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怎樣購買鎳氫電池充電器?

       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(da)(da)配銷售的(de)套裝(zhuang)電(dian)(dian)池工作穩(wen)定(ding),但價(jia)格較(jiao)高(gao),因此不(bu)少玩家都把目光瞄準了(le)價(jia)格相對較(jiao)低的(de)零售電(dian)(dian)池或價(jia)格更為便(bian)(bian)宜的(de)工業包裝(zhuang)電(dian)(dian)池--這(zhe)些電(dian)(dian)池都沒有充(chong)電(dian)(dian)器(qi)(qi)搭(da)(da)配銷售。另(ling)(ling)外,一部分玩家電(dian)(dian)池使用量較(jiao)大,一個(ge)充(chong)電(dian)(dian)器(qi)(qi)已(yi)經(jing)不(bu)能滿足日常需求,所以另(ling)(ling)行購買電(dian)(dian)池充(chong)電(dian)(dian)器(qi)(qi)是必要的(de)。因而(er)如何去(qu)選擇(ze)讓自己(ji)滿意(yi)的(de)鎳氫電(dian)(dian)池充(chong)電(dian)(dian)器(qi)(qi)便(bian)(bian)成了(le)重要的(de)事情(qing)。

       劣(lie)質(zhi)(zhi)(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)的(de)危(wei)害(hai): 一(yi)個(ge)充(chong)(chong)電(dian)(dian)(dian)器(qi)的(de)價(jia)格一(yi)般都在(zai)幾(ji)十元到數百(bai)元之(zhi)間,比(bi)起(qi)(qi)數碼相機的(de)價(jia)格來說(shuo)真(zhen)是顯(xian)得有些(xie)微不(bu)足道(dao)。但這(zhe)個(ge)小(xiao)小(xiao)的(de)充(chong)(chong)電(dian)(dian)(dian)器(qi)如果質(zhi)(zhi)(zhi)量不(bu)過(guo)(guo)(guo)關(guan)的(de)話,給用戶(hu)帶來的(de)危(wei)害(hai)卻不(bu)小(xiao)。首(shou)先,劣(lie)質(zhi)(zhi)(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)由于配件質(zhi)(zhi)(zhi)量不(bu)過(guo)(guo)(guo)關(guan)或電(dian)(dian)(dian)氣性(xing)能不(bu)良(liang),自身容(rong)易(yi)出(chu)現短路(lu)、過(guo)(guo)(guo)熱燒毀(hui)等(deng)故障,輕則讓(rang)用戶(hu)損失充(chong)(chong)電(dian)(dian)(dian)器(qi),重(zhong)則會(hui)引起(qi)(qi)各種災難性(xing)的(de)危(wei)害(hai)如火災等(deng);其次,劣(lie)質(zhi)(zhi)(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)由于輸(shu)出(chu)電(dian)(dian)(dian)流不(bu)穩定或不(bu)符合規(gui)格,會(hui)引起(qi)(qi)電(dian)(dian)(dian)池(chi)過(guo)(guo)(guo)熱、充(chong)(chong)電(dian)(dian)(dian)不(bu)完全等(deng)故障,輕則影響使(shi)用,重(zhong)則會(hui)引起(qi)(qi)電(dian)(dian)(dian)池(chi)爆炸等(deng)危(wei)險。由此看來,充(chong)(chong)電(dian)(dian)(dian)器(qi)質(zhi)(zhi)(zhi)量的(de)好(hao)(hao)(hao)壞的(de)確要引起(qi)(qi)消費(fei)者的(de)注意(yi)。作一(yi)個(ge)形象的(de)比(bi)喻,電(dian)(dian)(dian)池(chi)好(hao)(hao)(hao)比(bi)戰場(chang)上(shang)的(de)士兵,而(er)充(chong)(chong)電(dian)(dian)(dian)器(qi)就好(hao)(hao)(hao)比(bi)后勤(qin)部(bu)隊--要讓(rang)士兵在(zai)火線(xian)上(shang)隨時保持良(liang)好(hao)(hao)(hao)的(de)戰斗狀態(tai),后勤(qin)部(bu)隊至關(guan)重(zhong)要。下面就讓(rang)我們一(yi)步步來選購充(chong)(chong)電(dian)(dian)(dian)器(qi)。

      充(chong)電(dian)(dian)器(qi)的分類(lei)(lei):充(chong)電(dian)(dian)器(qi)通常按充(chong)電(dian)(dian)時(shi)間來(lai)分類(lei)(lei),有"快速充(chong)電(dian)(dian)器(qi)(以(yi)下(xia)簡稱快充(chong))"和"慢速充(chong)電(dian)(dian)器(qi)(以(yi)下(xia)簡稱慢充(chong))"兩種。鎳(nie)氫電(dian)(dian)池的充(chong)電(dian)(dian)時(shi)間基本上(shang)可按下(xia)列公式計算(suan):充(chong)電(dian)(dian)時(shi)間(小時(shi))≈效率(lv)系數×容(rong)量(mAh)÷充(chong)電(dian)(dian)電(dian)(dian)流(liu)(mA)  注:效率(lv)系數為1.2~1.5之間的一個(ge)不定數,因(yin)不同充(chong)電(dian)(dian)器(qi)而異(yi)。

      慢充一般(ban)采用(yong)恒流(liu)方式充電(dian),且在電(dian)池充滿后自動轉為(wei)涓流(liu)充電(dian)狀態。慢充的(de)優(you)點是(shi)(shi)電(dian)路(lu)設計簡(jian)單,易于實現,價格也較低;由于采用(yong)小(xiao)電(dian)流(liu)恒流(liu)充電(dian),有效地降(jiang)低了電(dian)池在充電(dian)過程中(zhong)的(de)發熱量(liang),對延長電(dian)池的(de)使用(yong)壽命很有好(hao)處。缺點就是(shi)(shi)充電(dian)時間太長,特別(bie)是(shi)(shi)電(dian)池數量(liang)較多的(de)情況下(xia)有點力不從心。

       快充(chong)(chong)(chong)(chong)一(yi)般都采(cai)用脈(mo)沖(chong)大電(dian)(dian)流(liu)充(chong)(chong)(chong)(chong)電(dian)(dian),但由于電(dian)(dian)池在大電(dian)(dian)流(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)過(guo)程中會產生(sheng)極化反(fan)應,導致電(dian)(dian)池溫度(du)迅(xun)速升高,充(chong)(chong)(chong)(chong)滿后若再繼續加電(dian)(dian)就有(you)可能發(fa)生(sheng)爆炸和(he)燃(ran)燒,所以快充(chong)(chong)(chong)(chong)還采(cai)用專用芯(xin)片(pian)來控(kong)(kong)制充(chong)(chong)(chong)(chong)電(dian)(dian)過(guo)程,實時(shi)監控(kong)(kong)電(dian)(dian)池電(dian)(dian)量(liang)(liang),一(yi)旦(dan)充(chong)(chong)(chong)(chong)滿就自動停止充(chong)(chong)(chong)(chong)電(dian)(dian),使整個(ge)充(chong)(chong)(chong)(chong)電(dian)(dian)過(guo)程變得(de)安全、高效(xiao)。快充(chong)(chong)(chong)(chong)適合(he)電(dian)(dian)池數量(liang)(liang)較多或心急的玩家(jia)。缺(que)點便是(shi)無(wu)法(fa)避(bi)免的大發(fa)熱量(liang)(liang),對電(dian)(dian)池壽命有(you)一(yi)定的影響.價格也比慢(man)充(chong)(chong)(chong)(chong)貴一(yi)些。

       類型:前文提到的(de)(de)(de)快(kuai)充(chong)(chong)和慢充(chong)(chong),也是(shi)挑選充(chong)(chong)電(dian)器(qi)的(de)(de)(de)一個重要標準。兩者比較(jiao)起(qi)來(lai),快(kuai)充(chong)(chong)的(de)(de)(de)缺點是(shi)對電(dian)池的(de)(de)(de)壽(shou)命有(you)所(suo)(suo)(suo)影(ying)響以及價格(ge)較(jiao)高。不過在(zai)這個效率至上(shang)的(de)(de)(de)時(shi)代,快(kuai)充(chong)(chong)的(de)(de)(de)流行(xing)趨勢越來(lai)越明顯,因為使用快(kuai)充(chong)(chong)所(suo)(suo)(suo)節省的(de)(de)(de)時(shi)間(jian)遠(yuan)比電(dian)池所(suo)(suo)(suo)減(jian)少(shao)的(de)(de)(de)壽(shou)命來(lai)得重要。況且現在(zai)充(chong)(chong)電(dian)電(dian)池的(de)(de)(de)價格(ge)也越來(lai)越低(di),所(suo)(suo)(suo)以在(zai)資(zi)金(jin)允許(xu)的(de)(de)(de)情況下(xia),最好選擇快(kuai)充(chong)(chong)。 (質量(liang)較(jiao)差的(de)(de)(de)充(chong)(chong)電(dian)器(qi)內(nei)部構造極為簡單,電(dian)路板(ban)的(de)(de)(de)工藝更是(shi)糟糕(gao),因此如(ru)果是(shi)買(mai)非名牌充(chong)(chong)電(dian)器(qi)的(de)(de)(de)話,開(kai)蓋看(kan)(kan)看(kan)(kan)還(huan)是(shi)有(you)必(bi)要的(de)(de)(de))

      外觀(guan)及(ji)內(nei)在(zai)品質:優秀(xiu)的(de)(de)做(zuo)工(gong)在(zai)很大程(cheng)度(du)上也是(shi)廠商(shang)實(shi)力的(de)(de)體現(xian),而(er)用料(liao)的(de)(de)質量(liang)(liang)則(ze)是(shi)安全使(shi)(shi)用的(de)(de)保障(zhang)。我(wo)們在(zai)購買(mai)時,可(ke)注(zhu)意(yi)一(yi)(yi)下(xia)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)外觀(guan)的(de)(de)光澤度(du)、邊角和(he)小(xiao)地(di)方的(de)(de)精細程(cheng)度(du);掂(dian)掂(dian)分量(liang)(liang)做(zuo)一(yi)(yi)下(xia)比(bi)(bi)較,一(yi)(yi)般來說(shuo)同類型(xing)產品偷工(gong)減(jian)料(liao)者重(zhong)量(liang)(liang)相對較輕(qing)。須要注(zhu)意(yi)的(de)(de)是(shi),快(kuai)(kuai)充(chong)(chong)由于使(shi)(shi)用了控制芯(xin)片以及(ji)開關(guan)電(dian)(dian)(dian)(dian)源,重(zhong)量(liang)(liang)有(you)可(ke)能會比(bi)(bi)慢充(chong)(chong)輕(qing),所以掂(dian)重(zhong)量(liang)(liang)這(zhe)種(zhong)差別方法最適合于同一(yi)(yi)類型(xing)的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)。在(zai)條(tiao)件(jian)允許的(de)(de)情況(kuang)下(xia)可(ke)以要求(qiu)商(shang)家將(jiang)(jiang)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)打(da)開觀(guan)看內(nei)部結構,看看內(nei)部電(dian)(dian)(dian)(dian)路板電(dian)(dian)(dian)(dian)子元件(jian)的(de)(de)排列、焊接工(gong)藝等方面(mian),以確保貨(huo)真價實(shi)。另外,最好將(jiang)(jiang)自己使(shi)(shi)用的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池帶上,在(zai)商(shang)家處充(chong)(chong)電(dian)(dian)(dian)(dian)30分鐘左右,觀(guan)察一(yi)(yi)下(xia)電(dian)(dian)(dian)(dian)池的(de)(de)發熱量(liang)(liang)--質量(liang)(liang)好的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)能夠有(you)效地(di)控制發熱量(liang)(liang),而(er)劣質充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)則(ze)有(you)可(ke)能將(jiang)(jiang)電(dian)(dian)(dian)(dian)池充(chong)(chong)得(de)滾燙--這(zhe)種(zhong)現(xian)象特別容易(yi)出(chu)現(xian)在(zai)劣質快(kuai)(kuai)充(chong)(chong)上。這(zhe)樣的(de)(de)產品一(yi)(yi)定(ding)不能購買(mai)。

    易(yi)用(yong)性(xing)(xing):為了日(ri)后使用(yong)更加方便,在選擇(ze)充電器時最好(hao)多(duo)考慮(lv)一下(xia)產品的易(yi)用(yong)性(xing)(xing)。

    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(zai)設(she)計時(shi)還考慮到了對鎳(nie)鎘電池(chi)的(de)兼容,如果(guo)想讓手中的(de)老電池(chi)再次煥(huan)發青春,這類充電器倒是一個不(bu)錯的(de)選擇。

      除此以(yi)外(wai),還有一(yi)(yi)個(ge)小地方(fang)要提醒大家(jia)注意,有的充(chong)電器為方(fang)便(bian)攜帶,將插頭與機身(shen)做(zuo)在了一(yi)(yi)起,不過在使(shi)用時往往會在多用插線板上占去兩個(ge)甚至更多插座(zuo)的位置,對于插座(zuo)比(bi)較集中(zhong)的朋(peng)友來(lai)說(shuo),充(chong)電時就(jiu)不得不把其他(ta)的插頭拔掉,很不方(fang)便(bian)。如果(guo)不想為充(chong)電器另行購買一(yi)(yi)個(ge)插線板的話,就(jiu)應該選擇非一(yi)(yi)體式的充(chong)電器了。

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