Bundle:2Packs Nitecore NL183 2300mAh 18650 Rechargeable Li-ion Battery 3.7V 8.5Wh CE UL RoHS Certification with EASTSHINE EB182 Battery Case(2Nitecore NL183 Battery+1EASTSHINE Battery Box) 1.High capacity: the capacity approximately 2300mAh, 12% higher than common 18650 rechargeable cells. 2.Versatile battery: compatible with most brands of 18650 flashlights and various kinds of high-drain devices. 3.Purpose-designed high-performance protected circuit: automatically protects against overcharge, over discharge and short-circuiting. 4.Low cost and encironmentally-friendly lifestyle: an NL183 battery can be recharged over 500 times, equivalent to 500 pairs of CR123 batteries. 5.High level of certification: certified by CE, RoHS; internationally insured by Ping An Insurance(Group) Company of China, Ltd.