Hello & welcome! Congrats on your first 5 days of vapingto answer your question...
Yes! The first rule of vaping is to have backups & backups for your backups. You never want to be in the position where you're tempted to buy a pack of cigs because you forgot to charge your battery or it dies on you. Please get a backup as soon as you can. Especially if you only have one battery.
You can't have too many batteries. I have about ten mods, with at least three batteries for each one of them.
True story: About 4 weeks into vaping I allowed my only two batteries run down without charging them, and got a nicotine craving real bad. I felt that I couldn't wait for the batteries to charge, so I get into my car around midnight and drive to the gas station to buy a pack of cigarettes.
Good thing is, by that time my taste buds had begun to heal, and that cigarette tasted like. I became nauseated and couldn't take more than a few drags, and ended up throwing it and the pack away.
I would say buying a pass - thru is a great piece of inexpensive hardware to have also. With it you plug it into a usb port in your car or at a computer and you screw your atty onto it. They have adjustable voltages, I have one and it does come in handy once in a while, later on when you learn to build new coils, you can dry fire on them. buy a decent one...![]()