With some of the highest discharge ratings out there, these AWT 40A batteries will handle almost anything you throw at them. This Product Features: Nominal Capacity: 3000 mAh Nominal Voltage: 3.7V Discharge End Voltage: 2.5V Standard Charging Current: 1.25A Charging Voltage: 4.20+-0.05V Max. Continuous Discharging Current: 40A You Will Receive: 1x – 2 Pack of AWT 40A Red 18650 Batteries BEASTLY BECAUSE 3000 mAh and a 40 amp discharge rate, the numbers don’t lie. These batteries are Beasts and will have you sub-ohming like a champ\ Do to their inherent safety, IMR cells don’t have a protection circuit built in. They should never be discharged below 2.5 volts or cycle life/performance will be reduced. Maximum charge voltage is 4.25 volts. Do Not Leave Unattended: Exercise caution when using Lithium Ion batteries and use safe charging and discharging protocol. Please take the time to research safe practices and use of this or any type of e-cig or mod battery!