I tell that to all Transitional Vapors, the people quitting cigarettes. I say you need at minimum 2 batteries and 2 spare clearo's drip tips and any other accessory you cannot vape without in your glove box and a car charger is always key. Back ups to your backups. I have had bad experiences where a battery dies and another is lost or I am out of the office with no intention of returning and forgot my setup on my desk.I guess a PSA announcement but - Always have backups for your backups. Got hit with a problem twice in two days. Ouch. But was covered by several clearomizers and juice.