UltraFire 18650 3.7V 3000mAh rechargeable lithium batteries with protection contains integrated battery overcharge/discharge protection circuits

More than 500 charge cycles, a properly maintained battery is designed to retain up to 80% of its original capacity at 500 full charge and discharge cycles

With this 3000mAh 18650 lithium battery, UltraFire has built-in features to prevent short circuits and designed multiple layers of protection within it. With the new button-top design, the new 18650 series better accommodates a variety of flashlight brands

UltraFire 18650 Li-ion battery is low self-discharge makes itself still maintain 80% of capacity after 3 years of non-use

UltraFire 3000mAh high capacity battery is widely used in your household devices, such as digital cameras, toys, remote controls, hand held games, 2-way radios, PDAs flashlights, alarm clocks, LCD-TVs, Toothbrushes, Shaver's and portable audio players, delivering dependable power allowing you to maximize your music gaming, computer, photography and other electronic devices

This is a high-performance replacement flashlight battery for the ULTRAFIRE 18650 RECHARGEABLE.  The flashlight battery is 2.69 x 0.71 x 0.71 inches with an output of 3.7 volts. The chemistry is LI-ION at 3000mAH capacity. Manufactured by Ultrafire, model number FLB-18650-3.0. We offer a 1 Year Warranty with purchase. See this product elsewhere at a lower price? Call or email us; we have a Price Match Guarantee.