请教下,太阳能电池板的功率点我改了,设置为9V,可以充电,但是指示灯始终没有亮,只有一个指示灯微弱的闪烁,很微弱,不知什么原因
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.