Save your time for charge up to 5 Wii Remotes
simultaneouslyFast recharge speed and long lasting rechargeable Ni MH battery packs includedCharge through the USB port on back of Wii or computer USB portBattery pack: Ni Mh rech??geable batteries ...
This item is compatible with charging for Wii controller.it has
4pcs charge port so it can charge 4pcs controllers at the same time.And it have 4pcs match battery packs,so no need to worry power problem.