Typically, you charge the Switch’s internal battery with a plugged-in AC adapter or by nestling it into the dock connected to your television. However, because the Switch’s AC adapter is USB-C based, a simple USB-C to USB-C or USB-C to USB-A cable can connect your Switch to hundreds if not thousands of battery packs and power sources. You may even already own something compatible with the Switch if you’re purchased a backup battery for your phone or tablet, as long as you get the right cable to connect it. When you reach a destination with a power outlet, you recharge the battery with a USB-compatible power plug.