Energy Balancer

The Energy Balancer (エネルギーバランサー), also know as Energy Equalizer and E. Balance, is a item that recovers energy from the Special Weapons with less energy when the player takes a Weapon Energy item without the need to select a weapon before taking it. However, if the player wishes to refill a specific weapon, equipping that weapon will cause the obtained weapon energy to fill that weapon instead of other weapons. It appears in Mega Man 6 and 7 as a hidden item, and can be bought in shops. In the Mega Man X and Mega Man ZX series, the function of the Energy Balancer is part of the characters as default.

In Mega Man ZX Advent, a Energy Balancer appears in Floating Ruins 3 as one of the four artifacts to retrieve in a sidequest for a Sub Tank. It's called Old Balancer in the game, and is said to be a concept that is now taken for granted, but before they came along, unused energy was simply wasted into the atmosphere.

Appearances

 * It first appears as a secret item in Mega Man 6. It is found in Tomahawk Man's stage, in a room that can only be accessed with Power Mega Man, where Proto Man gives it to Mega Man.
 * In Mega Man 7, it can be bought with 240 Bolts after finding Auto's Hyper Bolt, or found in Shade Man's stage using the Rush Search under the portrait of Dr. Wily.
 * In Mega Man 8, it costs 5 Bolts.
 * In Mega Man & Bass, it costs 120 Screws.
 * In Mega Man 9, it costs 100 Screws.
 * In Mega Man 10, it costs 100 Screws when using Mega Man and 150 Screws with Proto Man and Bass.
 * In Mega Man IV, it can be exchanged by 150 P Chips.
 * In Mega Man V, it can be exchanged by 140 P Chips.

Energy Saver
Energy Saver (エナジーセイバー) is a item from Mega Man 8 and Mega Man & Bass that reduces the amount of energy used by Special Weapons, allowing them to be fired more times. In Mega Man 8 it costs 6 Bolts and is available after completing Duo's stage. In Mega Man & Bass it costs 200 Screws.It also appears in Mega Man IV and Mega Man V