Camping lamp reconstruction

This camping lamp is stepped on the pit, and the 3 -quarter 5 battery bought at 9.9 yuan is completely pitted.Still changed to a lithium battery [Smile]

野营灯改造一下

Transformer module, steady pressure to 4.5V

野营灯改造一下

Lithium battery charging and discharge integrated board (protective board)

Author: ArticleManager