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{{Status|Canon}}
{{Era|H3}}
{{Weapon infobox
|name=Power drain
|image=[[File:H3-UnarmedPowerDrainer.png|300px]]
|manufacturer=
|series=
|type=[[Equipment|Deployable equipment]]
|cost=
|variant=
|service=[[Human-Covenant War]]
|length=
|width=
|height=
|weight={{Convert|11.2|lb|kg|disp=flip|sp=us}}{{Ref/Book|Id=Enc09|Enc09|Page=343}}
|ammotype=[[Electromagnetic pulse]]
|capacity=Single-use
|feed-title=Duration
|feed=Roughly 6.5 seconds{{Ref/Reuse|Enc09}}
|operation=
|rate=
|velocity=
|optics=
|range=
}}
The '''power drain''' is a combat support device designed and developed by the [[Covenant]] for its infantry forces. The equipment has several colloquial nicknames among [[United Nations Space Command]] personnel, including "'''Draino'''" and "'''Drainer'''".{{Ref/Reuse|Enc09}}{{Ref/Book|Id=EVG|EVG|Page=47}}


==Overview==
[[Image:H3_Power_Drainer.jpg|right|150px|thumb|The Power Drainer.]]
===Design details===
The '''Power Drainer''' is a short-range magnetic offensive weapon featured in ''[[Halo 3]]''.
The power drain is a roughly spherical device massing {{Convert|11.2|lb|kg|disp=flip|sp=us}}. When activated, the device emits a blue [[electromagnetic pulse]] field for around 6.5 seconds, after which the device self-destructs in a small explosion. The EMP is used to short out the electrical systems of any equipment caught within range, including [[energy shielding]] and light vehicles. During its activation, two cylindrical emitters are extruded from the sides of the sphere.{{Ref/Reuse|Enc09}}{{Ref/Site|Id=BNet|URL=http://halo.bungie.net/content.aspx?link=h3betaEquipment|Site=Bungie.net|Page=Halo 3 Beta: Equipment|D=14|M=10|Y=2014}}
==Function==
The power drainer creates a short-range magnetic induction effect causes disastrous failure of powered field systems within a set radius, and is designed primarily to interfere with common varieties of field-based shielding and power generation. It also has a damaging effect on biological systems and can wound or kill most bipeds in its resulting explosion. <ref>[http://www.bungie.net/content.aspx?link=h3betaEquipment   Bungie.net's review of ''Halo 3 Beta'' equipment]</ref> Essentially, the Power Drainer is like a reverse bubble shield; instead of keeping the player inside unharmed, it causes any player's shields within the area of effect to drain away, making them vulnerable to harm. Unlike the bubble shield however, the power drainer will roll.


The power drain has a visual resemblance to the [[flare]] and [[radar jammer]] equipment also developed by the Covenant, save for its blue colouration. The Flare, developed by the [[Jiralhanae]], was based on the same technology as the power drain and radar jammer.{{Ref/Book|Enc22|Page=341}}
It is a deployable device that has been confirmed in the leaked internal beta build on [[Last Resort]] and in the recent public "Friends and Family" Beta Test. It has not been confirmed to be in the finalized game. The Power Drainer, like the [[Bubble Shield]], [[Trip Mine]], [[Radar Jammer]] and the [[Portable Gravity Lift]], are all in the category of "Equipment" and can be deployed using the "X" Button. It is activated immediately when deployed.


===Usage===
Many fans are quite critical of the weapons countdown fuse, and argue that it does not allow the user enough time to escape to a safe distance before it activates and completely drains their shield.
The power drain is a piece of infantry support equipment developed by the Covenant, and was heavily employed by the [[Jiralhanae]] loyalist forces of the [[Prophet of Truth]] during the final weeks of the [[Human-Covenant War]].{{Ref/Reuse|EVG}}{{Ref/Game|Id=H3|H3|Power Drain in-game equipment}}{{Ref/Game|Id=H3ODST|H3ODST|Power Drain in-game equipment}} Despite their origin, [[human]] forces were more than willing to make use of captured enemy power drains during the war.{{Ref/Reuse|EVG}}


==Gameplay==
==Spawns==
{{Linkbox|gameplay=yes}}
'''High Ground'''
===''Halo 3'' and ''Halo 3: ODST''===
The power drainer can be found on a small metal ledge inside the main compound of the High Ground base. The ledge is within jumping distance of the flag spot.
The power drain is one of several pieces of deployable [[equipment]] featured in ''[[Halo 3]]''. When thrown, the power drain takes 0.5 seconds to activate, and subsequently lasts 6.5 seconds, equaling a total of [[Seven|7]] seconds. The effects of the power drain pass through walls and floors, so simply fleeing to the bottom floor of a structure after an enemy activates one will still strip one's shields if one passes through the field. This is most noticeable on maps like [[Guardian (Level)|Guardian]].{{Ref/Reuse|H3}}


The power drain can be used in a glitch called [[Equipment jumping]] by moving against a wall, jumping, and then at highest point of the jump deploying the power drain. This allows a player to jump off of it in mid-air. This is a great tactic for reaching high areas of a map, such as the second level of the tower on [[The Pit]]. This can also be done with the radar jammer and flare. The power drain variation of the glitch is commonly claimed to only be able to be performed as an [[Sangheili|Elite]]. This is not the case, but it is exceedingly difficult to do as a Spartan in the [[Xbox 360]] version of ''[[Halo 3]]''; thus, only a few instances of it have been documented. It appears to be easier to accomplish while playing as a Spartan in the ''Halo 3'' portion of ''[[Halo: The Master Chief Collection]]''.{{Ref/Reuse|H3}}
'''Snowbound'''
The power drainer spawns inside "Low Base" on Snowbound.[[Image:Snowbound_PowerDrainer.jpg|150px|thumb|right|The Power Drainer's spawn on [[Snowbound]] inside "[[Low Base]]".]]


In ''[[Halo 3: ODST]]'', the power drain performs as it did in ''Halo 3'' though cannot be used by the player. It is only used by Brute enemies; when the player is in the radius of a power drain, their health will drain in addition to their shields.{{Ref/Reuse|H3ODST}}
'''Valhalla'''
The power drainer spawns at the nose of the pelican on Valhalla.


==Gallery==
Its spawn location has also been seen on [[Last Resort]] in the leaked internal beta video.
<gallery>
File:Powerdrainhud.svg|The power drain icon in [[Halo 3]].
File:Power Drain.jpg|An inactive power drain in ''Halo 3''.
File:Halo3-Power Drainer Unarmed.png|An inactive power drain in ''Halo 3'' beta.
File:Power drain Halo 3.jpg|A deployed power drain, about to activate itself.
File:Power Drain in Action.jpg|The power drain emits a field of blue radiation that strips away all energy shielding within its range.
</gallery>


==List of appearances==
* All spawn locations are referring to the Halo 3 Multiplayer Public Beta.
*''[[Halo 3]]'' {{1st}}
 
*''[[Halo 3: ODST]]''
==Trivia==
*It shares many physical similarities with the [[Radar Jammer]].
*It may also be capable of draining vehicle power as well. A Bungie employee remarked that "the guy [he] just boarded used the Power Drainer to once again disable [the Banshee]."


==Sources==
==Sources==
{{Ref/Sources}}
<references/>
<br clear="all">
{{Equipment List}}


{{Navbox/Pickups/Gameplay}}
[[Category:Technology]]
[[Category:Electronic warfare technology]]
[[Category:Covenant technology]]
[[Category:Equipment]]

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