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只到4.05V左右，电量计显示84%。
电流还有50mA，还是在充电的。 这可能是由于充电回路的阻抗过大，限制了充电电流， 用短一点的线或者检查线路上的压降是否过大。
嗯，我试试。现在的充电回路0.3欧姆这样
