Reserve Tank

A is a type of expansion exclusive to Super Metroid and Metroid: Samus Returns. There are four Reserve Tanks to be found on Zebes in Brinstar, Norfair, the Wrecked Ship and Maridia.
As the name suggests, each Reserve Tank provides an "extra" energy reserve of 100 units, with a maximum reserve of 400 once Samus finds them all. They can be set to be used automatically once her base energy is reduced to zero, or to be used manually from the Samus Screen.
Recharging Samus' energy at her ship and the Crystal Flash can refill the Reserve Tanks, though using an Energy Charge will not. She must otherwise collect Energy Capsules from defeated creatures to charge them, once her base Energy Tanks have been filled to capacity.
The Reserve Tank returns for the first time in over 20 years in Metroid: Samus Returns. If the Zero Suit Samus Super Smash Bros. amiibo is used, an Energy Reserve Tank will be unlocked. When Samus's energy is depleted, the tank will automatically replenish 299 energy. The tank has indefinite usage and cannot be discarded unless a new save file is started. Using the Smash Bros. Samus and Samus Returns Samus amiibo also contain a Missile Reserve Tank and Aeion Reserve Tank that will replenish Samus's Missile Ammo (50 regular Missiles, or 10 Super Missiles) and 500 Aeion.  Dying due to damage from the purple liquid will not cause the Reserve Tank to activate.
==Official data==
===Super Metroid manual===
;AUTO SUPPLY
:"This shows how energy from the reserve tanks is supplied."
;RESERVE TANKS
:"Method of use: Bring the cursor to RESERVE TANK on the SAMUS screen, then press the A button to start supplying energy.Reserve Tanks act as Samus’ emergency energy source. Reserve Tanks are empty when you collect them."
===Super Metroid Nintendo Player's Guide===
;RESERVE TANK
:"A total of four Reserve Tanks can be found on Zebes. They back up Samus's Energy Tanks and also hold 100 units of energy."
===Nintendo Power Volume 95===
;RESERVE TANKS
:"Four extra tanks can be found to back up the primary Energy Tanks."
===Metroid: Samus Returns manual===
;Aeion Reserve Tank
:"If your Aeion energy reaches zero while [Aeion Reserve Tank icon] is displayed, then this tank will automatically restore 500 units.
:*This becomes available again if you pick up a Big Aeion Orb."
;Missile Reserve Tank
:"If your missile count reaches zero while [Missile Reserve Tank icon] is displayed, then this tank will automatically replenish up to 50 missiles.
:*This becomes available again if you use an Ammo Recharge Station."
;Energy Reserve Tank
:"If Samus's energy reaches zero while [Energy Reserve Tank icon] is displayed, then this will automatically restore up to 299 units of energy.
:*This becomes available again if you use an Energy Recharge Station."
===Metroid: Samus Returns amiibo warning===
"Once a Reserve Tank is unlocked, this function cannot be deactivated until you start a new game. Unlock?"
==Trivia==
*The Reserve Tanks are identical in function to the Sub Tanks from the Mega Man X series. However, Sub Tanks in Mega Man X do not automatically refill energy when health is depleted and must be manually used.
ru:Резервный Контейнер
Category:Zebes
Category:Brinstar
Category:Norfair
Category:Wrecked Ship
Category:Maridia
Category:Expansions