Tugboat 4500 Puffs Tugboat EVO Disposable 4500 puffs runs on an 850mAh internal battery, resulting in improved performance at both lifespan and stability. Packed with a 10ml capacity for e-juice, it’s entirely down to your preference to choose the sweet flavor. Using a 5% nicotine level, it is absolutely able to bring you a good throat hit and immerse cloud, satisfying you up to 4500 puffs.