Battery

Batteries are used as a means of supplying power to devices, such as the HEV suit, the Powered Combat Vest, various Combine technology, and many other things. Throughout the Half-Life series, they can be found throughout the Black Mesa Research Facility, and are normally located throughout built-up areas and Resistance bases.

Half-Life
In Half-Life, Batteries can be found almost everywhere. They were notably used by Gordon Freeman and other Black Mesa scientists to charge the HEV suits. It would seem that, due to their abundance, they were used for more than just this, though.

Batteries give the player a different amount of armor points depending on the difficulty mode. In easy and medium modes, batteries give the player 15 armor, while in hard mode, batteries only give 10. This means that the player will have to rely on Chargers for a large increase in armor points.

The Half-Life demo (Half-Life: Day One) features a different model. It is also used as a temporary model for the Long Jump Module, with red panels instead of blue.

There is a high-definition battery texture in the Half-Life SDK, however it is never used in any official games.

Half-Life 2
In Half-Life 2, the new, redesigned batteries serve more purposes than simply powering-up the HEV suit; they are also used as a portable power source for several Combine technologies, most notably the City Scanner. To accommodate the new Combine batteries, the Mark V HEV suit was redesigned to be able to use them. Batteries will give the player 15 Armor Points, regardless of difficulty level. This means that the player will still need to depend on HEV Chargers to obtain a large amount of Armor Points.

Unused sound clips from the playable Half-Life 2 Beta indicate that Batteries could be charged up at one time, though how this was done is unknown. In the Beta, the Battery model is exactly like the one in Half-Life, only much smaller.

Deathmatch Classic
In Deathmatch Classic, the Battery is used as ammo for the Lightning Gun. A small Battery gives the player 6 cells, while a large Battery give the player 12 cells. However, both small and large batteries use the same model.

List of appearances

 * Half-Life: Day One
 * Half-Life
 * Half-Life: Uplink
 * Half-Life: Opposing Force
 * Deathmatch Classic
 * Half-Life: Blue Shift
 * Half-Life: Decay
 * Half-Life 2
 * Half-Life 2: Deathmatch
 * Half-Life 2: Lost Coast
 * Half-Life 2: Episode One
 * Half-Life 2: Episode Two