The Battle of Mayvitch 7 represents an early engagement in the Yinchorri Uprising, which occurred in 33 BBY. Human colonists originating from Immalia had established a settlement on Mayvitch 7 with the purpose of safeguarding their mining activities from pirate incursions.
As the battle unfolded, Yinchorri attack ships arrived and began their assault on Mayvitch 7, a moon orbiting the planet Amador within the Chalenor system. The Yinchorri forces swiftly overwhelmed the moon's defensive measures. Despite the colonists' efforts to deploy fighters, these were also annihilated.
A soldier stationed on Mayvitch managed to establish communication with the Jedi Temple located on Coruscant, warning them about the threat posed by the Yinchorri. Regrettably, this message did not reach the Jedi Temple until four standard days had passed. By that time, the Yinchorri had successfully seized control of the moon and, it is believed, the entire Chalenor system.