User blog comment:Thunderblunder66/Charging with blutricity/@comment-2158701-20140129065829

Wrong. Sonic screwdrivers are recharged by right clicking a charged BT Battery in the hotbar (ID 1328 is the fully charged one in NEI), which charges it by 25 points each click. Both the BT Battery and the sonic screwdriver need to be in the hotbar.

And by alchemy bag, clarified to mean with a talisman of repair.