自制一個簡單實用的鋰電池充電器改變圖中(zhong)4歐的(de)電(dian)(dian)(dian)阻可(ke)以改變充電(dian)(dian)(dian)電(dian)(dian)(dian)流，D1是電(dian)(dian)(dian)源指(zhi)示(shi)，D2是充電(dian)(dian)(dian)指(zhi)示(shi)兼限流。調試時6.8K電(dian)(dian)(dian)阻用一10K微調電(dian)(dian)(dian)阻代換，用數字表監視電(dian)(dian)(dian)池電(dian)(dian)(dian)壓到4.2V時，調10K微調電(dian)(dian)(dian)阻到6.8K即(ji)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。
    調試時6.8K電(dian)(dian)阻(zu)用(yong)(yong)一10K微調電(dian)(dian)阻(zu)代換，用(yong)(yong)數字表監視電(dian)(dian)池(chi)電(dian)(dian)壓(ya)到4.2V時，調10K微調電(dian)(dian)阻(zu)到6.8K即可。