I had to evacuate for a hurricane right after I started. It is best to have a bag just for you
vaping stuff and multi-plug extension cord, like a surge protector for multiple chargers. Car chargers are a must. The usb one is good idea, got to get my self one. I have a Kensington battery pack and don't leave the house without it. I have another battery pack (don't have a name on it) I use sometimes, it has a 30 second auto cut off. I don't like it as well as the Kensington.