自制一個簡單實用的鋰電池充電器改變圖中4歐的(de)電(dian)(dian)阻(zu)可(ke)以改變充電(dian)(dian)電(dian)(dian)流(liu)，D1是電(dian)(dian)源指示(shi)，D2是充電(dian)(dian)指示(shi)兼限(xian)流(liu)。調試時6.8K電(dian)(dian)阻(zu)用一10K微調電(dian)(dian)阻(zu)代換，用數(shu)字表監視電(dian)(dian)池電(dian)(dian)壓到4.2V時，調10K微調電(dian)(dian)阻(zu)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)(diao)試時(shi)(shi)6.8K電(dian)阻用(yong)一10K微(wei)調(diao)(diao)電(dian)阻代換(huan)，用(yong)數字表監視電(dian)池(chi)電(dian)壓到(dao)4.2V時(shi)(shi)，調(diao)(diao)10K微(wei)調(diao)(diao)電(dian)阻到(dao)6.8K即可。