The Super 3350mAh 18650 4.2V Lithium-Ion Rechargeable Battery Cell is a high-performance energy solution designed for lighting accessories, flashlights, torches, and electronic devices. With a stable voltage of 4.2V and large capacity of 3350mAh, it ensures longer runtime, reliable efficiency, and durability. Its cylindrical 18650 design makes it suitable for battery packs, DIY projects, solar applications, and backup power.