Wii 3600mAh Rechargeable Battery Pack This product .plug one end hooks of the usb cable that goes with
this battery pack into this product. and the other and connect wii
console.the indication light is green when chargeing.This product
is compatible from the products of the same kind (blue light) for
charging,the indication light is red when charging.blue when it is
fullycharged the indication light of battery pack is out,After the
battery pack is charged up .to use it just have to put the battery
into the controller battery slot.