The Energenie EG-BA-18650/3350 is a rechargeable lithium-ion battery designed for high-drain devices such as LED flashlights, e-cigarettes, and various autonomous electronics. With a capacity of 3350 mAh and a voltage of 3.7 V, it provides a reliable power source for equipment that requires steady energy delivery over time. Safety is integrated directly into the cell, which features built-in protection against over-charging, over-discharging, and short circuits. Measuring 19.5 x 70.5 mm and weighing 50 g, this 18650 form factor battery fits standard compartments and can be reused for up to 500 charging cycles, making it a practical choice for users who need a dependable power cell for their portable gadgets.