教你正確使用萬用表測試可充電電池
一般情況下,使用可充電電池時,很難知道較舊的電(dian)(dian)池(chi)是否接(jie)受完全(quan)充電(dian)(dian)。要查看可充電(dian)(dian)電(dian)(dian)池(chi)是否接(jie)受完全(quan)充電(dian)(dian),可在充電(dian)(dian)周期(qi)結束后(hou)使用萬用表對其(qi)進行測試。今天小格給大(da)(da)家分(fen)享一(yi)下關于(yu)使用萬用表測試可充電(dian)(dian)電(dian)(dian)池(chi)的方法,希望可以幫助到大(da)(da)家。
步(bu)1將可充(chong)電(dian)(dian)電(dian)(dian)池放(fang)入其認可的電(dian)(dian)池充(chong)電(dian)(dian)器中,然后讓設備充(chong)電(dian)(dian)一段時間。
步2打開萬用(yong)表(biao)并調整測(ce)量旋鈕以(yi)測(ce)量直流電流,確保將刻度盤(pan)設(she)(she)置(zhi)為(wei)至少測(ce)量電池(chi)能夠提(ti)供的(de)最大電壓數(shu)。如(ru)果萬用(yong)表(biao)上的(de)設(she)(she)置(zhi)與電池(chi)提(ti)供的(de)電壓相(xiang)匹配,請(qing)設(she)(she)置(zhi)轉(zhuan)盤(pan)以(yi)測(ce)量下一個(ge)更高的(de)電壓值。例(li)如(ru),如(ru)果有(you)一個(ge)3.7伏(fu)電池(chi)并且儀(yi)表(biao)具有(you)6伏(fu)設(she)(she)置(zhi),請(qing)將撥盤(pan)設(she)(she)置(zhi)為(wei)測(ce)量6伏(fu)。
步(bu)3將(jiang)儀表(biao)(biao)黑色探頭導線(xian)的(de)(de)金(jin)屬尖(jian)端(duan)(duan)接觸電(dian)(dian)池(chi)的(de)(de)負極(ji)( – )端(duan)(duan)或(huo)端(duan)(duan)子,然后(hou)將(jiang)儀表(biao)(biao)紅色探頭導線(xian)的(de)(de)金(jin)屬尖(jian)端(duan)(duan)觸碰到電(dian)(dian)池(chi)的(de)(de)正極(ji)(+)端(duan)(duan)或(huo)端(duan)(duan)子。將(jiang)它(ta)們(men)接觸電(dian)(dian)池(chi)時(shi),請(qing)觀察萬(wan)用表(biao)(biao)顯示屏(ping)上的(de)(de)電(dian)(dian)壓(ya)(ya)(ya)讀數。如果電(dian)(dian)壓(ya)(ya)(ya)顯著低于完全充(chong)電(dian)(dian)后(hou)電(dian)(dian)池(chi)應具(ju)有(you)的(de)(de)電(dian)(dian)壓(ya)(ya)(ya),則電(dian)(dian)池(chi)可(ke)能接近其有(you)用充(chong)電(dian)(dian)次數的(de)(de)末尾。

 





