Features :1. 100% Brand New2. Good quality and durable3. Safe and environment-friendly4. Low discharge rate, No memory effect, low reoccuring operation cost.5. Short-circuit and over current Protection, Sheef-life around 10 years ; Environmental friendly.7. Rechargeable Battery with Re/Discharging Protection Circuit. Specification :Battery Type : 18650 Li-ion batteryBattery Capacity : 7800mAhBattery Voltage : 3.7VMaterial : LithiumRechargeable : YesBattery Diameters (Dia) 18mmBattery Length : 65mmApprox Weight : 30gmAdvantages :High energy particle density.Always stable with a certain voltage.Reduce environmental pollution.Long service lifeSafe Capacity and voltage are always stable.High safety when the battery automatically disconnects when fully charged.Batteries are manufactured and distributed from the factory1-way current, low self-discharge capacityBattery covered by PVC Application:Power backups/UPSLaptops, and other commonly used consumer electronic goodsElectric mobilityEnergy Storage SystemsFlashlightPackages Includes :1 x 3.7V 18650 7800mAh Button Top Rechargeable Li-ion Lithium Battery   Note : 1. Due to the light and screen setting difference, the items color may be slightly different from the pictures.2. Please allow slight dimension difference due to different manual measurement.