We're off on holiday to the States in August and it's just occurred to me that they have different electricity voltage there! Obviously we'll have a plug adaptor but I'm worried that I won't be able to charge my vape stick due to the different voltage. Does anyone know if most vape sticks (I have the eleaf TC80 battery) are dual voltage? I don't want to get there to find I can't charge my vape and end up back on the fags. Equally, I don't want to bust the battery by trying to charge it on a different voltage. Does anyone know if it will be ok?