List of battery sizes

As well as other types, digital and film cameras often use specialized primary batteries to produce a compact product. Flashlights and portable electronic devices may also use these types.

Image (AA size for scale)	Names				Typical capacity (mAh)	Nominal voltage (V)	Shape	Terminal layout	Dimensions	Comments
	Most common	Other common	IEC	ANSI
	CR123A	Camera battery 2⁄3A 123 CR123 17345 16340 CR-123A 6135-99-851-1379 (NSN)	CR17345 (lithium)	5018LC (lithium)	1,500 (lithium) 700 (Li–ion rechargeable)	3 (lithium) 3.6 (Li-ion)	Cylinder	+: Nub cylinder end −: Flat opposite end	H: 34.5 mm Ø: 17 mm[133]	A lithium primary battery, not interchangeable with zinc types. A rechargeable lithium-ion version is available in the same size and is interchangeable in some uses. According to consumer packaging, replaces (BR)2⁄3A. In Switzerland as of 2008[update], these batteries accounted for 16% of lithium camera battery sales.[74] Used in flashlights and UV water purifiers.[134]
		15270 (Li-ion rechargeable, 800 mA) 15266 (Li-ion, 600 mA) 6135-99-606-3982 (NSN)	CR15H270[135]	5046LC	750 (lithium) 600/800 (Li-ion types)	3 (lithium) 3.6 (Li-ion)	Cylinder	+: Nub cylinder end −: Flat opposite end	H: 27 mm Ø: 15.6 mm	Standard discharge current: 10 mA A common battery type in cameras and photographic equipment. In Switzerland as of 2008[update], these batteries accounted for 6% of lithium camera battery sales.[74]
	2CR5	EL2CR5 DL245 RL2CR5 KL2CR5 6135-99-577-2940 (NSN)	2CR5	5032LC[136]	1,500	6	Double cylinder. Keyed.	Both on one end. Terminal center spacing 16 mm.	H: 45 mm L: 34 mm W: 17 mm	Commonly used in film and digital cameras. Shaped so that it can be inserted into a battery compartment only one way. Contains 2 CR123A cells.[137]
	CR-P2	BR-P2 223A CR17-33 5024LC	CR-P2	5024LC[138]	1,500	6	Double cylinder. Keyed.	Both on one end. Terminal diameter: 8.7 mm Terminal center spacing: 16.8 mm.	H: 36 mm L: 35 mm W: 19.5 mm	Shaped so that it can be inserted into a battery compartment only one way. Typical mass: 37 g. They contain two 3 V cells exchangeable with CR123 cells.
	CR-V3	CRV3 RCR-V3 (Li-ion)		5047LC 5047LF (primary)[139]	3,000 (lithium) 1,300 (Li-ion)	3 (lithium) 3.6 (Li-ion)	Double cylinder flat pack. Keyed.	Both on one end	H: 52.20 mm L: 28.05 mm W: 14.15 mm	The same size as two R6 (AA) cells side by side. A rechargeable type is also made in this size. May be used in some devices not explicitly designed for CR-V3, especially digital cameras.
	CP1	DLCP1 DL-CP1C	CP3553[140]		2,300[141]	3	Prismatic.	Both on one end.	H: 57 mm L: 35 mm W: 7 mm	Shaped so that it can be inserted into a battery compartment only one way. No longer made by Duracell, nor listed in its official website, but still stocked as of 28 February 2017 by some re-sellers. Typical mass: 1.1 oz (31 g).[141] Disposable equivalent of the Nikon EN-EL5 Li-ion rechargeable camera battery.[140]
	7R31	Kodak K 7R31 538				4 (mercury) 4.5 (alkaline)	Cartridge	Negative along side of the body; positive on the front, nose of the battery	Approx: H: 11 mm L: 40 mm W: 16 mm	Typically a cartridge of three mercury button cells for use in 110 format cameras. The later version of the battery used alkaline batteries.

Coin-shaped cells are thin compared to their diameter. Polarity is usually stamped on the metal casing.

The IEC prefix "CR" denotes lithium manganese dioxide chemistry. Since LiMnO₂ cells produce 3 volts there are no widely available alternative chemistries for a lithium coin battery. The "BR" prefix indicates a round lithium/carbon monofluoride cell. See lithium battery for discussion of the different performance characteristics. One LiMnO₂ cell can replace two alkaline or silver-oxide cells.

IEC designation numbers indicate the physical dimensions of the cylindrical cell. Cells less than one centimeter in height are assigned four-digit numbers, where the first two digits are the diameter in millimeters, while the last two digits are the height in tenths of millimeters. Taller cells are assigned five-digit numbers, where the first two digits are the diameter in millimeters, followed by the last three digits indicating the height in tenths of millimeters.

All these lithium cells are rated nominally 3 volts (on-load), with open-circuit voltage about 3.6 volts. Manufacturers may have their own part numbers for IEC standard size cells. The capacity listed is for a constant resistance discharge down to 2.0 volts per cell.^[142]

In the following table, sizes are shown for the silver-oxide IEC number; types and capacity are identified as "(L)" for alkaline, "(M)" for mercury (no longer manufactured), and "(S)" for silver-oxide. Some sizes may be interchangeably used in battery holders. For example, the 189/389 cell is 3.1 mm high and was designated 1131, while the 190/390 size is 3.0 mm high and was designated 1130, but a battery holder will accept either size.

Miniature zinc-air batteries are button cells that use oxygen in air as a reactant and have very high capacity for their size. Each cell needs around 1 cm³ of air per minute at a 10 mA discharge rate. These cells are commonly used in hearing aids. A sealing tab keeps air out of the cell in storage; a few weeks after breaking the seal the electrolyte will dry out and the battery becomes unusable, regardless of use. Nominal voltage on discharge is 1.2 V.

Lithium-ion rechargeable batteries are generally not interchangeable with primary types using a different chemistry, due to their higher voltage. Many are also available with protection circuits that can increase their physical length; for example, an 18650 is around 65 mm (2.56 in) long, but may be around 68 mm (2.68 in) long with a protection circuit. Some such circuits increase cell diameter instead. The increased dimensions may mean the cell will no longer fit in battery compartments intended for cells without such circuitry.

Commonly-used designation numbers indicate the physical dimensions of the cylindrical cell, as given in IEC standard 60086-1 for cylindrical primary cells. The first two digits are the nominal diameter of the cell in millimetres, and the two following digits are generally the height in millimeters, with the fifth digit indicating cylindrical shape. Alternately, the last three digits can refer to the height in tenths of a millimeter. Manufacturers may use non-IEC designations for their products.

These types are associated with legacy applications, such as for vacuum tube equipment (A, B, and C batteries), or are no longer manufactured.

(V) = Nominal voltage

Names				Typical capacity (mAh)	(V)	Ter­minal layout	Dimen­sions (mm)	Comments
Most common	Other common	IEC	ANSI
523	PX21	3LR50	1306A	580 (alkaline)	4.5 V		D: 17.1 H: 49.9	Used in cameras and Apple Macintosh computers (such as the 128K through 512K and similar). As the IEC name suggests, this is often just 3 LR50 batteries stacked together.
531	PX19	3LR50	1307AP	580 (alkaline)	4.5 V		D: 17.1 H: 58.3	A 523 with snap connectors attached to either end. Used in some older cameras, notably the Polaroid Automatic Land Camera packfilm models.
No. 6	Ignition Cell, 6135-99-114-3446 (NSN) FLAG (in UK)	R40	905	35,000–40,000  (carbon‑zinc)	1.5 V		D: 67 H: 172	Typical 20th century uses for this high capacity dry cell named for its 6-inch height include school science experiments, and starting glow plug model engines and in antique equipment. This dry cell is commonly used in the UK for remote level crossing telephone handsets, where solar cells and rechargeable batteries have not been specified or retrofitted. These were formerly used in primary cell powered alarms (those without mains power) and associated bell ringing, servant or nurse call systems, ignition systems, telephones,[241] to improve voice quality on long lines to the local switch by increasing the off hook line voltage, impulse wound clocks (once a minute a mechanical movement pulses to advance electrically driven hands), and (in pairs) in WWII US Navy battle lanterns. Modern cells identified as alkaline may be one or more 'D' cells in a holder. The terminal posts are threaded 8–32 (Unified Thread Standard), insulated terminal nuts are normally provided, conical profile helical spring terminals are added for specific applications. Stamped and formed sheet metal spring terminals for bare wire connections (fahnestock clips) were supplied for use with telephones; e.g., the Western Electric 'Blue Bell' KS-6456 printed in blue ink on a grey paper and the Eveready 'Colombia Gray Label' printed in red ink on grey paper. +: centre; −: edge.
A Battery	Eveready 742				1.5 V	Metal tabs	H: 101.6 L: 63.5 W: 63.5	Used to provide power to the filament of a vacuum tube.
B Battery	Eveready 762-S				45 V	Threa­ded posts	H: 146 L: 104.8 W: 63.5	Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies. Multiple B batteries may be connected in series to provide voltages as high as 300 V DC. Some versions have a tap at 22.5 volts.
GB Battery	C Battery Eveready 761				1.5 to 9 V	Threa­ded posts or banana sockets	H: 76.2 L: 101.6 W: 31.75	Originally used in vintage vacuum tube equipment for grid bias. Still popular for school science class use as a variable voltage supply as the current version has several taps at 1.5 volt intervals.
791	Eveready 791 Eveready 791-A	2R14			3 V		D: 23.81 H: 98.43	Equivalent to two C batteries (BA-42) in series. Used in the M1 Bazooka.
15-volt	Fuji W10 Mallory M154 NEDA 220 Rayovac 220	10F15 (Zn/MnO2)	220	65	15 V (10 cells)	Flat round (one each end)	H: 34.9 L: 15.1 W: 15.9	Used in older instruments[242] and old battery–capacitor flashes. Used in Bang & Olufsen Beomaster 2400 remote controls. Still being manufactured as of 2020.[243]
22.5-volt	Eveready 412	15F20 (Zn/MnO2)	215	140	22.5 V (15 cells)	Flat round (one each end)	H: 50 L: 25 W: 15	Used in older instruments.[244] the Regency TR-1 (first transistor radio) and old battery–capacitor flashes. These are also sometimes known as B batteries, but are very distinct from actual B cell batteries.
30-volt	Eveready 413	20F20 (Zn/MnO2)	210	140	30 V (20 cells)	Flat round (one each end)	H: 64 L: 25 W: 15	Used in older instruments.[245] These were sometimes sold as B batteries for hearing aids and small radios.
45-volt	Eveready 415	30F20 (Zn/MnO2)	213	140	45 V (30 cells)	Both on same end	H: 91 L: 26 W: 15	Used in older instruments.[246] Sometimes were sold as B batteries.
67.5-volt	Eveready 416		217	140	67.5 V (45 cells)	Both on same end	H: 88 L: 33 W: 25	Used in older instruments.[247] Many of these were sold as B batteries for early transistor radios (before their function was replaced by the 9-volt PP3 battery).

The PP (Power Pack) series was manufactured by Ever Ready in the UK (Eveready in the US). The series comprised multi-cell carbon-zinc batteries used for portable electronic devices. Most sizes are uncommon today; however, the PP3 size (and to a lesser extent PP8, used in electric fencing, and PP9) is readily available.^[248] The PP4 was cylindrical; all the other types were rectangular. Most had snap terminals as seen on the common PP3 type. These came in two incompatible sizes, as is evident in some of the pictures below, those on larger, mostly older, battery types such as the PP9 being somewhat larger than those on the smaller batteries such as the PP3.

(V) = Nominal voltage

Image (with PP3/E-size for scale)	Names		Typical capacity (mAh)	(V)	Dimen­sions (mm)	Comments
	PP	Other common
	PP1			6	H: 55.6 L: 65.5 W: 55.6	This battery had two snap connectors spaced 35 mm (1+3⁄8 in) apart.
	PP3	See PP3 battery
	PP4	226 NEDA 1600 IEC 6F24		9	H: 50.0 Diameter: 25.5
	PP6	246 NEDA 1602 6135-99-628-2361 (NSN) IEC 6F50-2	850	9	H: 70.0 L: 36.0 W: 34.5	Center distance between terminals is max. 12.95 mm with both offset 7 mm nominal from the wider battery edge. Mass is 120 g.
	PP7	266 NEDA 1605 6135-99-914-1778 (NSN) IEC 6F90	2,500	9	H: 63 L: 46 W: 46	Center distance between terminals is max. 19.2 mm. Mass is 200 g.
	PP8	SG8 "Fencer"		6	H: 200.8 L: 65.1 W: 51.6	This battery typically had two snap connectors; however, four[clarification needed] connector versions are available. They were spaced 35 mm (1+3⁄8 in) apart. This type of battery is sometimes used in electric fencing applications.
	PP9	276 NEDA 1603 6135-99-945-6814 (NSN) IEC 6F100	5,000	9	H: 81.0 L: 66.0 W: 52.0	This battery has two snap connectors spaced 35 mm (1+3⁄8 in) apart.
	PP10			9	H: 226.0 L: 66.0 W: 66.0	This battery had two-pin connectors. They were a single ⌀3.2 mm negative pin and a single ⌀4.0 mm positive pin spaced 13.0 mm apart.
	PP11			4.5 + 4.5	H: 91.3 L: 65.1 W: 52.4	This battery contained two independent 4.5 V batteries, and had a four-pin connector. 9 V with a center tap was available by wiring in series. There were two ⌀3.2 mm negative pins spaced 9.5 mm apart and two ⌀4.0 mm positive pins spaced 14.3 mm apart. Negative and positive pins were spaced 18.1 mm apart. It was used in some early transistor radio amplifiers with a Class B output stage, allowing the loud speaker to be connected between the amplifier output and the battery center tap.

Obsolete

• IEC 60086-1: Primary batteries – Part 1: General
• IEC 60086-2: Primary batteries – Part 2: Physical and electrical specifications
• IEC 60086-3: Primary batteries – Part 3: Watch batteries
• IEC 60086-4: Primary batteries – Part 4: Safety of lithium batteries
• ANSI C18.1, Part 1 Portable Primary Cells and Batteries With Aqueous Electrolyte – General and Specifications
• ANSI C18.1, Part 2 Portable Primary Cells and Batteries With Aqueous Electrolyte Safety Standard
• ANSI C18.2, Part 1 Portable Rechargeable Cells and Batteries – General and Specifications
• ANSI C18.2, Part 2 Portable Rechargeable Cells and Batteries Safety Standard
• ANSI C18.3, Part 1 Portable lithium Primary Cells and Batteries – General and Specifications
• ANSI C18.3, Part 2 Portable lithium Primary Cells and Batteries Safety Standard
• MOD Defence Standard 61-017 The Selection and Introduction of Batteries and Fuel Cells for Service Use^{[clarification needed]}
• MOD Defence Standard 61-021 Generic Specification for Batteries

Wikimedia Commons has media related to Batteries by form factor.

• A growing list of battery equivalents and details. Courtesy of the Highfields Amateur Radio Club (Cardiff, UK). (Archived on 31 Jan 2016)
• Duracell Technical OEM Data Sheets
• Energizer/Eveready Data Sheets
• Energizer/Eveready European Data Sheets
• Energizer/Eveready Obsolete Battery Data Sheets
• Brand Neutral Drawings Of Common Batteries Based On ANSI C18-2007
• EU Report on battery labelling
• Batteries CROSS-REFERENCE INDEX