XTAR batteries are among the best performing batteries for LED flashlights and related high drain devices. This XTAR battery is protected from over-charging or over-discharging with a protective circuit that regulates the output. With a rating of 3500 mAh, the XTAR 18650 features one of the highest energy capacities available for batteries of its type. This battery is perfect for high drain devices such as LED flashlights, providing high voltage with long run times. The XTAR 3500mAh 18650 comes packaged in a convenient cardboard box and is ready for immediate use.