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)(dian)阻可以改變充電(dian)(dian)(dian)電(dian)(dian)(dian)流，D1是(shi)(shi)電(dian)(dian)(dian)源指示，D2是(shi)(shi)充電(dian)(dian)(dian)指示兼限流。調(diao)試時6.8K電(dian)(dian)(dian)阻用一10K微調(diao)電(dian)(dian)(dian)阻代(dai)換，用數字表(biao)監視電(dian)(dian)(dian)池電(dian)(dian)(dian)壓到(dao)4.2V時，調(diao)10K微調(diao)電(dian)(dian)(dian)阻到(dao)6.8K即可。

 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(shi)時(shi)6.8K電(dian)阻用一10K微(wei)調(diao)電(dian)阻代換，用數字表監(jian)視電(dian)池電(dian)壓(ya)到4.2V時(shi)，調(diao)10K微(wei)調(diao)電(dian)阻到6.8K即可。