This Samsung high quality 18350 Battery is a 900mAh ICR Lithium-ion Rechargeable cell. A ecig user could get approx 7-9 Hours of use. Compatible with any ecig mod that use 18350 Batteries. Be sure to check if your e-Cig is compatible with ICR first.
If you are looking for an e-Cig Mod to go with these batteries, See the These Batteries work with the Vamo V5/a>.