Samsung 40T 21700 Battery
Samsung 40T 21700 is an incredible 35A battery by Samsung. Right now this is the best performing cell available for higher power levels and unregulated/mech mod users. The 30T is a true 35A 4000mAh 21700 cell that hits harder than any other round battery we use. New cells are always coming out but the 40T is king. 40t 21700 battery is continue success of 30T samsung battery with over 1000 mah higher capacity than 30T.