List of battery sizes

This article lists the sizes, shapes, and general characteristics of some common primary and secondary battery types in household and light industrial use.

3LR12 (4.5-volt), D, C, AA, AAA, AAAA, A23 (12-volt), PP3 (9-volt), CR2032 (3-volt), and LR44 batteries

Historically 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.

The long history of disposable dry cells means that many different manufacturer-specific and national standards were used to designate sizes, long before international standards were agreed upon. Technical standards for battery sizes and types are published by standards organizations such as the International Electrotechnical Commission (IEC) and American National Standards Institute (ANSI). Many popular sizes are still referred to by old standard or manufacturer designations, and some non-systematic designations have been included in current international standards due to wide use.

The complete nomenclature for a battery specifies size, chemistry, terminal arrangement, and special characteristics. The same physically interchangeable cell size or battery size may have widely different characteristics; physical interchangeability is not the sole factor in substituting a battery.

Standardization
Main article: Battery nomenclature

The current IEC standards for portable primary (non-rechargeable) batteries bear the 60086 number. The relevant US standards are the ANSI C18 series, which are developed by a committee of the US National Electrical Manufacturers Association (NEMA).

Both standards have several parts that cover general principles, physical specifications, and safety. Designations by IEC and ANSI standards do not entirely agree, though harmonization is in progress. Also, manufacturers have their systems for identifying cell types, so cross-reference tables are useful to identify equivalent types from different manufacturers. [3]

Lead-acid automotive starting, lighting and ignition batteries have been standardized according to IEC standard 60095 and in North America by standards published by BCI.

Non-standard brand-specific names

Manufacturers may assign proprietary names and numbers to their batteries, disregarding common, colloquial, IEC, and ANSI naming conventions (see LR44 battery as an example). Often this is done to steer customers towards a specific brand, and away from competing or generic brands, by obfuscating the common name. For example, if a remote control needs a new battery and the battery compartment has the label, "Replace with CX472 type battery," many customers will buy that specific brand, not realizing that this is simply a brand name for a common type of battery. For example, British standard "U" series batteries were often sold under manufacturer prefixes such as "C", "SP", "HP", etc.; Ever Ready sold "U2" (D) batteries as "SP2" (standard-duty zinc carbon) and "HP2" (heavy duty zinc chloride).

On the other hand, with obscure battery types, the designation assigned by a specific brand will sometimes become the most common name for that battery type, as other manufacturers copy or modify the name so that customers recognize it.

Battery chemistry

The terminal voltage of a battery cell depends on the chemicals and materials used in its construction, and not on its physical size. For example, primary (non-rechargeable) alkaline batteries have a nominal voltage of 1.5 volts. Rechargeable NiCd (nickel cadmium) and NiMH (nickel metal hydride) typically output 1.25 volts per cell. Devices intended for use with primary batteries may not operate properly with these cells, given the reduction in voltage.

Dry Leclanché (carbon-zinc), alkaline and Lithium batteries are the most common modern types. Mercury batteries had stable cell terminal voltages around 1.35 volts. From the late 1940s until the mid-1990s, mercury batteries were made in many consumer and industrial sizes. They are no longer available since careless disposal can release toxic mercury into the environment. They have been replaced in some applications by zinc-air batteries, which also produce 1.35 volts.

The full battery designation identifies not only the size, shape and terminal layout of the battery but also the chemistry (and therefore the voltage per cell) and the number of cells in the battery. For example, a CR123 battery is always LiMnO2 ('Lithium') chemistry, in addition to its unique size.

The following tables give the common battery chemistry types for the current common sizes of batteries. See Battery chemistry for a list of other electrochemical systems.

Physical interchangeability

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

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[4] 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. This package has 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.[5]

Image
(AA size for scale)		 Names Typical capacity
(mAh)		 Nominal
voltage
(V)		 Size, dia. × h. (mm) Comments
Most common Other common IEC ANSI
​4⁄5AAFLYCO Ni-Cd, Ni-Mh600–15001.214.0 × 40.0 Same diameter as AA battery, used in small electronics, including electric shaver.
​1⁄2AASAFT LS14250
Tadiran TL5101
UL142502P		CR14250 (LiMnO2)
ER14250 (LiSOCl2)		850–12003 (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.
AAAAMX2500
Mini
UM 6 (JIS) 単6
#9 (China)		LR8D425 (alkaline)25A (alkaline)625 (alkaline)1.58.3 × 42.5 Sometimes used in pen flashlights, laser pointers, powered styluses, calculators, fishing lures.
AAAU16 or HP16 (In the UK)
Micro
Microlight
MN2400
MX2400
MV2400
Type 286 (Soviet Union/Russia)
UM 4 (JIS)[6] 単4
#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)
800–1000 (NiMH)
500 (NiZn)		1.510.5 × 44.5
(0.41 × 1.75)		 Introduced 1911, but added to ANSI standard in 1959

Used in many household electronic devices

AAU12 or HP7 (In the UK)
Pencil-sized
Penlight
Mignon
MN1500
MX1500
MV1500
Type 316 (Soviet Union/Russia)
UM 3 (JIS) 単3
#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)
1700–2700 (NiMH)
600–1000 (NiCd)
1500 (NiZn)		1.514.5 × 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 & released by Chinese company Kentli.[7]

AR23 (carbon‑zinc)
LR23 (alkaline)		1.517 × 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.

BU10 (UK)
336 (Russian Federation)		R12 (carbon‑zinc)
LR12 (alkaline)		8350 (alkaline)1.521.5 × 60 Most commonly found within a European 4.5 volt lantern battery.

Not to be confused with the vacuum tube B battery.

CU11 or HP11 (In the UK)
MN1400
MX1400
Baby
Type 343 (Soviet Union/Russia)
BA-42 (US Military Spec WWII–1980s)
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)		1.526.2 × 50
(1.03 × 1.97)		 Can be replaced with AA cell using a plastic sabot (size adaptor), with proportional loss of capacity.
Sub-CType 332 (Soviet Union/
Russian Federation)		KR22C429 (NiCd)
HR22C429 (NiMH)		1200–2400 (NiCd)
1800–5000 (NiMH)		1.222.2 × 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.[8][9]

DU2 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)		1.534.2 × 61.5
(1.35 × 2.42)		 Introduced 1898 as the first flashlight battery. Can be replaced with AA cells using a plastic sabot (size adaptor), with proportional loss of capacity.
FR25 (carbon‑zinc)
LR25 (alkaline)		6010500 (carbon‑zinc)
26000 (alkaline)		1.533 × 91 Four F cells are often found within 6 volt rectangular lantern batteries.
NLady
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)		1.512 × 30.2 Rechargeable nickel–cadmium and nickel–metal hydride are far less common than other rechargeable sizes.[10]

Mercury batteries of the same dimensions are no longer manufactured.

A11A11
11A
E11A
MN11
L1016
4LR23
V11GA
LR1016		 4LR932 (alkaline)1811A (alkaline)55 (alkaline)0610.3 × 16.0 Usually contains a stack of four LR932 button cells shrink wrapped together.
A23V23GA
23A
23AE
MN21
L1028
8LR23
LRV08
LR23A
A23S
144		 8LR932 (alkaline)1811A (alkaline)55 (alkaline)01210.3 × 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.

A27GP27A
MN27
L828
27A
V27A
A27BP
G27A		8LR732 (alkaline)22 (alkaline)0128.0 × 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.
BA5800BA5800/U (LiSOCl2)
BA5800A/U (LiSO2)		7500 (LiSO2)LiSO2:
05.3		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.
DuplexEver Ready No. 82R100321.8 × 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.[11]

4SR44PX28A
A544
K28A
V34PX		4LR44 (alkaline)110–150 (alkaline)
170–200 (silver‑oxide)		06.2 (alkaline)
06.5 (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
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.[12]

9-volt or E[13]PP3
Radio battery
Smoke alarm battery
Square battery
Transistor battery
006P
MN1604
Type Krona (Soviet Union/Russia)		6LR61 (alkaline)
6LP3146 (alkaline) [14]
6F22 (carbon‑zinc)
6KR61 (NiCd)
6HR61 (NiMH)		1604A (alkaline)
1604D (carbon‑zinc)
1604LC (lithium)
7.2H5 (NiMH)
11604 (NiCd)
1604M (mercury,
obsolete)[15]		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[16]		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)		6Screw 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)		918A22,000 (carbon‑zinc)
52,000 (alkaline)		6Screw 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.
J7K674LR61 (alkaline)1412A (alkaline)625 (alkaline)66.5 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

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
CR123ACamera 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[17]		 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.[11]
Used in flashlights and UV water purifiers.[18]

CR215270 (Li-ion rechargeable, 800 mA)
15266 (Li-ion, 600 mA)
6135-99-606-3982 (NSN)		CR15H270[19]5046LC750 (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.[11]

2CR5EL2CR5
DL245
RL2CR5
KL2CR5
6135-99-577-2940 (NSN)		2CR55032LC[20]15006Double 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.[21]

CR-P2BR-P2
223A
CR17-33
5024LC		CR-P25024LC[22]15006Double 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-V3CRV3
RCR-V3 (Li-ion)		5047LC
5047LF (primary)[23]		3000 (lithium)
1300 (Li-ion)		3 (lithium)
3.6 (Li-ion)		Double cylinder flat pack. Keyed.Both on one endH: 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.

CP1DLCP1
DL-CP1C		CP3553[24]2300[25]3Prismatic.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).[25]
Disposable equivalent of the Nikon EN-EL5 Li-ion rechargeable camera battery.[24]

7R31 Kodak K

7R31

538

 4.5 Cartridge Negative along body, positive side of battery exposed for positive Approx:

H: 19 mm

L: 64 mm

W: 16 mm

 Typically a cartridge of three mercury button cells for use in 110 format cameras.

Button cells - coin, watch
See also: Button cell

Lithium cells
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.[26]

Names Typical capacity
(mAh)		 Standard discharge current
(mA)		 Dimensions
d × h
(mm)		 Comments
IEC ANSI
CR927309.5 × 2.7 Used extensively in blinkies. Also used in some LEGO toys.
CR10255033LC300.110 × 2.5
CR11307011.5 × 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[27][28]

CR12165034LC250.112.5 × 1.6 Used in some lighted watches and some LED decorator lights (electronic tea candles).
CR12205012LC35–400.1 (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.[29][30]
CR12255020LC500.212.5 × 2.5 Maximum discharge current: 1 mA. Maximum pulse discharge current: 5 mA.
CR161650–550.116 × 1.6 Used in automobile key remotes and in Game Boy cartridges (for powering the RAM for saved games).
CR16205009LC75–780.116 × 2.0 Used in automobile key remotes and early digital watches.
CR1632140 (CR)
120 (BR)		0.1 (CR)
0.03 (BR)		16 × 3.2 Used in automobile key remotes; e.g., Toyota Prius 2012.
CR2012550.120 × 1.2
CR20165000LC900.1 (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.
CR2020115–12520 × 2
CR20255003LC160–1650.220 × 2.5 Frequently used in digital watches and automobile remotes.
CR20325004LC225 (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. Weighs around 2.9 g.[31]

CR204028020 × 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.
CR205020 × 5.0 Available.
CR2320110–175 [32][33][34]23 × 2
CR2325165–21023 × 2.5 The most common battery size in Soviet/Russian electronic watches, calculators and remote controls.
CR2330265 (CR)
255 (BR)		0.2 (CR)
0.03 (BR)		23 × 3.0
BR2335[35]165 (BR)23 × 3.5
CR23545600.223 × 5.4
CR24121000.224.5 × 1.2
CR24305011LC270–29024.5 × 3.0 Used in XBand Modem to save updates and profile data.
CR24505029LC610–62024.5 × 5.0 Portable devices requiring high current (3.0 mA) and long shelf life (up to 10 years)
CR247710000.224.5 × 7.7 Has the highest capacity of lithium button cell batteries.[36]
CR3032500–560 (CR)
500 (BR)		0.1-0.2 (CR)
0.03 (BR)		30.0 × 3.2 Continuous discharge current taken from Panasonic Catalog.
CR1110816011.6 × 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[37]), Energizer (L544, now obsolete[38]), and others.

A CR1/3N is also used by photographers instead of two LR44 batteries in cameras.

Silver oxide and alkaline cells

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[39] 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
SR41AG3/SG3/G3-A
LR41
192/384[40]/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
SR42242[41]
344[40]/350[42]
387S[43]		 SR1136 (KOH electrolyte, 344/350)
SR1136S (NaOH electrolyte, 387S)		1139SO 63 (387S)
100 (344/350)		 11.6 × 3.6
SR43AG12/SG12
LR43
L1142
186/301[40]/386
6135-99-547-0573 (NSN)(S)		LR1142 (L)
SR1142 (S)		1133SO (S)
1132SO (S)		 80 (L)
120–125 (S)		 11.6 × 4.2
SR44AG13/SG13
LR44/LR154
6135-99-792-8475 (NSN)(alkaline)
6135-99-651-3240 (NSN)(S)
A76/S76/EPX76
157/303[40]/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
SR45AG9/SG9
LR45
194/394/380[40]
6135-99-782-4675 (NSN)(S)		LR936 (L)
SR936 (S)		 48 (L)
55–82 (S)		 9.5 × 3.6
SR48AG5/SG5
LR48
L750
193/309[40]/393		LR754 (L)
SR754 (S)		1136SO (S)
1137SO (S)		 52 (L)
70 (S)		 7.9 × 5.4
LR52A640PX, E640, EN640A, EPX640A,
MR52, PX640, PX640A[44]		LR52 (L)
MR52 (M)		1126A (L)[45] 335 (L)[45] 15.8 × 11.1[45] 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[44]

SR54AG10/SG10/G10-A
LR54
189/387/389/390[40]
LR1130/SR1130
6135-99-796-0471 (NSN)(S)		LR1131 (L)
SR1131 (S)		1138SO (S) 44–68 (L)
80–86 (S)		 11.6 × 3.1
SR55AG8/SG8
LR55
191/381[40]/391
LR1120/SR1120		LR1121 (L)
SR1121 (S)		1160SO (S) 40–42 (L)
55–67 (S)		 11.6 × 2.1
365, 366[40], S16, 608SR1116SW1177SO [46] 28–40[47][48] 11.6 × 1.651.55 V
SR56SR1126 11.6 × 2.6 Listed in IEC 60086-2:2001, but apparently no longer manufactured by any major company.
SR57AG7/SG7
LR57
195
395(low-drain)[40]/399(high-drain)[49]
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
SR58AG11/SG11
LR58
162/361/362[40]		LR721 (L)
SR721 (S)		1158SO (S) 18–25 (L)
33–36 (S)		 7.9 × 2.1
SR59AG2/SG2
LR59
196/396/397[40]		LR726 (L)
SR726 (S)		1163SO (S) 26 (L)
30 (S)		 7.9 × 2.6
SR60AG1/SG1
LR60
164/364[40]		LR621 (L)
SR621 (S)		1175SO (S) 13 (L)
20 (S)		 6.8 × 2.1
SR62SR516SW
317[40]		LR516 (L)
SR516 (S)		 11 (S) 5.8 × 1.6
SR63AG0/SG0
LR63
379[40]		LR521 (L)
SR521 (S)		 10 (L)
18 (S)		 5.8 × 2.1
SR64LR64
319[40]		LR527 (L)
SR527 (S)		 12 (L)
20 (S)		 5.8 × 2.7
SR65SR616SW
321[40]		LR65
Varta V321		 6.8 × 1.65
SR66AG4/SG4
LR66
177/376/377[40]
SR626SW		LR626 (L)
SR626 (S)		1176SO (S) 12–18 (L)
26 (S)		 6.8 × 2.6 Commonly used in many wrist watches.
SR67315[40]SR716 (S) 21 (S) 7.9 × 1.65
SR68SR916SW
373[40]		LR916 (L)
SR916 (S)		 26 (S) 9.5 × 1.6
SR69AG6/SG6
LR69
171/370/371[40]
LR920/SR920		LR921 (L)
SR921 (S)		 30 (L)
55 (S)		 9.5 × 2.1
SR416SR416SW
337[40]		LR416 (L)
SR416 (S)		 8 (S) 4.8 × 1.6
SR512 335[40] SR512SW 5.5 (S) 5.8 × 1.3
SR712SR712SWSR712 (S) 9 (S) 7.9 × 1.3
SR731SR731SW
24
329[40]		LR731 (L)
SR731 (S)		 36 (S) 7.9 × 3.1
LR932LR932 (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)
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, ZA5PR637012ZD335.8 × 2.5 Marked as "discontinued" in Energizer data sheet.[50]
10     Yellow tab, AC10, AC10/230,[51] DA10, DA230, ZA10[52][53]PR707005ZD915.8 × 3.6
13     Orange tab, ZA13PR487000ZD2807.9 × 5.4
312     Brown tab
6135-99-752-3528 (NSN)
ZA312		PR417002ZD1607.9 × 3.6
630DA630[51]7007Z1,00015.6 × 6.2 No longer listed by Duracell
675     Blue tab, ZA675PR447003ZD60011.6 × 5.4
AC41EPR437001Z39011.6 × 4.2 Discontinued

Lithium-ion batteries (rechargeable)
An alkaline AA size battery and an 18650 size lithium ion battery

Cylindrical lithium-ion rechargeable battery

Lithium-ion rechargeable batteries are generally not interchangeable with primary types using different chemistry, though certain lithium primary cell sizes do have lithium-ion rechargeable equivalents. Most rechargeable cylindrical cells use a chemistry with a nominal voltage around 3.7 volts, but LiFePO
4 cells produce only 3.2 volts.

Generally for batteries with nominal voltage of 3.7 volts, full charge voltage(100% charged) is 4.2 volts and fully discharged voltage (0% charge remaining) is 3.0 volts.

Lithium-ion cells are made in various sizes, often assembled into packs for portable equipment.[54] Many types are also available with an internal protection circuit to prevent over-discharge and short-circuit damage. This 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. Safe and economic recharging requires a charger specified for these cells. Popular applications include laptop battery packs, electronic cigarettes, flashlights, electric vehicles, and cordless power tools.

Commonly-used designation numbers indicate the physical dimensions of the cylindrical cell, in a way similar to the system used for lithium button primary cells. The larger rechargeable cells are typically assigned five-digit numbers, where the first two digits are the (approximate) diameter in millimeters, followed by the last three digits indicating the (approximate) height in tenths of millimeters.

Names Typical
capacity
(mAh)		 Dimensions (mm) Comments
Id.: Other common Diameter Length
07540 80–150 7.540 Used in some Electronic cigarettes.
08570 280 8.557 Used in some Electronic cigarettes.
10180 Lithium ion ​1⁄3 AAA 90 1018 Sometimes called ​1⁄3 AAA. Used in tiny flashlights.
10280 Lithium ion ​2⁄3 AAA 200 1028 Used in small flashlights.
10440[55] Lithium ion AAA 250–350[56] 1044 Same size as AAA cell.
14250 Lithium ion ​1⁄2 AA 300 1425 Same size as ​1⁄2 AA cell. Used in the flashlight Lummi RAW.
14430 400–600[57] 1443 Used in solar garden lights, used in rechargeable shavers (e.g., some Philips/Norelco).
14500[58] Lithium-ion AA 700–1000[59][60] 1453 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)[61][62] Used in many LED flashlights. Nominal voltage is 3.7 V.
14650[63] 940–1200[64] 1465 Approximately ​5⁄4 the length of a AA cell.
15270[65] RCR2 450–600 1527 Substitute for CR2 primary lithium. Nominal voltage usually is 3 V.
16340 RCR123A 550–800[66] 1634 Alternate substitute for CR123A primary lithium.[67] Unprotected. (16 × 36, some protected versions[68]).
16650 1600–2500[69] 1665 Made by Sanyo and a few others, narrower version of 18650 cells.
17500[70][71] A 830–1200[72][73] 1750 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[74] 17 65 Between the size of a 16650 and 18650.
17670[75][76] 1250–1600[77] 1767 Twice the length of a standard CR123A.
18350 700–1200[78] 1835 [67]
18490[79] 800–1400[80] 1849 Slightly shorter than a 18500 cell.
18500[81][82] 1100–2040[83] 1850 About the same length as an AA cell, but larger diameter.
18650[84][85] 168A 1500–3500[86] 1865 This cell type is used in many laptop computer batteries, cordless power tools, certain electric cars, electric kick scooters[87], most e-bikes (bicycles driven or supported by electric motors), electronic cigarettes,[88][89] and LED flashlights. Nominal voltage is 3.7 V.[67]
20700[90] 2800–4100[91] 2070 Introduced by Sanyo/Panasonic for use in portable power tools as higher-power and higher-capacity successor for 18650 cells.
21700[92] 21-70, 2170 3000–5000[93] 2170 Announced by Samsung[94] and LG Chem in 2015 for use in electric bikes.[95] By January 2017, was being produced at Tesla Gigafactory 1 for the Tesla Model 3,[96] reaching an annual production rate of 1.8 billion cells annually (20 GWh per year) by mid-2018,[97] with a July 2019 Tesla forecast that they would ship 2 GWh of batteries in 2019.[98]
25500[99] 2500–5500[100] 2550
26500 2650 About the same dimension as a C cell.
26650[101][102] 2400–5750[103] 2665 Popular size as[104] ANR26650 LiFePO
4 cell from A123 Systems for radio control hobby use. Also used in larger, high-powered LED flashlights and some Electronic cigarettes.
32600[105] 3000–6100[106] 3260 About the same dimension as a D cell.
32650[107] 5000–6500[108] 3267.7 Popular in larger LED flashlights.
38120 38120s, 38120HP 8000-10000 38120 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 & 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.
38140 38140s 12000 38140 LiFePo4 3.2V. Slightly taller version of the 38120 cells, most often used in electric bikes. Height including the screw terminals: 154mm
40152 40152s 15000 40152 LiFePo4 3.2V. Largest cylindrical LiFePo4 cells. Height including the screw terminals: 167mm

Obsolete batteries

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,[3] 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 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.

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[109] and old battery–capacitor flashes.

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.[110] 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.[111]
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.[112]
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.[113]

PP series
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 and PP9, which are used in electric fencing and marine applications respectively) is readily available.[114] 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
(9-Volt or 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 9-volt, above
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 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.
gollark: #apionet is on heavserver.
gollark: <#348702212110680064> on esolangs.
gollark: Nope.
gollark: Use a non-#e channel.
gollark: Anyway, I have installed grafana/prometheus and will now graph ALL things at stats.osmarks.net.

See also

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Further reading
  • 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
  • MOD Defence Standard 61-021 Generic Specification for Batteries
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