Sledge-Jammer was a heavyweight robot built by Andy Sauro and Team Fatcats that competed in the final three seasons of BattleBots. It was a translucent robot with blue panels originally armed with a dual set of hammers that was exchanged for two flat metal pieces in Season 5.0. It performed acceptably in BattleBots, but never went further than the round of 64.
Sledge-Jammer's first ever match in BattleBots was against Bad Dog. Bad Dog won the match by KO in 43 seconds and Sledge-Jammer was eliminated from the tournament.
Sledge-Jammer was scheduled to fight Overbearing first in the final preliminary round, but Overbearing had technical issues and was forced to forfeit. Sledge-Jammer won by default and advanced to the TV rounds, where it faced Junkyard Offspring. Junkyard Offspring won by KO and Sledge-Jammer was eliminated from the tournament again.
Because it lost in the round of 64, Sledge-Jammer couldn't participate the heavyweight consolation rumble at the end of the tournament.
Sledge-Jammer was scheduled to fight Phalanx first, but Phalanx had technical issues and was forced to forfeit. Sledge-Jammer won by default and advanced to the final preliminary round, where it faced Spinister.
Sledge-Jammer charged straight at Spinister, where it got a few hits in, but mostly missed. Spinister spun to deflect Sledge-Jammer and grappled Sledge-Jammer with one of its spikes. Spinister won on a close 25-20 judge's decision and Sledge-Jammer was eliminated from the tournament once again.
- Wins: 2
- Losses: 3
|Season 3.0||None||Bad Dog|
|Season 4.0||Overbearing (Forfeit)||Junkyard Offspring|
|Season 5.0||Phalanx (Forfeit)||Spinister|