18650 lithium battery with line 3.7v battery

【18650 Lithium Batteries】Quality Guarantee! 1200mAh large capacity, 3.7V stable output, with a design that is ready to use with a cable. High-efficiency power support, suitable for a variety of electronic devices. Solve the pain points of frequent charging for users, lasting battery life for a worry-free experience. Safe and reliable, MSDS certified, choose us to inject powerful power into your devices, and enjoy an efficient and convenient life experience.