Technically the shockpad should be in the palm area of the glove or else the chances are too high to accidentally use it on yourself. To combine the damage with a normal melee attack, you then have to hit them with the palm, which is too much a restriction for efficient brawling. It could imply a -x damage penalty to your unarmed attack that its damage will be insignificant compared to the shock damage.
Uh... Palm attacks not powerful? Now you got me rattled up there
I have used palm attacks half of my 10-year martial arts career and have come to the conclusion they're in some ways *more* powerful than fist attacks...
Anyways, I can see it this way: you hit with full force, be my quest and do both damages, but you can say bye to those gloves/baton... Unless you have bought melee hardening for them.
I just think it should cost at least twice as much, given the weakness of structure on most electric devices. And even then you could, for example, roll a d6 and get them destroyed on a roll of 1.