SallyBest&reg; Portable AC Power Supply Adapter Charger for Nintendo Wii U Gamepad Remote Controller US Version This charges your Nintendo Wii U gamepad fast. With short-circuit protection and built-in overcharging protection. Simple and straightforward design. Really a good product. Wide voltage input (AC 100~240V), which avoids the defect of using AC 110V. Short-circuit protection and built-in overcharging protection.