The Efest Purple 18650 IMR 3100mAh 20A Battery is one of the best batteries for Mechanical MODs / Rebuildable Atomizer / sub-ohm user.

Safe chemistry LiMN 3.7V rechargeable high drain batteries do not require a protection circuit and they also have a reduced risk of venting with flame or explosion.

Not only are these the safest batteries available, they also perform better for a longer period of time.

Can be charged with any Li-Ion battery charger with 4.2V output however, for best battery life we recommend charging with a Smart / Intelligent Charger.