怎樣選擇合適的充電器？
用戶選擇充電器時自(zi)然(ran)會有不同的偏好，這里的建議著(zhu)重性能方(fang)面(mian)的選擇(ze)。

1. 充電速度。 常見的充電器采用恒流充電方式，充電速度主要和充電器提供的(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)有關。充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)越大，充電(dian)(dian)(dian)(dian)(dian)速度越快。而充電(dian)(dian)(dian)(dian)(dian)時間的(de)(de)長短除了和(he)充電(dian)(dian)(dian)(dian)(dian)速度有關，還要看電(dian)(dian)(dian)(dian)(dian)池的(de)(de)容量大小(xiao)。需要注意的(de)(de)是，充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)越大，對充電(dian)(dian)(dian)(dian)(dian)器和(he)電(dian)(dian)(dian)(dian)(dian)池的(de)(de)內部體系設計品(pin)質要求越高。一(yi)般情況(kuang)下，充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)越大，充電(dian)(dian)(dian)(dian)(dian)過程中(zhong)可(ke)能(neng)(neng)導(dao)致的(de)(de)發熱越多(duo)，電(dian)(dian)(dian)(dian)(dian)池的(de)(de)性能(neng)(neng)可(ke)能(neng)(neng)受到的(de)(de)損害越大。品(pin)質低劣的(de)(de)充電(dian)(dian)(dian)(dian)(dian)器和(he)電(dian)(dian)(dian)(dian)(dian)池在大電(dian)(dian)(dian)(dian)(dian)流(liu)快速充電(dian)(dian)(dian)(dian)(dian)時很(hen)容易出現(xian)漏液等安全(quan)性能(neng)(neng)方(fang)面的(de)(de)問題(ti)。

2. 充(chong)(chong)(chong)(chong)電(dian)效(xiao)率(lv) 充(chong)(chong)(chong)(chong)電(dian)時向電(dian)池(chi)輸(shu)入的能(neng)量(liang)不是(shi)全部(bu)轉化(hua)為(wei)電(dian)池(chi)儲存的能(neng)量(liang)，還有一(yi)部(bu)分是(shi)分別用于電(dian)池(chi)內(nei)部(bu)的副反應(ying)(ying)和轉化(hua)為(wei)充(chong)(chong)(chong)(chong)電(dian)過程中的熱(re)量(liang)，所以充(chong)(chong)(chong)(chong)電(dian)效(xiao)率(lv)總(zong)是(shi)小于100%的。充(chong)(chong)(chong)(chong)電(dian)時充(chong)(chong)(chong)(chong)電(dian)電(dian)流應(ying)(ying)控制在一(yi)定范圍內(nei)，充(chong)(chong)(chong)(chong)電(dian)電(dian)流太大或(huo)太小，都會(hui)降低充(chong)(chong)(chong)(chong)電(dian)效(xiao)率(lv)。對(dui)于大電(dian)流的快(kuai)速充(chong)(chong)(chong)(chong)電(dian)器來說，還需要對(dui)充(chong)(chong)(chong)(chong)電(dian)器的充(chong)(chong)(chong)(chong)電(dian)方式進行特別的設計，以便提高(gao)充(chong)(chong)(chong)(chong)電(dian)效(xiao)率(lv)。

3. 充電終止控制 小電流的充電器一(yi)(yi)般采(cai)用時間控(kong)制方(fang)式。大電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)快速(su)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)一(yi)(yi)般采(cai)用-△V控(kong)制和(he)其他控(kong)制方(fang)式相結合的(de)(de)設(she)計(ji)，智(zhi)能(neng)化(hua)程度(du)要高(gao)一(yi)(yi)些。 充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)提供(gong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)越大，充(chong)電(dian)(dian)(dian)(dian)(dian)終止控(kong)制方(fang)式越復雜，成本和(he)價格越高(gao)。對于用戶來說(shuo)，要依據自(zi)己的(de)(de)實際情況來進行選(xuan)(xuan)擇(ze)。如果使用的(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容(rong)量(liang)不是很高(gao)，或(huo)者對充(chong)電(dian)(dian)(dian)(dian)(dian)速(su)度(du)并(bing)不特(te)別看(kan)重(zhong)，就(jiu)可(ke)以(yi)選(xuan)(xuan)擇(ze)普通的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)；如果有必要選(xuan)(xuan)擇(ze)價格較高(gao)的(de)(de)快速(su)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)，最(zui)好對充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)和(he)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)性能(neng)多(duo)進行一(yi)(yi)些了解。比如，可(ke)以(yi)提供(gong)1000mA最(zui)大充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)，用來給600mAh容(rong)量(liang)的(de)(de)鎳氫電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)，就(jiu)需要電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)是專(zhuan)門設(she)計(ji)的(de)(de)適(shi)合大電(dian)(dian)(dian)(dian)(dian)流(liu)充(chong)電(dian)(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)，或(huo)者要保證充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)可(ke)以(yi)提供(gong)更小(xiao)的(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)選(xuan)(xuan)擇(ze)。