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(xiao)售(shou)的(de)套裝電(dian)(dian)(dian)(dian)池(chi)工(gong)作穩(wen)定,但(dan)價格較高(gao),因此不(bu)少玩(wan)家都把(ba)目(mu)光瞄準(zhun)了價格相對較低的(de)零售(shou)電(dian)(dian)(dian)(dian)池(chi)或價格更(geng)為便宜(yi)的(de)工(gong)業包裝電(dian)(dian)(dian)(dian)池(chi)--這些電(dian)(dian)(dian)(dian)池(chi)都沒有(you)充(chong)電(dian)(dian)(dian)(dian)器搭(da)(da)配銷(xiao)售(shou)。另外(wai),一部分玩(wan)家電(dian)(dian)(dian)(dian)池(chi)使(shi)用量較大,一個充(chong)電(dian)(dian)(dian)(dian)器已經不(bu)能滿足日常(chang)需求,所(suo)以(yi)另行(xing)購買電(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)器是必(bi)要(yao)的(de)。因而如何去選擇讓自己滿意的(de)鎳(nie)氫電(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)器便成了重要(yao)的(de)事情。
劣質(zhi)(zhi)充電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)危害(hai)(hai): 一(yi)個(ge)充電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)價格一(yi)般都在幾十元到(dao)數(shu)百元之間,比起數(shu)碼相(xiang)機的(de)(de)(de)(de)價格來(lai)(lai)說真是顯(xian)得有(you)些微不足(zu)道。但(dan)這個(ge)小小的(de)(de)(de)(de)充電(dian)(dian)(dian)器(qi)(qi)如(ru)果質(zhi)(zhi)量不過關的(de)(de)(de)(de)話(hua),給用(yong)戶帶(dai)來(lai)(lai)的(de)(de)(de)(de)危害(hai)(hai)卻不小。首先(xian),劣質(zhi)(zhi)充電(dian)(dian)(dian)器(qi)(qi)由(you)(you)于(yu)配件質(zhi)(zhi)量不過關或(huo)電(dian)(dian)(dian)氣性能(neng)不良,自(zi)身容易(yi)出現短路、過熱(re)燒毀等故障,輕(qing)(qing)則(ze)(ze)讓用(yong)戶損失充電(dian)(dian)(dian)器(qi)(qi),重則(ze)(ze)會(hui)引(yin)(yin)起各種災難性的(de)(de)(de)(de)危害(hai)(hai)如(ru)火(huo)災等;其次,劣質(zhi)(zhi)充電(dian)(dian)(dian)器(qi)(qi)由(you)(you)于(yu)輸出電(dian)(dian)(dian)流不穩定或(huo)不符(fu)合規格,會(hui)引(yin)(yin)起電(dian)(dian)(dian)池過熱(re)、充電(dian)(dian)(dian)不完全等故障,輕(qing)(qing)則(ze)(ze)影響使用(yong),重則(ze)(ze)會(hui)引(yin)(yin)起電(dian)(dian)(dian)池爆炸(zha)等危險。由(you)(you)此看來(lai)(lai),充電(dian)(dian)(dian)器(qi)(qi)質(zhi)(zhi)量的(de)(de)(de)(de)好壞的(de)(de)(de)(de)確要引(yin)(yin)起消費者的(de)(de)(de)(de)注(zhu)意。作一(yi)個(ge)形象的(de)(de)(de)(de)比喻,電(dian)(dian)(dian)池好比戰(zhan)場上(shang)的(de)(de)(de)(de)士兵(bing),而(er)充電(dian)(dian)(dian)器(qi)(qi)就好比后勤部(bu)隊--要讓士兵(bing)在火(huo)線上(shang)隨(sui)時保(bao)持良好的(de)(de)(de)(de)戰(zhan)斗狀(zhuang)態,后勤部(bu)隊至關重要。下面就讓我(wo)們一(yi)步步來(lai)(lai)選購充電(dian)(dian)(dian)器(qi)(qi)。
充電(dian)器(qi)的(de)分類(lei)(lei):充電(dian)器(qi)通常按充電(dian)時(shi)間(jian)來分類(lei)(lei),有"快(kuai)速充電(dian)器(qi)(以下簡稱(cheng)快(kuai)充)"和(he)"慢(man)速充電(dian)器(qi)(以下簡稱(cheng)慢(man)充)"兩種(zhong)。鎳氫電(dian)池的(de)充電(dian)時(shi)間(jian)基本上可(ke)按下列公式計算:充電(dian)時(shi)間(jian)(小時(shi))≈效率系數×容量(mAh)÷充電(dian)電(dian)流(mA) 注:效率系數為1.2~1.5之間(jian)的(de)一個不定數,因不同充電(dian)器(qi)而異(yi)。
慢(man)充(chong)一般(ban)采(cai)(cai)用恒流方式充(chong)電(dian)(dian)(dian),且在電(dian)(dian)(dian)池(chi)充(chong)滿后自(zi)動轉為涓(juan)流充(chong)電(dian)(dian)(dian)狀態(tai)。慢(man)充(chong)的優點(dian)是(shi)(shi)電(dian)(dian)(dian)路設計簡單,易于實(shi)現,價格也較低(di);由(you)于采(cai)(cai)用小電(dian)(dian)(dian)流恒流充(chong)電(dian)(dian)(dian),有效地(di)降(jiang)低(di)了電(dian)(dian)(dian)池(chi)在充(chong)電(dian)(dian)(dian)過程中(zhong)的發熱量,對延長(chang)電(dian)(dian)(dian)池(chi)的使用壽命很(hen)有好處。缺點(dian)就是(shi)(shi)充(chong)電(dian)(dian)(dian)時間太長(chang),特別是(shi)(shi)電(dian)(dian)(dian)池(chi)數量較多(duo)的情(qing)況下有點(dian)力不(bu)從心(xin)。
快充(chong)(chong)(chong)(chong)一(yi)(yi)(yi)般都采用脈(mo)沖大(da)(da)電(dian)(dian)(dian)流充(chong)(chong)(chong)(chong)電(dian)(dian)(dian),但由于電(dian)(dian)(dian)池在大(da)(da)電(dian)(dian)(dian)流充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過(guo)程中(zhong)會產生極化(hua)反應,導致電(dian)(dian)(dian)池溫度(du)迅(xun)速升高(gao),充(chong)(chong)(chong)(chong)滿(man)后若再繼(ji)續加電(dian)(dian)(dian)就有(you)(you)可能發生爆(bao)炸和燃燒,所以快充(chong)(chong)(chong)(chong)還(huan)采用專(zhuan)用芯片來(lai)控制充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過(guo)程,實(shi)時監控電(dian)(dian)(dian)池電(dian)(dian)(dian)量(liang),一(yi)(yi)(yi)旦充(chong)(chong)(chong)(chong)滿(man)就自動停止充(chong)(chong)(chong)(chong)電(dian)(dian)(dian),使整個充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過(guo)程變得(de)安全(quan)、高(gao)效。快充(chong)(chong)(chong)(chong)適合(he)電(dian)(dian)(dian)池數量(liang)較多或(huo)心(xin)急的玩家。缺點便(bian)是無法避免的大(da)(da)發熱量(liang),對(dui)電(dian)(dian)(dian)池壽命有(you)(you)一(yi)(yi)(yi)定的影響.價格(ge)也比慢充(chong)(chong)(chong)(chong)貴一(yi)(yi)(yi)些(xie)。
類型:前文提到的(de)(de)(de)(de)快充(chong)(chong)和慢充(chong)(chong),也是(shi)挑選(xuan)充(chong)(chong)電(dian)器的(de)(de)(de)(de)一個(ge)(ge)重要(yao)(yao)標準(zhun)。兩者比(bi)較(jiao)起來(lai),快充(chong)(chong)的(de)(de)(de)(de)缺點是(shi)對(dui)電(dian)池的(de)(de)(de)(de)壽命(ming)(ming)有所(suo)(suo)影響以(yi)及價格較(jiao)高。不過在這(zhe)個(ge)(ge)效率至上的(de)(de)(de)(de)時代,快充(chong)(chong)的(de)(de)(de)(de)流(liu)行趨勢越來(lai)越明顯,因(yin)為使用快充(chong)(chong)所(suo)(suo)節省的(de)(de)(de)(de)時間遠(yuan)比(bi)電(dian)池所(suo)(suo)減少的(de)(de)(de)(de)壽命(ming)(ming)來(lai)得(de)重要(yao)(yao)。況(kuang)且(qie)現在充(chong)(chong)電(dian)電(dian)池的(de)(de)(de)(de)價格也越來(lai)越低,所(suo)(suo)以(yi)在資金(jin)允許的(de)(de)(de)(de)情(qing)況(kuang)下,最好選(xuan)擇快充(chong)(chong)。 (質量較(jiao)差的(de)(de)(de)(de)充(chong)(chong)電(dian)器內部構造(zao)極為簡(jian)單,電(dian)路板的(de)(de)(de)(de)工藝(yi)更(geng)是(shi)糟糕(gao),因(yin)此如果(guo)是(shi)買非名(ming)牌充(chong)(chong)電(dian)器的(de)(de)(de)(de)話(hua),開蓋看看還(huan)是(shi)有必要(yao)(yao)的(de)(de)(de)(de))
外觀(guan)及(ji)內在(zai)品(pin)質(zhi):優秀的(de)(de)(de)(de)(de)做工在(zai)很(hen)大程度上也是廠商實力的(de)(de)(de)(de)(de)體現(xian),而用料(liao)的(de)(de)(de)(de)(de)質(zhi)量(liang)則是安全使用的(de)(de)(de)(de)(de)保障。我們在(zai)購(gou)(gou)買時,可注意一(yi)下充(chong)(chong)電(dian)(dian)器外觀(guan)的(de)(de)(de)(de)(de)光澤度、邊角和小地(di)方(fang)的(de)(de)(de)(de)(de)精細程度;掂(dian)掂(dian)分(fen)量(liang)做一(yi)下比較(jiao),一(yi)般(ban)來說同(tong)(tong)類(lei)型(xing)產(chan)品(pin)偷工減料(liao)者重量(liang)相對(dui)較(jiao)輕。須要(yao)注意的(de)(de)(de)(de)(de)是,快充(chong)(chong)由于使用了控制芯片以(yi)及(ji)開(kai)(kai)關(guan)電(dian)(dian)源,重量(liang)有(you)可能(neng)(neng)會比慢充(chong)(chong)輕,所以(yi)掂(dian)重量(liang)這(zhe)種差別(bie)方(fang)法最適合于同(tong)(tong)一(yi)類(lei)型(xing)的(de)(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)器。在(zai)條(tiao)件(jian)允許的(de)(de)(de)(de)(de)情況下可以(yi)要(yao)求商家將充(chong)(chong)電(dian)(dian)器打(da)開(kai)(kai)觀(guan)看(kan)內部結構(gou),看(kan)看(kan)內部電(dian)(dian)路(lu)板電(dian)(dian)子(zi)元件(jian)的(de)(de)(de)(de)(de)排列、焊(han)接工藝等方(fang)面,以(yi)確保貨真價實。另外,最好(hao)將自己使用的(de)(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)電(dian)(dian)池(chi)帶上,在(zai)商家處充(chong)(chong)電(dian)(dian)30分(fen)鐘左右,觀(guan)察(cha)一(yi)下電(dian)(dian)池(chi)的(de)(de)(de)(de)(de)發熱(re)量(liang)--質(zhi)量(liang)好(hao)的(de)(de)(de)(de)(de)充(chong)(chong)電(dian)(dian)器能(neng)(neng)夠有(you)效地(di)控制發熱(re)量(liang),而劣質(zhi)充(chong)(chong)電(dian)(dian)器則有(you)可能(neng)(neng)將電(dian)(dian)池(chi)充(chong)(chong)得滾(gun)燙--這(zhe)種現(xian)象特別(bie)容易出(chu)現(xian)在(zai)劣質(zhi)快充(chong)(chong)上。這(zhe)樣的(de)(de)(de)(de)(de)產(chan)品(pin)一(yi)定不能(neng)(neng)購(gou)(gou)買。
易用(yong)性:為了日后使用(yong)更加方便,在選(xuan)擇充電器(qi)時最好多考慮一下產品(pin)的易用(yong)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時還考慮(lv)到了對鎳鎘電(dian)(dian)(dian)池(chi)的兼容,如果想讓手中的老電(dian)(dian)(dian)池(chi)再(zai)次煥發青春,這類充(chong)電(dian)(dian)(dian)器倒是一(yi)個不錯的選擇。
除(chu)此以(yi)外,還有(you)一個小(xiao)地方(fang)要提醒大家注意,有(you)的(de)充電(dian)器(qi)為方(fang)便攜帶,將插(cha)頭與機身做(zuo)在了一起,不過在使(shi)用時往(wang)往(wang)會在多用插(cha)線板上占(zhan)去(qu)兩個甚至(zhi)更多插(cha)座的(de)位置,對于插(cha)座比(bi)較集(ji)中的(de)朋友來(lai)說,充電(dian)時就不得不把(ba)其他的(de)插(cha)頭拔掉,很不方(fang)便。如果不想為充電(dian)器(qi)另行購買一個插(cha)線板的(de)話,就應該選擇非一體式的(de)充電(dian)器(qi)了。