Electronic cigarettes with 2 18650 batteries

2x18650

— powered by two replaceable 18650 batteries.

For general features of replaceable batteries, see Battery section. Specifically, 18650 is the most popular size used in modern vapes (and one of the most common in general). Such batteries have a diameter of 18 mm and a length of 65 mm; in terms of capacity and power, they are somewhat inferior to larger cells like 26650, but these characteristics are still sufficient for most cases. In terms of quantity, two 18650 cells can provide quite impressive power — from 100W to 240W — and take up relatively little space. Therefore, this power option is very common in battery mods.