is the most common e-cigaret. Its connection (threads) is the most commonly used and therefore is is compatible with most accessories compared to other ecigs.
The threads are called Ego and 510. If you are using misers that are called something with Ego connection, it will cover the entire threads.
With 510 threading the outer (Ego) threading will be visible.
The "Patterned" batteries in this category will add some spark and smiles to your day with beautiful laser engraving and nice colors.
To find out how long you will be able to vape between charges, you can use this rule of thumb that the given mAh is hours and minutes:
350 mAh = 3 hours og 50 minutes
750 mAh = 7 hours og 50 minutes
This is only a rule of thumb, and it will of course depend on how much you vape, which miser you use and how many times your battery has been charged etc. But this way it gives you an idea.