Cobalt's Discovery Season 4 appearance.

Cobalt is a robot built by Team Carbide from the United Kingdom, which competed in the second season of ABC's BattleBots reboot, as well as the fourth season on Discovery and Science. It was an invertible, two-wheel drive robot armed with a powerful asymmetrical bar spinner, which bore a close resemblance to a bladed axe head. Cobalt performed well in its debut season, reaching the round of 32.

For Season 4, Cobalt received a completely new build, sporting a black and green color scheme like Carbide's, and a design similar to the current Chinese champion Tungsten, with the steep wedge design with a vertical flywheel, only instead of one tooth, it's more of a saw-like disc. Unlike Tungsten, it doesn't have the electric self-righting axe.

The robot was co-built by Dave Moulds and Sam Smith; the former also joined Team Robo Challenge for their ABC Season 1 entry with Beta. Smith was the original builder of Tiberius, which competed in Series 4-7 of Robot Wars and Series 2 of Robot Wars Extreme, later entering ABC Season 2 as Photon Storm. For ABC Season 2, Moulds and Smith were joined by Sheryl Prior and James Cooper.

Around the same time that Team Carbide developed Cobalt for BattleBots, the same team also made a similar-looking heavyweight for Series 8, 9, and 10 of Robot Wars, Carbide. Carbide achieved significant success, winning Series 9 outright and finishing runner-up in its remaining appearances. Both Cobalt and Carbide were largely similar in shape and design, with Carbide using a symmetrical bar spinner, different armor and internals, and a black and green color scheme instead of Cobalt's white, blue and red.

Cobalt did not return for the 2018 season of Discovery's BattleBots reboot, due to filming clashes with the Chinese robot combat show This is Fighting Robots, which Team Carbide won with a new machine, Tungsten.

Robot History

ABC Season 2

Cobalt BB2016

Cobalt's Season 2 appearance.

CobaltbsOverhaul bb2016

Cobalt fighting Overhaul.

Cobalt's first ever match in BattleBots was against Overhaul. In the beginning of the match, Cobalt started spinning its blade and Overhaul moved toward the drivers booth. Overhaul was able to consistently deflect most of Cobalt’s hits and Cobalt started smoking. Despite this, Cobalt's blade was still moving and gave Overhaul one more hit. This hit disabled Cobalt's spinning blade and Overhaul lost drive on one side. Cobalt was able to escape and Overhaul was now being counted out. Although the motor was still spinning the blade, the team wouldn't trust it for another fight. So they decided to modify the chassis to take a bigger motor they could get delivered overnight. In spite of this, Cobalt won the match by KO at 1:26 and advanced to the round of 32 with its No.14 seeding, where it faced the No.19 seed Bombshell.

CobaltvsBombshell bb2016

Cobalt's wheels being shredded by Bombshell.

The match started out fairly evenly as Cobalt approached Bombshell while facing backwards and withstood the first attack. However, after a few more attacks, one of Cobalt's tires was torn off, leaving the robot to vibrate a bit as it moved around. A few seconds later, Cobalt's remaining tire was torn off, leaving it unable to move. Cobalt was counted out and Bombshell won by KO at 1:45. This meant that Cobalt was eliminated from the tournament.

Discovery Season 4

Cobalt's first match since 2016 put it originally against Captain Shrederator, whom was accepted to fight with little time to make any final adjustments. However, Captain Shrederator's team had fought Cobalt recently and didn't want a repeat performance so they opted to switch opponents with Cobalt. This put Cobalt against SubZero. For this fight,


Cobalt rips a piece off of SubZero.

Cobalt added an extra wedge to the front of it in hopes of getting underneath SubZero. When the match began, Cobalt got in the first hit, sending SubZero up and buffering one of the added wedgelets. The second sent a piece of SubZero's added wheel protection flying and tore a tire. Cobalt kept the punishment coming as it started tearing up the right side of SubZero, sending it up and breaking the front right tire. SubZero was still moving on its back wheels, so Cobalt kept the pain coming. SubZero tried to recover and managed to stop Cobalt by going wedge to flipper, but that only held Cobalt off for a second. SubZero tried running away, but Cobalt caught him, pushed him into the wall and tore off the left wheel guard of SubZero, as well as what was left of the front left wheel. Cobalt then got under SubZero and damaged the underside near the pulverizer. SubZero tried fleeing once more, but Cobalt caught up and slammed SubZero in its exposed spacing, tearing out one of its gas tanks and throwing it against the wall and onto its back, before hitting it again and putting them on their side. SubZero got off the wall, but Cobalt turned back around and slammed SubZero once more and SubZero stopped moving. SubZero was counted out, giving Cobalt its first win of the season.


  • Wins: 2
  • Losses: 1
Competition Wins Losses
ABC Season 2 Overhaul Bombshell
Discovery Season 4 SubZero (Undercard Match) TBA

Faruq Tauheed Introductions

"Roses are red, this bot is blue. Poems are dumb. Now, you're gonna die. It's COBALT!"

"Made in the UK, pound for pound, it's the deadliest bot in the 'Box. It's the banger, you're the mash. It's COBALT!"

"This bot is made of one compound: fractures. Trust me, you are out of your element. It's going to give you the bluesies from the bruiseies. Here's COBALT!"

See Also

Community content is available under CC-BY-SA unless otherwise noted.