Concurrently, no 18650 with a capacity over or at 3000 ... before buying your best vape battery is whether you need a button-top battery or a flat-top battery. This feature refers to the positive ...

So [Travis] decided to upgrade it to make use of the ever-so-common, 18650 lithium-ion battery. Not looking to purchase any components [Travis] performed this hack using simple recycled household ...