自制一個簡單實用的鋰電池充電器改變圖中4歐的電(dian)(dian)阻可(ke)以改變充電(dian)(dian)電(dian)(dian)流，D1是電(dian)(dian)源(yuan)指(zhi)示，D2是充電(dian)(dian)指(zhi)示兼限流。調(diao)試時6.8K電(dian)(dian)阻用一(yi)10K微(wei)調(diao)電(dian)(dian)阻代(dai)換，用數字(zi)表監(jian)視(shi)電(dian)(dian)池電(dian)(dian)壓到4.2V時，調(diao)10K微(wei)調(diao)電(dian)(dian)阻到6.8K即可(ke)。

 自制一個簡單實用的 
    改變圖中4歐的電阻可以改變充電電流，D1是電源指示，D2是充電指示兼限流。
    調(diao)試時6.8K電(dian)阻用一10K微調(diao)電(dian)阻代換，用數(shu)字表監(jian)視電(dian)池電(dian)壓(ya)到4.2V時，調(diao)10K微調(diao)電(dian)阻到6.8K即(ji)可。