The XBOX360 controller charging lithium battery case utilizes a parallel connection of 10 3048 lithium cells, delivering a total capacity of 3000 mAh. It employs a standard online charging board paired with an AMS1117-3.3 voltage regulator circuit, with the 1117-3.3 mounted directly within the output terminals. The output leads can be connected using nickel strip welding, which is commonly used for lithium batteries—and the resulting assembly works exceptionally well when printed via stereolithography.