Ok, this might be a silly question but I just don't want to screw anything up.
I've recently acquired the Vapor Flask and it comes with a USB charging cable. Is it safe to use an AC adapter and charge it from a wall outlet? Or should I only use it with a computer USB outlet?
I've recently acquired the Vapor Flask and it comes with a USB charging cable. Is it safe to use an AC adapter and charge it from a wall outlet? Or should I only use it with a computer USB outlet?