Electro-Grenades

The Electro-Grenade was one of Donatello's inventions first introduced in the 2012 series. The Turtles would bring these weapons during their missions.

History
Enemy of My Enemy - Electro-Grenades were used against Shredder.

Newtralized! - Donnie used one in an attempt to cripple a Kraang walker that the Newtralizer hijacked.

Appearance
The Electro-Grenade resembled a baseball with some cell batteries and metal wires attached to it.

Function
Like many explosives shown in the series, the Electro-Grenade was designed to explode upon detonation. However, instead of creating a regular explosion, the Electro-Grenade would release a deadly electric field in order to zap enemies.