Samsung 40T 21700 Battery

This superior quality Samsung lithium-ion battery has a capacity of 21700 and a nominal capacity of 4000mAh to provide huge power and high performance to your e-cigarette setup. 

The Samsung 40T boasts a maximum continual nominal discharge of 30A and a nominal voltage of 3.6V and can be safely recharged with the use of an external battery charging unit.

Always store your batteries in a cool place out of direct sunlight and extreme temperatures. When traveling with external batteries, ensure that you use a plastic or silicone storage case to protect against damage and reduce the risk of the batteries coming into contact with one another.