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一块NEC4.8V、850mAH手机镍镉电池,摔地后充不进电,用万用表测量其电压为1V左右,短路电流为0mA,估计电池组内有极板相碰短路。用薄而锋利的刀片沿电池的粘接处小心地将上下盖剖开。打开上下盖板,取出电池组内的四节电池,分别单只测量,发现其中一节电池为1V,其余三节电池都为0V。试用20V/120mA的电源分别对无电压电
A NEC4.8V, 850mAH cell phone NiCad battery, not charging after falling to the ground, using a multimeter to measure the voltage of about 1V, short circuit current is 0mA, it is estimated that there is a short circuit within the battery pack plate. Use a thin, sharp blade to carefully dissect the top and bottom covers along the battery. Open the upper and lower cover, remove the battery within the four batteries, respectively, only a single measurement found that one of the batteries is 1V, the remaining three batteries are 0V. Try the 20V / 120mA power supply for voltage-free