Welcome. You're right to be cautious. Lithium batteries cram a lot of power in a small space and can be dangerous if mishandled. You don't mention a charger. If you're contemplating one, think Nitecore or xtar brands. You can charge in that mod, but I don't recommend it. I think stand alone chargers do a better job and are safer. Plus, you can just swap for a fresh battery that way, rather than being tethered to the wall whilst charging.Thank you, this eased my mind, I was rather worried in the beginning, probably fell victim to the fear of all those news stories of people ending up with half their face gone.