charges for electrical items

The items I've created from the electric discipline (shocking staff, flow spectrometer and chapeau of magnetic inversion) all use charges. I've bought batteries, but I'm not sure what to do with them. Am I supposed to somehow combine the battery with the item? I've tried dragging the battery and dropping it onto the item, but this doesn't do anything.
Please help. Thanks alot!

 

If it's a weapon you must use your batteries as an ammo but if it aan armor you mo meed to do anything with it

 

You just need to keep the batteries in your inventory. Be adviced that the flow spectrometer eats batteries at an unheard of rate, so DON´T equip it when you don´t need it! Or else you´ll QUICKLY run out of batteries!

 

Just like Bullets or Arrows, keep the Charges in your inventory, and it doesnt hurt to lay your fingers on a schematic for Charges, metal plates and an electrolyte solution are all that is required to create up to 25 charges

 

Same thing here only 2 months what are you doing YeaYea?