The load is very long, in the top announced by bigben. Autonomy is well below that specified. Moreover, it may flatten the wiimote against charging stand because the quality is such that there is no touch.
Overnight, the two batteries ni-mh owners (why not have rather provided rechargeable batteries ni-mh?) Stopped working (they will not even held 5 charging cycles).
In short inadvisable. Pack all in one adapted to the wiimote can be tempting at first, but better putting more emphasis charger and rechargeable AA ni-mh which can be replaced when they lose their quality.