When it comes to puff capacity, battery performance, and flavour choice, Geek Bar E600 Puffs Disposable Vape never fails to impress in all the sections. With its impressive 400mAh internal battery and 2ml tank holding capacity, the Geek Bar E600 offers around 600 flavoursome puffs. It contains 20mg of nic salt in 2ml e-liquid that gives you a very smooth throat hit.