Chaar

Chaar is the planet where the Decepticons settled after being driven from Cybertron. It is a burned-out, barren husk of a planet. The Chaar spider and energy leeches are some of the few native animals to the dead world. Deadly, but not dead. Like Cybertron, Chaar has two metal moons.
 * Crackhead English-Malay Dub Name: Chollo

The Transformers cartoon
After the battle against Unicron in 2005, the Autobots successfully drove away all the Decepticons occupying Cybertron. With Galvatron missing, the Decepticons became directionless and chose to seek refuge on the burned-out world of Chaar. Starved of energon, they were reduced to scrounging for scraps. Rodimus Prime and Grimlock visited the planet in search of kidnapped Autobots and found their old foes in this sorry state. While Cyclonus and Scourge went to retrieve Galvatron from his resting place on Thrull, the rest of the Decepticons were recruited by the Quintessons to take part in an assault on Cybertron. Thus when Galvatron arrived on Chaar, the only one left to greet him was Blitzwing, who explained what had happened.

Reinvigorated, the Decepticons gradually transformed the planet into a suitable place to live, though some ruins still littered the landscape. The Decepticons made use of the damaged buildings, even for delicate medical procedures. Eventually a substantial portion of the planet was altered to be Cybertron-like.

Not even Chaar was safe from the Hate Plague, and Galvatron found himself the only Decepticon left uninfected. A group of Autobots led by Optimus Prime arrived there in search of the samples of an alloy stolen earlier by the Decepticons. Galvatron guided them through one of Chaar's caverns, infested with many examples of the planet's native wildlife, until they found the storehouse containing the metal.

Robotmasters
The Autobot Road Rocket resided on Chaar before coming to Earth to be Optimus Prime's bodyguard in 2004.

The Headmasters cartoon
The Decepticons continued to use Chaar as a base of operation into 2011, although by then it had lost both its moons and was considerably more desolate. The Decepticons operated out of a single small city, though their facilities were sufficient to reconstruct Soundwave as Soundblaster after he was killed.

The planet apparently occasionally experienced heavy fog, such as when Scorponok arrived to report to Galvatron. Their security was not particularly efficient however, as demonstrated when Twincast managed to sneak through the space bridge and spy on a Decepticon meeting. The Decepticon ranks were also infiltrated by the Autobot Punch. The Decepticon early warning system was sufficient to detect the incoming Horrorcons though.

The Decepticons continued to use their planet as a base of operations though their quest for power would see them occasionally leaving the planet to carry out tasks on other works, such as when they went to Master to forge the Zarak Shield. Following a failed attempt to destroy Earth, the Decepticon main force abandoned that world completely and consolidated on Chaar. They continued to operate from there as they battled the Autobots based on Athenia.

Victory
The Dinoforce hail from Chaar.

The Big Broadcast of 2006
By the year 2006, the Decepticons under Galvatron's command had claimed Chaar as their home base of operations.

Dreamwave Generation One continuity
Once a populated planet, Charr became a barren wasteland crisscrossed by lava flows as a result of natural disaster.

Cybertron cartoon
Charr has been reduced to a dangerous asteroid belt, though its metallic moon still floats within the dense rocks, a marginally more stable location.

During the intermezzo between Energon and Cybertron, Wing Saber and Optimus Prime were involved in a rescue mission within the Charr asteroid belt. Under desperate pressure to get out quickly, they attempted to link up. The experience ended badly, and Optimus would later claim to never have heard of two Transformers combining. United

Animated cartoon
Chaar is a world within the once mighty Decepticon Empire, ruled by General Strika. Team Chaar is stationed there.

Knights of Unicron
The Trypticon Dinobase, located on Planet Chaar, was the eighth venue for the Knights of Unicron on their 2014 "Till All Are One" tour. The planet also inspired the title of their studio album, "Bot Out of Chaar".

Transformers: Unicron Trilogy
Chaar is a burned-out, barren husk of a planet and the new homeworld of the Decepticons, far away from the Hadean System in Transformers: Unicron Trilogy. Chaar appears to be smaller than Earth but about the same size as Mars.

Long ago, Chaar was once a Energon mining planet colonized by the Transformers, but was reduced to ravage by war and Red Energon was unstable, burning up the entire planet. After Chaar had been rendered uninhabitable, the Autobots and the Decepticons first came to the burned-out world. At the end of Armada saga, after the first battle against Unicron, the Autobots successfully drove away all the Decepticons occupying Cybertron. With Megatron missing, the Decepticon fleet became directionless and chose to seek refuge on Chaar.

In Energon saga, the Decepticons nearly starved to death on the wasteland of a planet, until Soundwave successfully retrieved Megatron from his resting place within Unicron. Megatron raised a zombie Terrorcon army from Chaar's dead by hurling solidified Dark Energon at it through a space bridge hidden there in the opposite side of the Moon. His plan to have them sack both Earth and Cybertron was foiled, when the Autobots turned the Energon pump on the space bridge and caused it to implode. Reinvigorated, the Decepticons gradually transformed the planet into a suitable place to live, with cities and battle stations, though some ruins still littered the landscape. The Decepticons built their own Omega Lock directly on the underside of their ship and recreated use of the damaged buildings, even for delicate medical procedures, into Darkmount. Eventually, a substantial portion of the planet was altered to be Cybertron-like.