As miniaturization continues, component and wiring technology has also made great progress, such as highly integrated micro ICs in BGA housings and insulation spacing between conductors reduced to 0.5
[i=s] This post was last edited by qiankunweixiu on 2018-9-1 15:23 [/i]This is a 72V25A lead-acid battery control board. The current fault is that the microcontroller works, but there is no output at