chong)(chong)(chong)電(dian)電(dian)池(chi)帶上(shang)，在商家處充(chong)(chong)(chong)電(dian)30分鐘(zhong)左(zuo)右,觀察一(yi)(yi)下(xia)電(dian)池(chi)的(de)(de)(de)發(fa)熱(re)量(liang)--質(zhi)(zhi)量(liang)好的(de)(de)(de)充(chong)(chong)(chong)電(dian)器(qi)(qi)能夠有(you)(you)效地控(kong)制發(fa)熱(re)量(liang),而劣(lie)(lie)質(zhi)(zhi)充(chong)(chong)(chong)電(dian)器(qi)(qi)則有(you)(you)可能將電(dian)池(chi)充(chong)(chong)(chong)得(de)滾燙--這種現象(xiang)特(te)別容易出現在劣(lie)(lie)質(zhi)(zhi)快充(chong)(chong)(chong)上(shang)。這樣的(de)(de)(de)產(chan)品一(yi)(yi)定不能購買。

　　易(yi)用性：為了(le)日后(hou)使用更加方便，在選擇充電器(qi)時最好多考(kao)慮一下產品(pin)的(de)易(yi)用性。

　　有的充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)只能(neng)為AA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，而有些充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)不(bu)(bu)但能(neng)充(chong)(chong)AA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)，還可以(yi)為AAA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，如果有多(duo)(duo)(duo)種型號的充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)，可以(yi)選(xuan)擇(ze)這(zhe)種充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)。 常見的充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)般可以(yi)同(tong)時(shi)(shi)(shi)(shi)(shi)為4節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，手中(zhong)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)比較多(duo)(duo)(duo)，同(tong)時(shi)(shi)(shi)(shi)(shi)又不(bu)(bu)愿意為大量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)而長時(shi)(shi)(shi)(shi)(shi)間(jian)等(deng)待(dai)的用(yong)戶(hu)(hu)，可以(yi)選(xuan)擇(ze)有6個(ge)或8個(ge)甚至(zhi)更多(duo)(duo)(duo)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)插槽的充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，當然，這(zhe)類(lei)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的體積會大一(yi)些，不(bu)(bu)便攜帶，價格也自然會高一(yi)些。 很(hen)多(duo)(duo)(duo)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)由于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路設計(ji)的關系,只能(neng)為偶數節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)如2節(jie)、4節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)成對地充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，這(zhe)對于某些使用(yong)單個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的用(yong)戶(hu)(hu)來說很(hen)不(bu)(bu)方便，于是(shi)市場有一(yi)些充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路設計(ji)時(shi)(shi)(shi)(shi)(shi)考(kao)慮到了這(zhe)一(yi)問題，它們可以(yi)為1節(jie)、3節(jie)等(deng)奇數節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。在(zai)購買時(shi)(shi)(shi)(shi)(shi)建議選(xuan)擇(ze)這(zhe)類(lei)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，以(yi)便日后的使用(yong)。由于鎳(nie)氫和鎳(nie)鎘電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的結(jie)構相近，所以(yi)有的鎳(nie)氫電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)在(zai)設計(ji)時(shi)(shi)(shi)(shi)(shi)還考(kao)慮到了對鎳(nie)鎘電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的兼(jian)容，如果想讓手中(zhong)的老電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)再次煥發青春，這(zhe)類(lei)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)倒是(shi)一(yi)個(ge)不(bu)(bu)錯的選(xuan)擇(ze)。

　　除此以外,還有一個小地方要提醒大家注意，有的充電器為方便攜帶，將(jiang)插頭與機身(shen)做在了(le)一(yi)起，不(bu)(bu)過在使用時往(wang)往(wang)會在多用插線板(ban)上占去兩個甚(shen)至更多插座(zuo)的(de)(de)位置，對于(yu)插座(zuo)比(bi)較集中的(de)(de)朋友來說，充(chong)(chong)電時就不(bu)(bu)得不(bu)(bu)把其他的(de)(de)插頭拔掉(diao)，很不(bu)(bu)方便。如果(guo)不(bu)(bu)想為充(chong)(chong)電器(qi)另行購(gou)買一(yi)個插線板(ban)的(de)(de)話，就應(ying)該選(xuan)擇非一(yi)體式的(de)(de)充(chong)(chong)電器(qi)了(le)。