What is Lithium battery?
[[File:Battery-lithium-cr2032.jpg|thumb|CR2032 lithium battery]] [[File:Photo-lithium-cell-disassembled.jpg|thumb|Lithium battery inside]] {{distinguish|lithium-ion battery}} A '''lithium battery''' is a long-life, lightweight, high-power [[battery]] used in [[watch]]es (such as [[Junghans Mega]]), [[Medical device|medical devices]], camera flashes, electronic car keys, alarm systems, and many other devices. It is normally in the shape of a coin. As the name suggests, the battery has [[lithium]] in it. The lithium is [[oxidation|oxidized]], providing the power for the battery. They are not [[Rechargeable battery|rechargeable]]; once they are dead they should be thrown out. A lithium battery is different from a lithium-ion battery. Lithium-ion batteries are rechargeable. They are used in [[Telephone|phones]], portable [[Computer|computers]], and [[Electric vehicle|electric cars]]. Lithium batteries come in several sizes. The size is indicated by a code. CR1216 is a small battery, while CR2012 is medium-sized and CR2450 is large. They are normally more [[wikt:expensive|expensive]] than other batteries. ==Related pages== *[[Lithium-ion battery]] *[[Lithium]] *[[Dry cell]] *[[Battery]] *[[Table of batteries]] {{science-stub}} [[Category:Batteries]]