This upgraded night fishing float set includes a CR425 3.6V lithium battery and USB charger. The high-brightness LED ensures excellent visibility in all water environments. Equipped with automatic charging protection, the system stops power intake once fully charged. The red charging indicator illuminates during charging and flashes upon completion. Compatible with various charging sources—cars, phones, power banks, or PCs—and fits rod diameters from 0.5mm to 2.8mm, this set offers reliable and convenient night fishing performance.