Remove the chips and plugs from the broken universal charger. Only the shell and shrapnel are left. I installed two screws on the shell to make terminal posts. Two clamps are attached to the terminal for easy connection. Solder the connecting wire on the solar panel. I found an unused camera tripod, a broken mobile phone holder, put them together, and later used it to fix the solar panel. The assembled solar universal charger. The voltage of the solar panel under test, the weather is not so good, only 4.42V. . . . Start charging Gain Chip,Gain Chip Laser,Narrow Linewidth Laser Diode ,Single Spatial Mode Laser Diodes AcePhotonics Co.,Ltd. , https://www.acephotonics.com