Energon prod

The Energon prod is a weapon from the Prime portion of the Aligned continuity family.

Ratchet and Ironhide were right, I should've gone for this earlier!

The Energon prod can be used to electrocute enemies.

Fiction

Starscream used an Energon prod to interrogate William Fowler as to the location of the Autobot base. As he had suspected, Energon and human nervous systems did not mix. It had the side-effect of leaving Fowler completely and utterly incoherent. Darkness Rising

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Knock Out used an Energon prod as his primary weapon, electrocuting Optimus Prime while trying to capture the Energon harvester, and later attempted to use it on Bulkhead. Deus ex Machina