|This article is about a/an changer in Battle Fever J.|
Battleceiver (バトルシーバー Batorushībā): The Battle Fever Squad's communication device and possible transformation device. It appears to look like a watch that is a two-way communicator to connect either to other members of the team or to General Tetsuzan at headquarters.
Using the transformation call of "Fever!", the team usually spin arounds and forms the suits around their bodies. However in episode 24, it is revealed that a Battle Fever suit is kept within the device in a hidden compartment. By pressing a button, the Battleceiver would eject the suit, which would fall over the user; this is crucial for allowing members to replace the team member in case one falls.
At the climax of the Legend War, the Battleceivers were made redundant when the Battle Fever Squad sacrificed their powers with the rest of the first 34 Super Sentai to destroy the invasion force of the Space Empire Zangyack. Resurfacing as Ranger Keys, the Battle Fever powers would be used by the Gokaigers to assume their forms via the Gokai Change. Ultimately, the Gokaigers returned their borrowed powers to their rightful owners after overthrowing Zangyack.
- The team name "Battle Fever" is spelled incorrectly as "Battle Feaver" on the label of the Battleceiver.