E Cig Batteries
IMR batteries are some of the most popular batteries for electronic cigarettes. Depending on how much you vape, you could need to swap a new battery in every couple of hours to get the best hit. Most people have a few extra e cig batteries on hand to make sure they have one ready when they need it.
The most common IMR battery is the 18650, but there are many other sizes of batteries, so make sure you get the one that fits your device.