RadioShack 2.4V/800mAh Ni-Cd Battery for VTech

we came back from your vacation and because this was in our charge and this is a dead there's nothing there's no power and you see the it is charging after overnight there's still nothing works so the battery for sure Ted and I pull out some old one and this is flash whole overnight still not in charge and this one is good so they all have a fat wake it called ah an ICD Nico a similar cadmium and this is a whole rechargeable battery and this is a very similar but they are all dead how do we revive it so the first of all you take the battery this is a 3.5 3.6 volt battery and and I'm going to show you how to revive this you take this off so this is a red it's the positive and black is connected and you put some wire use a wire cutter and cut this expose okay so what you do is put this in here that's one lid and put another one here okay so remember this green is the right and yellow is t