As https://npplithium.com/18650-vs-aa-battery-whats-the-difference/ leading Solar Battery Manufacturer, NPP Power believes in providing Clean Energy, Safe Power. Your experts for solar Lithium batteries used in residential, rural, and commercial applications around the world. <img width="484" src="https://i.ibb.co/9vD6W4f/18650-vs-AA-Battery-2307241.jpg">