Samsung battery 40T 21700 4000mAh

The Samsung 40T 21700 4000mAh 30A Batteries are a new flat-topped 21700 battery cell from the revered brand Samsung, ideal for powering high amp box mod and other high-drain devices. Specifications: Nominal Voltage : 3.7V Capacity : 4000mAh Lowest Discharge Voltage : 2.50V Standard Charge : CC/CV (0.5A-4A max) Charging Cycles : > 500 cycles Max. continuous discharge rate : 25A Operating Discharge Temperature : -20 - 60 Degree Celsius Dimensions: 21.1mm x 70.2mm