The EFEST 3500mAh - 20A 18650 Battery (2 Pack) is a high-quality rechargeable battery set that offers long-lasting power and reliable performance. With a capacity of 3500mAh and a discharge rate of 20A, these batteries are perfect for use in high-drain devices such as vape mods and flashlights. The 18650 size makes them compatible with a wide range of devices, and the 2-pack ensures you always have a spare on hand. Invest in the EFEST 3500mAh - 20A 18650 Battery (2 Pack) for a reliable and long-lasting power source. Keywords: EFEST, 3500mAh, 20A, 18650, battery, rechargeable, high-drain, vape mods, flashlights, 2-pack.