Editing Volt (section)

== Common voltages <span class="anchor" id="Common values"></span> ==
[[File:Electronic multi meter.jpg|thumb| A [[multimeter]] can be used to measure the voltage between two positions.]]
[[File:BateriaR14.jpg|upright|thumb|1.5&nbsp;V C-cell batteries]]

The voltage produced by each [[electrochemical cell]] in a [[Electric battery|battery]] is determined by the chemistry of that cell (see {{Section link|Galvanic cell|Cell voltage}}). Cells can be combined in series for multiples of that voltage, or additional circuitry added to adjust the voltage to a different level. Mechanical generators can usually be constructed to any voltage in a range of feasibility.

Nominal voltages of familiar sources:
* [[Neuron|Nerve cell]] [[resting potential]]: ~&nbsp;75&nbsp;mV<ref>Bullock, Orkand, and Grinnell, pp. 150–151; Junge, pp. 89–90; Schmidt-Nielsen, p. 484.</ref>
* Single-cell, rechargeable [[Nickel–metal hydride battery|NiMH]]<ref>{{cite book |last1=Horowitz |first1=Paul |last2=Winfield |first2=Hill |title=The Art of Electronics |date=2015 |publisher=Cambridge Univ. Press |location=Cambridge [u.a.] |isbn=978-0-521-809269 |page=689 |edition=3.}}</ref> or [[nickel–cadmium battery|NiCd]] battery: 1.2&nbsp;V
* Single-cell, non-rechargeable (e.g., [[Electric battery|AAA, AA, C and D cells]]): [[alkaline battery]]: 1.5&nbsp;V;<ref>{{cite web |url=http://www.ti.com/lit/an/slva194/slva194.pdf |title=Single-cell Battery Discharge Characteristics Using the TPS61070 Boost Converter |author1=SK Loo |author2=Keith Keller |publisher=Texas Instruments |date=Aug 2004 |url-status=live |archive-url=https://web.archive.org/web/20231015141242/https://www.ti.com/lit/an/slva194/slva194.pdf |archive-date= 15 October 2023}}</ref> [[zinc–carbon battery]]: 1.56&nbsp;V if fresh and unused
* [[Logic level#Logic voltage levels|Logic voltage levels]]: 1.2&nbsp;V, 1.5&nbsp;V, 1.8&nbsp;V, 2.5&nbsp;V, 3.3&nbsp;V, 5.0&nbsp;V
* [[Lithium iron phosphate battery|LiFePO<sub>4</sub>]] rechargeable battery: 3.3&nbsp;V
* [[Cobalt]]-based [[Lithium polymer battery|lithium polymer]] rechargeable battery: 3.75&nbsp;V (see [[Comparison of commercial battery types]])
* [[Transistor–transistor logic]]/[[CMOS]] (TTL) power supply: 5&nbsp;V
* [[USB]]: 5&nbsp;V DC
* [[Nine-volt battery|PP3 battery]]: 9&nbsp;V
* [[Automotive battery]] systems use cells with 2.1&nbsp;volts per cell; a "12&nbsp;V" battery has six cells connected in series, which produces 12.6&nbsp;V; a "24&nbsp;V" battery has 12 cells connected in series, producing 25.2&nbsp;V. Some antique vehicles use "6&nbsp;V" 3-cell batteries, or 6.3&nbsp;volts.
* Household [[mains electricity]] AC (see ''[[Mains electricity by country]]'' for a list of countries with mains power plugs, voltages and frequencies)
** 100&nbsp;V in Japan
** 120&nbsp;V in North America
** 230&nbsp;V in Europe, Asia, Africa and Australia
* [[Rapid transit]] [[third rail]]: 600–750&nbsp;V (see [[List of railway electrification systems]])
* High-speed train overhead power lines: [[25 kV AC railway electrification|25&nbsp;kV at 50&nbsp;Hz]], but see the [[List of railway electrification systems]] and [[25 kV AC railway electrification#25 kV AC at 60 Hz|25&nbsp;kV at 60&nbsp;Hz]] for exceptions.
* High-voltage [[electric power transmission]] lines: 110&nbsp;kV and up (1.15&nbsp;MV is the record; the highest active voltage is 1.10&nbsp;MV<ref>{{cite web |url=https://www.bloomberg.com/news/articles/2019-01-02/world-s-biggest-ultra-high-voltage-line-powers-up-across-china |title=World's Biggest Ultra-High Voltage Line Powers Up Across China |website=Bloomberg |url-access=subscription |access-date=7 January 2020 |date=1 January 2019}}</ref>)
* [[Lightning]]: a maximum of around 150&nbsp;MV.<ref>{{cite web |url=https://www.riskva.com/fff/lightning_062613.html |author=Paul H. Risk |title=Lightning – High-Voltage Nature |website=RiskVA |date=26 June 2013 |access-date=23 April 2021 |archive-date=23 April 2021 |archive-url=https://web.archive.org/web/20210423220123/https://www.riskva.com/fff/lightning_062613.html |url-status=live }}</ref>