Inspired Energy originally released all of the standard battery models in the market today designed around the Lithium Ion 18650 model cells. Introduced during the 1990s-2000, these products have supported our customers for decades in numerous applications. Now with the advent of the new Lithium Ion 21700 cells we are again releasing the next generation of standard batteries for our clients. The new N-series products have increased runtime capacity of 47% over the previous 3.4Ah products. The continued demand for longer runtime from a high-quality USA supplied battery makes these products the front runner for the new medical, robotic, military and other growing markets.