20240119-小米打氣機外置電池改造(Modification of Xiaomi Inflator with External Battery) 

小米打氣機長期使用導致內部電池老化已無法蓄電，藉由外置21700電池盒的方式使小米打氣機有更多的電力動能並且日後電池老化也能方便換新，再次回收一台無線打氣機。
Extended use of the Xiaomi inflator has resulted in internal battery aging, rendering it incapable of holding a charge. By incorporating an external 21700 battery box, the Xiaomi inflator gains additional power capacity, ensuring prolonged usage and facilitating easy battery replacement in the future. This modification transforms the device into a wireless inflator with enhanced longevity and sustainability, effectively recycling and extending the life of the equipment.