List of battery sizes ang type with images 

the term "battery" referred to a collection of electrochemical cells connected in series;^[1] however, in modern times the term has come to refer to any collection of cells (or single cell) packaged in a container with external connections provided to power electrical devices,^[2] leading to the variety of standardized form factors available today.

Cylindrical cells typically have a positive terminal nub at one end, and a flat negative terminal at the other. A cell with a nub on the positive terminal is called a button-top, and a cell without a positive nub is called a flat-top. Two different cells of the same nominal size, e.g. two 18650 cells, may have different diameter buttons if made by different manufacturers, and this can lead to incompatibility with devices. Flat-top cells cannot be used in series without modification or soldering into position, because the flat positive terminal of one cell cannot contact with the next cell's negative terminal. Rarely, however, a manufacturer may include tiny bumps on the negative terminal, so flat-tops can be used in series.

Cylindrical batteries[edit]

Typical cylindrical cells have a positive nub terminal at the cap of the cell, and the negative terminal at the bottom of the can; the side of the can is not used as a terminal. The polarity of the can side may even change, according to their chemistry and whether the can is sealed from the positive or negative end. The internal cell construction may differ, common types are named bobbin, spiral and coiled.^[7] Their naming originates mainly from the Battery nomenclature § ANSI battery nomenclature.These are round batteries with height longer than their diameter. In zinc-carbon or alkaline types they produce around 1.5 V per cell when fresh. Other types^[6] produce other voltages per package, as low as 1.2 V for rechargeable nickel-cadmium, up to 12 V for the A23 alkaline battery, a stack of 8 cells in the same overall format.

Image (AA size for scale)	Names				Typical capacity (mAh)	Nominal voltage (V)	Size, dia. × h. (mm)	Comments
	Most common	Other common	IEC	ANSI
	4⁄5AA	FLYCO Ni-Cd, Ni-Mh			600–1500	1.2	14.0 × 40.0	Same diameter as AA battery, used in small electronics, including electric shaver.
	1⁄2AA	SAFT LS14250 Tadiran TL5101 UL142502P	CR14250 (LiMnO2) ER14250 (LiSOCl2)		850–1200	3 (LiMnO2) 3.6 (LiSOCl2)	14.0 × 25.0 (nom.) 14.5 × 25.0 (max.)	Same diameter as AA battery, used in small electronics, including pulse oximeters, as well as use in some computer models (such as most pre-Intel Macintosh models and some older IBM PC compatibles) as the CMOS battery. Also used in US military MILES gear and DAGR.
	AAAA	MX2500 Mini UM 6 (JIS) 単6 #9 (China)	LR8D425 (alkaline)	25A (alkaline)	625 (alkaline)	1.5	8.3 × 42.5	Sometimes used in pen flashlights, laser pointers, powered styluses, calculators, fishing lures.
	AAA	U16 or HP16 (In the UK) Micro Microlight MN2400 MX2400 MV2400 Type 286 (Soviet Union/Russia) UM 4 (JIS)(carbon-zinc) [8] 単4 AM-4 (JIS)(alkaline) #7 (China) 6135-99-117-3143 (NSN)	LR03 (alkaline) R03 (carbon–zinc) FR03 (LiFeS2) HR03 (NiMH) KR03 (NiCd) ZR03 (NiOOH)	24A (alkaline) 24D (carbon–zinc) 24LF (LiFeS2)	1200 (alkaline) 540 (carbon–zinc) 800–1200 (NiMH) 500 (NiZn)	1.5 1.2 (NiMH, NiCd)	10.5 × 44.5 (0.41 × 1.75)	Introduced 1911, but added to ANSI standard in 1959 Used in many household electronic devices
	AA	U12 or HP7 (In the UK) Pencil-sized Penlight Mignon MN1500 MX1500 MV1500 Type 316 (Soviet Union/Russia) UM 3 単3 (JIS)(carbon-zinc) AM-3 (JIS)(alkaline) #5 (China) 6135-99-052-0009 (NSN)(carbon-zinc) 6135-99-195-6708 (NSN)(alkaline)	LR6 (alkaline) R6 (carbon–zinc) FR6 (LiFeS2) HR6 (NiMH) KR6 (NiCd) ZR6 (NiOOH)	15A (alkaline) 15D (carbon–zinc) 15LF (LiFeS2) 1.2H2 (NiMH) 1.2K2 (NiCd)	2700 (alkaline) 1100 (carbon–zinc) 3000 (LiFeS2) 1700–2800 (NiMH) 600–1000 (NiCd) 1500 (NiZn)	1.5 1.2 (NiMH, NiCd)	14.5 × 50.5 (0.57 × 1.99)	Introduced 1907, but added to ANSI standard sizes in 1947. Used in many household electronic devices Note: 14500 lithium batteries are not AA as they are 3.7 V; though 1.5 V AA compatibles (achieved with an internal voltage regulator [specifically a buck converter]) have been available since 2014 as were originally developed and released by Chinese company Kentli.[9]
	A		R23 (carbon‑zinc) LR23 (alkaline)			1.5	17 × 50	More common as a NiCd or NiMH cell size than a primary size, popular in older laptop batteries and hobby battery packs. Various fractional sizes are also available; e.g., 2⁄3 A and 4⁄5 A.
	B	U10 (UK) 336 (Russian Federation)	R12 (carbon‑zinc) LR12 (alkaline)		8350 (alkaline)	1.5	21.5 × 60	Most commonly found within a European 4.5 volt lantern battery. Not to be confused with the vacuum tube B battery.
	C	U11 or HP11 (In the UK) MN1400 MX1400 Baby Type 343 (Soviet Union/Russia) BA-42 (US Military Spec WWII–1980s)[citation needed] UM 2 (JIS) 単2 #2 (China) 6135-99-199-4779 (NSN)(carbon-zinc) 6135-99-117-3212 (NSN)(alkaline)	LR14 (alkaline) R14 (carbon–zinc) HR14 (NiMH) KR14 (NiCd) ZR14 (NiOOH)	14A (alkaline) 14D (carbon–zinc)	8000 (alkaline) 3800 (carbon–zinc) 4500–6000 (NiMH)	1.5 1.2 (NiMH, NiCd)	26.2 × 50 (1.03 × 1.97)	Can be replaced with an AA cell using a plastic sabot (size adaptor), with proportional loss of capacity.
	Sub-C SC	Type 332 (Soviet Union/ Russian Federation)	KR22C429 (NiCd) HR22C429 (NiMH)		1200–2400 (NiCd) 1800–5000 (NiMH)	1.2	22.2 × 42.9 (0.87 × 1.69)	A common size for cordless tool battery packs. This size is also used in radio-controlled scale vehicle battery packs and some Soviet multimeters. 1⁄2-, 4⁄5- and 5⁄4-sub-C sizes (differing in length) are also available. Soviet 332 type can be replaced with R10 (#4, 927, BF, U8) or 1.5 V elements from 3 V 2xLR10 packs.[10][11]
	D	U2 or HP2 (UK) Flashlight battery MN1300 MX1300 Mono Goliath Type 373 (Soviet Union/Russia) BA-30 (US Military Spec WWII–1980s) UM 1 (JIS) 単1 #1 (China) 6135-99-464-1938 (NSN)(carbon-zinc) 6135-99-109-9428 (NSN)(alkaline)	LR20 (alkaline) R20 (carbon–zinc) HR20 (NiMH) KR20 (Ni-Cd) ZR20 (NiOOH)	13A (alkaline) 13D (carbon–zinc)	12000 (alkaline) 8000 (carbon–zinc) 2200–11000 (NiMH) 2000–5500 (NiCd)	1.5	34.2 × 61.5 (1.35 × 2.42)	Introduced 1898 as the first flashlight battery. Can be replaced with an AA cell or a C cell using a plastic sabot (size adaptor), with proportional loss of capacity.
	F		R25 (carbon‑zinc) LR25 (alkaline)	60	10500 (carbon‑zinc) 26000 (alkaline)	1.5	33 × 91	Four F cells are often found within 6 volt rectangular lantern batteries.
	N	Lady MN9100 UM 5 (JIS) 単5 E90 6135-99-661-4958 (NSN)	LR1 (alkaline) R1 (carbon‑zinc) HR1 (NiMH) KR1 (NiCd)	910A (alkaline) 910D (carbon‑zinc)	800–1000 (alkaline) 400 (carbon‑zinc) 350–500 (NiMH)	1.5	12 × 30.2	Rechargeable nickel–cadmium and nickel–metal hydride are far less common than other rechargeable sizes.[12] Mercury batteries of the same dimensions are no longer manufactured.
	A11	A11 11A E11A MN11 L1016 4LR23 V11GA LR1016	4LR932 (alkaline)	1811A (alkaline)	55 (alkaline)	6	10.3 × 16.0	Usually contains a stack of four LR932 button cells shrink wrapped together.
	A23	144 23A 23AE 3LR50 8F10R 8LR23 8LR932 A23S CA20 EL12 E23A GP12A GP23 GP23A K23A L1028 LR23A LRV08 MN21 MN23 MS21 P23GA RVO8 VR22 V23GA[13]	8LR932 (alkaline)	1811A (alkaline)	55 (alkaline)	12	10.3 × 28.5	Used in small RF devices such as key fob-style garage door openers, wireless doorbells, and keyless entry systems where only infrequent pulse current is used. Usually contains a stack of eight LR932 button cells shrink wrapped together.
	A27	GP27A MN27 L828 27A V27A A27BP G27A	8LR732 (alkaline)		22 (alkaline)	12	8.0 × 28.2	Used in small RF devices such as car alarm remote controls. Can also be found in some cigarette lighters. May be made of eight LR632 cells.
	BA5800	BA5800/U (LiSOCl2) BA5800A/U (LiSO2)			7500 (LiSO2)	5.3 (LiSO2)	35.5 × 128.5	Has both terminals at the same end and is roughly the size of two stacked D cells. Used in military hand-held devices such as the PLGR.
	Duplex	Ever Ready No. 8	2R10			3	21.8 × 74.6	Internally contains two 1.5 V cells hence the nickname 'Duplex'. In Switzerland as of 2008, 2R10 batteries accounted for 0.003% of primary battery sales.[14]
	4SR44	PX28A A544 K28A V34PX 28L	4LR44 (alkaline)		110–150 (alkaline) 170–200 (silver‑oxide)	6.2 (alkaline) 6.5 (silver‑oxide)	13 × 25.2	Used in film cameras, medical instruments, dog training devices. Often simply a stack of four SR44 (LR44) button cells shrink wrapped together.

Rectangular batteries[edit]

Image (AA size for scale)	Names				Typical capacity (mAh)	Nominal voltage (V)	Terminal layout	Dimensions (mm)	Comments
	Most common	Other common	IEC	ANSI
	4.5-volt	1289 (in the UK) Pocketable battery 4.5 V MN1203 Type 3336 (Soviet Union/Russia)	3LR12 (alkaline) 3R12 (carbon‑zinc)	3LR12 (alkaline) 3R12 (carbon‑zinc)	6100 (alkaline) 1200 (carbon‑zinc)	Alkaline carbon‑zinc (3 cells): 4.5	Two 6–7 mm wide metal strips +: shorter strip −: longer strip	H: 67 L: 62 W: 22	This battery, introduced in 1901, was very common in continental Europe until the 1970s. It usually contains three B cells in series. In Switzerland as of 2008, 4.5-volt batteries account for only 1% of primary battery sales.[15]
	PP3, 9-volt, or E[16]	Radio battery Smoke alarm battery Square battery Transistor battery 006P MN1604 Type Krona (Soviet Union/Russia)	6LR61 (alkaline) 6LP3146 (alkaline) [17] 6F22 (carbon‑zinc) 6KR61 (NiCd) 6HR61 (NiMH)	1604A (alkaline) 1604D (carbon‑zinc) 1604LC (lithium) 7.2H5 (NiMH) 11604 (NiCd) 1604M (mercury, obsolete)[18]	565 (alkaline) 400 (carbon‑zinc) 1,200 (lithium) 175–300 (NiMH) 120 (NiCd) 500 (lithium polymer rechargeable) 580 (mercury, obsolete)	Alkaline carbon‑zinc (6 cells): 9 Lithium (3 cells): 9 NiMH / NiCd (6, 7 or 8 cells): 7.2, 8.4 or 9.6[19]	Both on same end +: male clasp −: female clasp	H: 48.5 L: 26.5 W: 17.5	Added to ANSI standard in 1959. Often contains six LR61 cells, which are similar to AAAA cells.
	6-volt Lantern (Spring)	Lantern 6 V Spring top MN908 996 or PJ996 Energizer 529	4LR25Y (alkaline) 4R25 (carbon‑zinc)	908A (alkaline) 908D (carbon‑zinc)	26,000 (alkaline) 10,500 (carbon‑zinc)	Alkaline carbon‑zinc (4 cells): 6	Springs, top +: corner spring −: center spring	H: 115 L: 68.2 W: 68.2	Spring terminals. Usually contains four F cells.
	Lantern (Screw)	Lantern 6 V Screw Top 6135-99-645-6443 (NSN)	4R25X (carbon‑zinc) 4LR25X (alkaline)	915 (carbon‑zinc) 915A (alkaline)	10,500 (carbon‑zinc) 26,000 (alkaline)	6	Screw posts on top of battery. +: corner, −: center. Maximum diameter of the posts is 3.5 mm.	H: 109.5 L: 66.7 W: 66.7	Used in locations susceptible to high vibration/shock where connectors may be knocked off the terminals.
	Lantern (Big)	918 R25-2 Big Lantern Double Lantern MN918 Energizer 521	4R25-2 (carbon‑zinc) 4LR25-2 (alkaline)	918A	22,000 (carbon‑zinc) 52,000 (alkaline)	6	Screw posts on top of battery. Labelled only, no physical keying for polarity. Maximum diameter of the posts is 4.2 mm spaced 75 mm apart.	H: 125.4 L: 132.5 W: 73	Used in locations susceptible to high vibration/shock where connectors may be knocked off the terminals.
	J	7K67	4LR61 (alkaline)	1412A (alkaline)	625 (alkaline)	6	6.5 mm² flat contacts, +: chamfered corner, −: top side	H: 48.5 L: 35.6 W: 9.18	Typically used in applications where the device in question must be flat, or where one should not be able to insert the battery in reverse polarity. Often contains four LR61 cells, which are similar AAAA cells.

Camera batteries[edit]

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)	1500 (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[20]	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, these batteries accounted for 16% of lithium camera battery sales.[14] Used in flashlights and UV water purifiers.[21]
	CR2	15270 (Li-ion rechargeable, 800 mA) 15266 (Li-ion, 600 mA) 6135-99-606-3982 (NSN)	CR15H270[22]	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, these batteries accounted for 6% of lithium camera battery sales.[14]
	2CR5	EL2CR5 DL245 RL2CR5 KL2CR5 6135-99-577-2940 (NSN)	2CR5	5032LC[23]	1500	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.[24]
	CR-P2	BR-P2 223A CR17-33 5024LC	CR-P2	5024LC[25]	1500	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)[26]	3000 (lithium) 1300 (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[27]		2300[28]	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).[28] Disposable equivalent of the Nikon EN-EL5 Li-ion rechargeable camera battery.[27]
	7R31	Kodak K 7R31 538				4 (mercury) 4.5 (alkaline)	Cartridge	Negative along body, positive side of battery exposed for positive	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.

Button cells – coin, watch[edit]

See also: Button cell

Lithium cells[edit]

Coin cells of various diameters and thicknesses.

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.^[29]

No.	Names		Typical capacity (mAh)	Standard discharge current (mA)	Dimensions d × h (mm)	Comments
	IEC	ANSI
1	CR927		30		9.5 × 2.7	Used extensively in blinkies. Also used in some Lego toys.
2	CR1025	5033LC	30	0.1	10 × 2.5
3	CR1130		70		11.5 × 3.0	A rare battery, sometimes used in car security (car alarm/keyfob batteries), organizer (backup battery for PDA such as Psion etc.), and some pedometers. Also known as DL1130, BR1130, KL1130, L1130, ECR1130, KCR1130, E-CR1130, KECR1130[30][31]
4	CR1216	5034LC	25	0.1	12.5 × 1.6	Used in some lighted watches and some LED decorator lights (electronic tea candles).
5	CR1220	5012LC	35–40	0.1 (CR) 0.03 (BR)	12.5 × 2.0	Used in keychain LED flashlights, and in some digital cameras to keep the time and date function running even when the main battery is taken out of the camera.[32][33]
6	CR1225	5020LC	50	0.2	12.5 × 2.5	Maximum discharge current: 1 mA. Maximum pulse discharge current: 5 mA.
7	CR1616		50–55	0.1	16 × 1.6	Used in automobile key remotes and in Game Boy cartridges (for powering the RAM for saved games).
8	CR1620	5009LC	75–78	0.1	16 × 2.0	Used in automobile key remotes and early digital watches.
9	CR1632		140 (CR) 120 (BR)	0.1 (CR) 0.03 (BR)	16 × 3.2	Used in automobile key remotes; e.g., Toyota Prius 2012.
10	CR2012		55	0.1	20 × 1.2
11	CR2016	5000LC	90	0.1 (CR) 0.03 (BR)	20 × 1.6	Frequently used in digital watches. Often used in pairs instead of CR2032 for devices that require more than 3 V, like blue/white LED flashlights.
12	CR2020		115–125		20 × 2
13	CR2025	5003LC	160–165	0.2	20 × 2.5	Frequently used in digital watches and automobile remotes.
14	CR2032	5004LC	225 (CR) 190 (BR)	0.2 (CR) 0.03 (BR)	20 × 3.2	Maximum discharge current: 3 mA. Maximum pulse discharge current: 15 mA. This is also the most common lithium cell. Commonly used on computer motherboards as nonvolatile BIOS memory and real-time clock (RTC) backup batteries, device remote controls, remote key fobs for cars and other vehicles. Also in other devices such as key finders like Apple's AirTag. Weighs around 2.9 g.[34]
15	CR2040		280		20 × 4.0	Used in Skytronic PRO Audible Altimeter but also flow meters and organizers (as a memory backup battery). Has become obsolete and hard to find. Other names are BR2040, DL2040, ECR2040, E-CR2040, KCR2040, KECR2040, KL2040, L2040, L24.
16	CR2050		350		20 × 5.0	Available.
17	CR2320		110–175 [35][36][37]		23 × 2
18	CR2325		165–210		23 × 2.5
19	CR2330		265 (CR) 255 (BR)	0.2 (CR) 0.03 (BR)	23 × 3.0
20	BR2335[38]		165 (BR)		23 × 3.5
21	CR2354		560	0.2	23 × 5.4
22	CR2412		100	0.2	24.5 × 1.2
23	CR2430	5011LC	270–290		24.5 × 3.0	Used in XBand Modem to save updates and profile data.
24	CR2450	5029LC	610–620		24.5 × 5.0	Portable devices requiring high current (3.0 mA) and long shelf life (up to 10 years)
25	CR2477		1000	0.2	24.5 × 7.7	Has the highest capacity of lithium button cell batteries.[39]
26	CR3032		500–560 (CR) 500 (BR)	0.1-0.2 (CR) 0.03 (BR)	30.0 × 3.2	Continuous discharge current taken from Panasonic Catalog.
27	CR11108		160		11.6 × 10.8	Also called CR1/3N because it is 1⁄3rd the height of an alkaline N cell, and a stack of three of them will form a battery with the same dimensions as an N cell, but with 9 V terminal voltage. Such 9 V batteries in a single package do exist but are rare and only usually found in specialist applications; they can be referred to as 3CR1/3N. However, 2CR1/3N, a 6 V battery consisting internally of a stack of two CR1/3N and standardized by ANSI as 1406LC and by IEC as 2CR13252 (though some datasheets state it as 2CR11108 instead), is sold by Duracell (PX28L[40]), Energizer (L544, now obsolete[41]), and others. A CR1/3N is also used by photographers instead of two LR44 batteries in cameras.

Silver oxide and alkaline cells[edit]

Round button cells have heights less than their diameter. The metal can is the positive terminal, and the cap is the negative terminal.

Button cells are commonly used in electric watches, clocks, and timers. IEC batteries that meet the international IEC 60086-3 standard for watch batteries^{[42][clarification needed]} carry a "W" suffix. Other uses include calculators, laser pointers, toys, LED "blinkies", and novelties.

IEC designation numbers indicate the physical dimensions of the cylindrical cell. Cells less than one centimeter in height are assigned 4-digit numbers, where the first 2 digits are the diameter in millimeters, while the last 2 digits are the height in tenths of millimeters. Taller cells are assigned 5-digit numbers, where the first 2 digits are the diameter in millimeters, followed by the last 3 digits indicating the height in tenths of millimeters.

Assorted sizes of button and coin cells, including alkaline and silver oxide chemistries. Four rectangular 9 V batteries are also shown, for size comparison. Enlarge to see the button and coin cell size code markings.

In the IEC designations, cell types with an "SR" prefix use silver oxide chemistry and provide 1.55 volts, while the "LR" prefix batteries use alkaline chemistry and provide 1.5 volts. Common alternative manufacturer's prefixes for these two types are "SG" for silver oxide and "AG" for alkaline. Since there are no "common" names beyond the AG designation, many vendors use these four designations interchangeably for the same physical sized cell.

The functional differences are that silver oxide batteries typically have 50% greater capacity than alkaline chemistry, relatively slowly declining voltage during discharge compared to alkaline types of the same size, and superior leakage resistance. The ultimate energy capacity of a silver battery may be as much as twice that of an alkaline. Also, a silver cell with a flat discharge characteristic is preferable for devices that need a steady voltage, such as photographic light meters, and devices that will not operate below a certain voltage; for example, some digital calipers, which do not work below 1.38V.

Alkaline batteries are usually cheaper than silver oxide equivalents. Inexpensive devices are sometimes supplied fitted with alkaline batteries, though they would benefit from the use of silver oxide batteries. Exhausted silver oxide cells are often recycled to recover their precious metal content, whereas depleted alkaline cells are discarded with household trash or recycled, depending on the local practices.

Mercury batteries were formerly commonly made in button sizes for watches, but due to careless disposal and the resulting mercury pollution hazard, they are no longer available. This is also a concern for users of vintage camera equipment, which typically used a mercury button battery in the exposure meter for its very steady voltage characteristic. Substitute non-mercury batteries have been produced to replace certain discontinued mercury batteries, typically by incorporating a miniature voltage regulator to simulate the flat voltage discharge characteristics of the original batteries.

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.

Names				Typical capacity (mAh)	Dimensions dia × h (mm)	Comments (L), alkaline (S), silver-oxide
Most common	Other common	IEC	ANSI
SR41	AG3/SG3/G3-A LR41 192/384[43]/392 6135-99-949-0402 (NSN)(S) QR41	LR736 (L) SR736 (S)	1135SO (S) 1134SO (S)	25–32 (L) 38–45 (S)	7.9 × 3.6
SR42	242[44] 344[43]/350[45] 387S[46]	SR1136 (KOH electrolyte, 344/350) SR1136S (NaOH electrolyte, 387S)	1139SO	63 (387S) 100 (344/350)	11.6 × 3.6
SR43	AG12/SG12 LR43 L1142 186/301[43]/386 6135-99-547-0573 (NSN)(S)	LR1142 (L) SR1142 (S)	1133SO (S) 1132SO (S)	80 (L) 120–125 (S)	11.6 × 4.2
SR44	AG13/SG13 LR44/LR154 6135-99-792-8475 (NSN)(alkaline) 6135-99-651-3240 (NSN)(S) A76/S76/EPX76 157/303[43]/357 1128MP, 208-904, A-76, A613, AG14, AG-14, CA18, CA19, CR44, D76A, G13A, G13-A, GDA76, GP76A, GPA7, GPA75, GPA76, GPS76A, KA, KA76, AG76, L1154, L1154C, L1154F, L1154G, L1154H, LR44G, LR44GD, LR44H, MS76H, PX76A, PX675A, RPX675, RW82, SB-F9, V13G, 357A	LR1154 (L) SR1154 (S)	1166A (L) 1107SO (S) 1131SOP (S)	110–150 (L) 170–200 (S)	11.6 × 5.4	Typical internal resistance: 8 ohms
SR45	AG9/SG9 LR45 194/394/380[43] 6135-99-782-4675 (NSN)(S)	LR936 (L) SR936 (S)		48 (L) 55–82 (S)	9.5 × 3.6
SR48	AG5/SG5 LR48 L750 193/309[43]/393	LR754 (L) SR754 (S)	1136SO (S) 1137SO (S)	52 (L) 70 (S)	7.9 × 5.4
LR52	A640PX, E640, EN640A, EPX640A, MR52, PX640, PX640A[47]	LR52 (L) MR52 (M)	1126A (L)[48]	335 (L)[48]	15.8 × 11.1[48]	1.5 V (L), 1.35 V (M) No longer made by Duracell or Energizer, but still stocked by some re-sellers as of 26 February 2017[47]
SR54	AG10/SG10/G10-A LR54 189/387/389/390[43] L1131/LR1130/SR1130 6135-99-796-0471 (NSN)(S)	LR1131 (L) SR1131 (S)	1138SO (S)	44–68 (L) 80–86 (S)	11.6 × 3.1
SR55	AG8/SG8 LR55 191/381[43]/391 LR1120/SR1120	LR1121 (L) SR1121 (S)	1160SO (S)	40–42 (L) 55–67 (S)	11.6 × 2.1
	365, 366,[43] S16, 608	SR1116SW	1177SO [49]	28–40[50][51]	11.6 × 1.65	1.55 V
SR56		SR1126			11.6 × 2.6	Listed in IEC 60086-2:2001, but apparently no longer manufactured by any major company.
SR57	AG7/SG7 LR57 195 395(low-drain)[43]/399(high-drain)[52] LR927/SR927 SR927W/SR927SW/GR927 6135-99-796-0471 (NSN)(S)	LR926 (L) SR926 (S)	1165SO (S)	46 (L) 55–67 (S)	9.5 × 2.6
SR58	AG11/SG11 LR58 162/361/362[43]	LR721 (L) SR721 (S)	1158SO (S)	18–25 (L) 33–36 (S)	7.9 × 2.1
SR59	AG2/SG2 LR59 196/396/397[43]	LR726 (L) SR726 (S)	1163SO (S)	26 (L) 30 (S)	7.9 × 2.6
SR60	AG1/SG1 LR60 164/364[43]	LR621 (L) SR621 (S)	1175SO (S)	13 (L) 20 (S)	6.8 × 2.1
SR62	SR516SW 317[43]	LR516 (L) SR516 (S)		11 (S)	5.8 × 1.6
SR63	AG0/SG0 LR63 379[43]	LR521 (L) SR521 (S)		10 (L) 18 (S)	5.8 × 2.1
SR64	LR64 319[43]	LR527 (L) SR527 (S)		12 (L) 20 (S)	5.8 × 2.7
SR65	SR616SW 321[43]	LR65 Varta V321			6.8 × 1.65
SR66	AG4/SG4 LR66 177/376/377[43] SR626SW	LR626 (L) SR626 (S)	1176SO (S)	12–18 (L) 26 (S)	6.8 × 2.6	Commonly used in many wrist watches.
SR67	315[43]	SR716 (S)		21 (S)	7.9 × 1.65
SR68	SR916SW 373[43]	LR916 (L) SR916 (S)		26 (S)	9.5 × 1.6
SR69	AG6/SG6 LR69 171/370/371[43] LR920/SR920	LR921 (L) SR921 (S)		30 (L) 55 (S)	9.5 × 2.1
SR416	SR416SW 337[43]	LR416 (L) SR416 (S)		8 (S)	4.8 × 1.6
SR512	335[43]	SR512SW		5.5 (S)	5.8 × 1.3
SR712	SR712SW	SR712 (S)		9 (S)	7.9 × 1.3
SR731	SR731SW 24 329[43]	LR731 (L) SR731 (S)		36 (S)	7.9 × 3.1
LR932		LR932 (L)		40 (L)	9.3 × 3.2	Rarely used independently. 8 of these in series are used to form an A23 battery.
LR9	625 V625U			190 (L)	15.5 × 6.0	Its diameter is smaller on the other end.

Zinc air cells (hearing aid)[edit]

Zinc-air hearing aid batteries

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 cc 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.

Names				Typical capacity (mAh)	Dimensions dia. × h. (mm)	Comments
Most common	Other common	IEC	ANSI
5	Red tab, AC5, ZA5	PR63	7012ZD	33	5.8 × 2.5	Marked as "discontinued" in Energizer data sheet.[53]
10	Yellow tab, AC10, AC10/230,[54] DA10, DA230, ZA10[55][56]	PR70	7005ZD	91	5.8 × 3.6
13	Orange tab, ZA13	PR48	7000ZD	280	7.9 × 5.4
312	Brown tab 6135-99-752-3528 (NSN) ZA312	PR41	7002ZD	160	7.9 × 3.6
630	DA630[54]		7007Z	1,000	15.6 × 6.2	No longer listed by Duracell
675	Blue tab, ZA675	PR44	7003ZD	600	11.6 × 5.4
AC41E		PR43	7001Z	390	11.6 × 4.2	Discontinued

Lithium-ion batteries (rechargeable)[edit]

An alkaline AA size battery and an 18650 size lithium ion battery

Cylindrical lithium-ion rechargeable battery[edit]

Lithium-ion rechargeable batteries are generally not interchangeable with primary types using a different chemistry. Many are also available with internal 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 an internal 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 three following digits are the height in millimeters. Manufacturers may use non-IEC designations for their products.

Names		Typical capacity (mAh)	Dimensions (mm)		Comments
Id.	Other common		Diameter	Length
07540		80–150	7.5	40	Used in some Electronic cigarettes.
08570		280	8.5	70	Used in some Electronic cigarettes.[citation needed]
10180	Lithium ion 1⁄3 AAA	90	10	18	Sometimes called 1⁄3 AAA. Used in tiny flashlights.
10280	Lithium ion 2⁄3 AAA	200	10	28	Used in small flashlights.
10440[57]	Lithium ion AAA	250–350[58]	10	44	Same size as AAA cell.
14250	Lithium ion 1⁄2 AA	300	14	25	Same size as 1⁄2 AA cell. Used in the flashlight Lummi RAW.
14300	Lithium ion 3⁄5 AA	520, 540	14	30	Slightly longer than a 14250 due to an integrated Micro-USB receptacle and charging controller. Semi-proprietary, used in FOLOMOV C2 and EDC C2 mini flashlights.
14430		400–600[59]	14	43	Used in solar garden lights, toys, rechargeable shavers (e.g., some Philips/Norelco).[citation needed]
14500[60]	Lithium-ion AA	700–1000[61][62]	14	53	Similar size as AA cell. Those with a protection circuit are slightly longer. Variations include rechargeable Kentli 1.5 V lithium AAs (2800 mAh) and non-rechargeable SAFT-brand primary cells (2600 mAh)[63][64] Used in many LED flashlights. Nominal voltage is 3.7 V.
14650[65]		940–1200[66]	14	65	Approximately 5⁄4 the length of a AA cell.
15270[67]	RCR2	450–600	15	27	Substitute for CR2 primary lithium. Nominal voltage usually is 3 V.
16340	RCR123A	550–800[68]	16	34	Alternate substitute for CR123A primary lithium.[69] Unprotected. (16 × 36, some protected versions[70]).
16650		1600–2500[71]	16	65	Made by Sanyo and a few others, narrower version of 18650 cells.[citation needed]
17500[72][73]	A	830–1200[74][75]	17	50	The same size as an A cell, and 1.5 times the length of a CR123A. SAFT-brand cells (3600 mAh) are non-rechargeable.
17650		1200–1600[76]	17	65	Between the size of a 16650 and 18650.
17670[77][78]		1250–1600[79]	17	67	Twice the length of a standard CR123A.
18350		700–1200[80]	18	35	[69]
18490[81]		800–1400[82]	18	49	Slightly shorter than a 18500 cell.
18500[83][84]		1100–2040[85]	18	50	About the same length as an AA cell, but larger diameter.
18650[86][87]	168A, 1865	1500–3500[88]	18	65	This cell type is used in many laptop computer batteries, cordless power tools, certain electric cars, electric kick scooters,[89] most e-bikes (bicycles driven or supported by electric motors), portable powerbanks, electronic cigarettes,[90][91] and LED flashlights. Nominal voltage is 3.7 V.[69]
20700[92]		2800–4100[93]	20	70	Introduced by Sanyo/Panasonic for use in portable power tools as higher-power and higher-capacity successor for 18650 cells.[citation needed]
21700	21–70, 2170	3000–5000[94]	21	70	Announced by Samsung[95] and LG Chem in 2015 for use in electric bikes.[96] By January 2017, was being produced at Tesla Gigafactory 1 for the Tesla Model 3,[97] reaching an annual production rate of 1.8 billion cells annually (20 GWh per year) by mid-2018.[98] Also used for stationary storage (Tesla Powerwall 2 and Powerpack 2), with a July 2019 Tesla forecast that they would ship 2 GWh of batteries for stationary storage in 2019.[99]
25500[100]		2500–5500[101]	25	50
26500			26	50	About the same dimension as a C cell.
26650[102][103]		2400–5750[104]	26	65	Popular size as[105] ANR26650 LiFePO 4 cell from A123 Systems for radio control hobby use. Also used in larger, high-powered LED flashlights and some Electronic cigarettes.
26800		5500-6800[106]	26	80	A larger format for e-bikes and transport. Used in some flashlights. Higher capacity than traditional 26650 cells and good ability to pass higher current.
32600[107]		3000–6100[108]	32	60	About the same dimension as a D cell.
32650[109]		5000–6500[110]	32	67.7	Popular in larger LED flashlights.
38120	38120s, 38120HP	8000-10000	38	120	LiFePO4 3.2V. LiFePO4 properties: long lasting (2000+ cycles), safer, more stable, good continuous/peak discharge rates (3C/10C), less energy dense. These cylindrical cells are widely used in EVs including electric bikes, electric scooters, electric cars / hybrid electric cars, UPS batteries, storage batteries for solar power systems, starter batteries for cars and motorbikes etc. The Headway 38120HP cells are used in high discharge environments as they have very good continuous/peak discharge rates (10C/25C). Because four cells in series produces a voltage range similar to 6 cells of Lead-acids and their fire-resistant properties, they can be used to replace a 12V lead acid car battery.[citation needed]
38140	38140s	12000	38	140	LiFePO4 3.2V. Slightly taller version of the 38120 cells, most often used in electric bikes. Height including the screw terminals: 154mm[citation needed]
40152	40152s	15000	40	152	LiFePO4 3.2V. Largest cylindrical LiFePO4 cells. Height including the screw terminals: 167mm[citation needed]
4680	46800	25000[111]	46	80	Introduced by Tesla in 2020 as a high energy capacity cell for use in EVs.[112][full citation needed][113][114][115][116] Also presented by JAC/Volkswagen in joint-development with CBAK in early 2021.[117]

Obsolete batteries[edit]

These types are associated with legacy applications or no longer manufactured.

Names				Typical capacity (mAh)	Nominal voltage (V)	Terminal layout	Dimensions (mm)	Comments
Most common	Other common	IEC	ANSI
523	PX21	3LR50	1306A	580 (alkaline)	4.5		D: 17.1 H: 49.9	Used in cameras and Apple Macintosh computers (such as the 128K through 512K and similar). As the name suggests, this is often just 3 LR50 batteries stacked together.
531	PX19	3LR50	1307AP	580 (alkaline)	4.5		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	35000–40000  (carbon‑zinc)	1.5 V		D: 67 H: 172	Typical 21st century uses for this high capacity dry cell named so aptly 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,[4] 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	Eveready 504 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[118] and old battery–capacitor flashes. Used in Bang & Olufsen Beomaster 2400 remote controls. Still being manufactured as of 2020.
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.[119] the Regency TR-1 (first transistor radio) and old battery–capacitor flashes.
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.[120]
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.[121]
67.5-volt	Eveready 416		217	140	67.5 V (46 cells)	Both on same end	H: 88 L: 33 W: 25	Used in older instruments.[122]

PP series[edit]

The PP battery range

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.^[123] 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.

Image (with PP3/E-size for scale)	Names		Typical capacity (mAh)	Nominal voltage (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	2500	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	5000	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.

See also