Energy cell pack


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This article is about the Doom item. For the Strife item, see Energy pack.
An energy cell pack sits above a pool of blood in Doom E3M3: Pandemonium.
An energy cell pack right before a battle in Doom 64 MAP17: Watch Your Step.

An energy cell pack is a "battery" of energy cells that serves as the larger ammo used to power the plasma gun and the BFG9000 in Doom and Doom II, and additionally also the Unmaker in Doom 64. In the original games it is somewhat shaped like a large black and gray car battery with three yellow lights, whereas in Doom 64 it is green-brown in color and has a similar pattern of three green lights as the standard cell. It contains 100 units of energy (or 200 on the I'm Too Young To Die and Nightmare! skill levels). The plasma gun uses one unit per projectile, while each BFG shot consumes 40 units. Thus, one pack can provide 100 plasma rifle shots, or two BFG shots with 20 ammo left over. The Unmaker on the other hand has a different ammo consumption depending on how many Demon Keys the player has collected, ranging from one at zero keys to three at full keys.

Each shot from the plasma gun does 5-40 hit points of damage, determined using Doom's pseudorandom number generator. BFG damage calculations are more complex; a direct hit inflicts 100-800 points and shortly after additional damage is added with 40 beams from the player in a wide arch. This can take the total damage into the thousands of hit points if all the beams hit a valid target. Therefore, depending on its usage, the BFG can be a much more efficient use of energy cell packs than the plasma gun is. Each attack from the Unmaker (visually a laser but in practice a hitscan attack) deals between 10 and 80 points of damage, and its damage output when upgraded generally outclasses all other weapons in the game.


Energy cell pack data
Thing type 17 (decimal), 11 (hex)
Enum MT_MISC21 (68) - Doom
MT_AMMO_CELLPACK (75) - Doom 64
Appears in Doom/Ultimate Doom
Doom II/Final Doom
Doom 64/Lost Levels
Radius 20
Height 16
Sprite CELP
Frames 1 [A]
Class Ammo
Flags 1 (decimal)
00000001 (hex)
Flags list 0: Can be picked up

Appearance statistics[edit]

In the IWADs the energy cell pack is first encountered on these maps per skill level:

The IWADs contain the following numbers of energy cell packs per skill level: